A04561, Rev 0 to CA04561, Nitrogen Gas CR Chemical Habitability

Rev 0 to CA04561, Nitrogen Gas CR Chemical Habitability

ML20210V293
Person / Time
Site:	Calvert Cliffs
Issue date:	09/30/1998
From:	Gryczkowski G, Mihalcik J, Sommerville I BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20210V122	List: A04319, Rev 0 to CA04319, 8500 Gal 30% Ammonium Hydroxide CR Chemical Habitability A04320, Rev 0 to CA04320, 5,000 Gal 35% Hydrochloric Acid CR Chemical Habitability A04541, Rev 0 to CA04541, 350 Gal 40% Dimethylamine CR Chemical Habitability A04542, Rev 0 to CA04542, 375 Gal 35% Hydrazine CR Chemical Habitability A04545, Rev 0 to CA04545, 700 Lbm Freon-22 CR Chemical Habitability A04552, Rev 0 to CA04552, 1,100 Tons 100% Benzene CR Chemical Habitability A04553, Rev 0 to CA04553, 55 Gal 100% Acetone CR Chemical Habitability A04554, Rev 0 to CA04554, 12,900 Gal 100% Sulfuric Acid CR Chemical Habitability A04555, Rev 0 to CA04555, Hydrogen Gas CR Chemical Habitability A04556, Rev 0 to CA04556, 1,100 Tons 100% Toluene CR Chemical Habitability A04557, Rev 0 to CA04557, 350 Gal 85% Ethanolamine CR Chemical Habitability A04558, Rev 0 to CA04558, 400 Gal 80% 5-Amino-Pentanol CR Chemical Habitability A04561, Rev 0 to CA04561, Nitrogen Gas CR Chemical Habitability A04571, Rev 0 to CA04571, 4 Tons Liquid Carbon Dioxide CR Chemical Habitability A04598, Rev 0 to CA04598, Halon CR Chemical Habitability ML20210V118
References
CA04561, CA04561-R00, NUDOCS 9908230091
Download: ML20210V293 (57)

Text

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Engineenng Services Process Overview EN-1-100 Revision 10 Page 105 of153 ATTACHMENT 19, CALCULATION COVER SIIEET INITIATION (Control Doc Type - DCALC)

/ Page_/__,of$_~1 bCAL'CNo.:

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Revision No.:

o Vendor Calculation (Clieck one):

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[$/gp/py0 Supp No.: o Rev. No.: 6 Responsible Group:

gg Responsible Engineer: [r,d E fvdo-,/i CALCULATION ENGINTIRING O Civil O Instr & Controls

)d Nuc Engrg O Electrical O Mechanical O DieselGen Project O LifeCycleMagmt O ICeliabilityEngrg O Nuc FuelMagmt O Other:

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Title:

0WW W Of154 UN/A/Vf7 Unit O UNrr1 O UNTT2

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Proprietary or Safeguards Calculation O YES ft'NO Comments:

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Vendor Calc No.:

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REVIS!O.N NO.:

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Safety Class (Check one);

ySR O AQ ONSR There are assumptions that require Verification during walkdown:

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• Dtis calculation SUPERSEDES:

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REVIEW AND APPROVAL:

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CA04561 Rev.0 Page 2-i

2. LIST OF EFFECTIVd P AGES Page Latest Page Latest Page Latest Page Latest Page Latest

- Rev Rev

' Rev Rev' Rev 001 0 002 0 003 0 004 0 005 0 006 0 007- 0 008 0 009 0 010 0 011 'O 012 0 013 0 014 0 015 0 016 0-017 0 018 0-019 0 020 0 021 0 022 0 023' 0 024 0 025 0 026 0 027' 0-028 0 029 0 030 0 031 0 032 0 033 0 034 0 035 0 036 0

.037 0 038 0 039 0 040 0 i

041 0 042 0 043 0 044 0 045 0 046 0 047 0 048- 0 049 0 050 0 051 0 052 0 053 0 054 0 055 0 I

056 0 057 0

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CA04561 Rev.0 Page 3

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3. REVIEWER COMMENTS

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- CA04561 Rev.0 Page 4

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4. TABLE OF CONTENTS 01.COVERSHEET...................................................................................................................1

02. LI ST OF EFFECTIVE PAGES.......................................................................................... 2

03. REVIEWER COMM ENTS............................................................................................... 3

04. TAB L E O F CONTENTS..................................................,................................................. 4

05. PURPOSE............................................................................................................................5 06.INPUTDATA......................................................................................................................6 0 7. TEC HNI CAL AS S UMPTI ON S......................................................................................... 10

' 0 8. RE F E REN C ES................................................................................................................. 1 1

09. M ETHOD S OF AN ALYSI S.............................................................................................. 13 r

1 0. C ALCUL ATI ON S............................................................................................................ 14

11. DOCUMENTATION OF COMPUTER CODES............................................................... I 5 12.RESULTS..........................................................................................................................16 1 3. CON CLU S I ON S............................................................................................................... 1 7

14. ATTA C HMENTS............................................................................................................... I 8 4

AT,TACHMENT A: DATA FOR NITROGEN.................................................................... I 8

' ATTACHMENT B: ARCON96 RUNS FOR AUX BLDG ROOF INLET......................... 21 ATTACHMENT C: ARCON96 RUNS FOR WEST ROAD INLET PLENUM................ 24 i

ATTACHMENT D: EXCEL SPREADSHEET NITROGEN - AUX BLDG ROOF INLET....................................... 27 g

A'lTACHMENT E: EXCEL SPREADSHEET 4

NITROGEN - WEST ROAD INLET............................................ 29 i

A'ITACHMENT F: SYSTEM DESCRIPTION # 74......................................................... 31 A'ITACHMENT G: CROSS SECTIONAL AREAS.......................................................... 50 A'lTACHMENT H: ATMOSPHERIC DENSITY VS ALTITUDE................................... 52 j

LAST PAG E OF REPORT...................................................................................................... 5 7 j

J

CA04561 Rev.0 Page 5

5. PURPOSE 10CFR50 App.A GDC.19 (Ref.1) requires that a control room be provided, from which actions can be taken to operate the nuclear power plant safely under normal conditions and to maintain it in a safe condition under accident conditions. Release of hazardous chemicals can potentially result in the control room becoming uninhabitable. Thus the NRC requires each utility to assess the habitability of the control room during and after a postulated extemal release of hazardous chemicals based on the chemical toxicity limit, vaporization rate, and the relevant atmospheric dispersion coefficients (Ref.2). The explosion and flammability hazard of these chemicals must I

also be addressed (Ref.2).

CCNPP stores liquid nitrogen in the 11300 gal stainless steel storage tank located in the tank farm. The chemical habitability of the control room after a chemical release involving liquid nitrogen was determined based on in-house dispersion calculations and toxicity determinations for the current control room configuration with the inleakage points at the control room inlet and exhaust dampers and for the modified control room configuration with the inleakage points at the

. west road inlet plenum (Refs.3-4). Results indicate that liquid nitrogen can be stored in the

~

11300 gal stainless steel storage tank located in the tank farm without constituting a toxicological or fire hazard to the control room following a worst case accident for both the current and modified control room configurations.

The results of the toxicity calculations for liquid nitrogen are as follows:

Peak Concentration (% v/v)

Tank Farm Current Configuration No Recirculation 0.48 Modified Configuration With Recirculation 0.12 Toxicity Limit (Asphyx) 15.00 Note that under the current and modified configurations, the peak control room concentrations under worst case conditions are less than the asphyxiation toxicity limit, defined as the amount of i

asphyxiant required to reduce the oxygen level to that at one mile of altitude (the altitude of Denver, Colorado). Nitrogen will not pose a flammability or explosion hazard in the control i

room, since nitrogen gas is nonflammable per Refs.5 and 9.

The current calculation incorporates many assumptions which make these results conservative.

(1) An asphyxiation toxicity limit was utilized, defined as the amount of asphyxiant required to reduce the oxygen level to that at one mile of altitude (the altitude of Denver, Colorado). The regulatory requirements of Ref.2 dictate a maximum concentration limit that could be tolerated for 2 mmutes without physical incapacitation of an average human. (2) For the current configuration the maximum control room intake flowrate of 8300 cfm is utilized. This value is twice the normal operating value (Refs.6-8). (3) The control room volume conservatively neglects dead spaces in the control room ceiling and the volume of room A512. (4) The most conservative methodology is utilized: instant flashing of the entire quantity of Nitrogen.

CA04561 Rev.0 Page 6

6. INPUT DATA The following input data is incorporated into this work:

(01) Chemical data for Nitrogen:

CAS number 7727-37-9 Refs.5,9 Chemical formula N

Refs.5,9 2

Toxicity Limit (% v/v) 15.

Assumed Odor threshold (ppm)

None Refs.5,9 Volume fraction 1.00 Asstuned Volume (gal) 11300 Ref.10 Specific gravity (gm/cc) 0.807@-195.5 C Refs.5,9 Boiling point (Degrees C)

TB

-195.6 Ref.5 Molecular weight (gm/ mole) MB 28.0 Refs.5,9 Lower flammable limit (Vol%)

Non-flammable Refs.5,9 (02) Physical properties of air per Refs.13,14:

Molecular weight (gm/ mole) MA 28.97 Characteristic length in air (Angstroms) SIGA 3.711 Molecular energy of attraction / Boltzmann constant (K) E/KA 78.6 Mass density of air (gm/cc) RHOA 1.204E-03 Viscosity of Air (gm/cm-sec) MU 1.83E-04 Universal Gas Constant (torr-cm3/gmole-K) R 6.24E+04 (03) The updated control room volume of 234157 ft' was extracted from Ref.18.

(04) Control room damper inflow for the current configuration is extracted from Refs. 7-8 and is defined as 8300 cfm or twice the maximum flowrate.

(05) Control room inleakage for the modified configuration is extracted from Refs. 3-4 and is

' defined as 3000 cfm.

(06) The Tank Farm-Control Room ARCON96 X/Q inputs were derived as follows (Att.B):

(a) Number of meteorological data files:

3 Refs.B2,B10

-(b) Meteorological data file names:

CC1991. MET Refs.B2,B10 CC1992. MET Refs.B2,B10 p

CC1993. MET Refs.B2,B10

- (c) Height oflower wind instrument (m):

10.

Ref.B3 (d) Height of upper wind instrument (m):

60.

Ref.B3 (e) Wind speed units type (1=m/s,2= mph,3= knots): 1-Refs.B2,B10 (f) Release type (l= ground,2= vent,3= elevated):

1 (g) Release height (m):

0.

n as CA04561 Rev.0 Page 7

' (h) Building area (m'):

I155.

Af.G The cross sectional area calculations ap analyzed in Att.G. The calculation of containment cross sectional area yields 12435.63 ft above the rooftop level of 91'6'.'. The auxiliary 2

building cmss sectional area can be calculated to be 1938.93 ft. For a west-to-cast wind directiorg the total cross-sectional area of the auxiliary building and the two containments is

. 26810 ft. For an eagt-to-west wind dimetion, the total cross sectional area of the turbine building is 27167 ft. For a north-to-so r n and south-to-north wind firection, the total cross sectional area of the containment and the tybine buildipg is 21016 ft. The cross-sectional I

area of a single containment of 12435.63 ft or 1155 m will conservatively be used.

(i) Effluent vertical velocity (m/s):

0 3

(j) Stack or vent flow (m /s):

0 (k) Stack or vent radius (m):

36.89 2

2 r = SQRT(A/n) = SQRT[(11300 gal)*(3785.422cc/ gal)/(1.cm)/n*(1.E-4m /cm )] = 36.89m i

1 (1) Direction to source (deg):

339 Refs.B12,B14

-(m) Source window (deg):

90 Refs.B13-B14 (n) Distance from source to receptor (m):

141.1 Refs.B12,B14 (o) Intake height (m):

15.62 j

91.5' + 4.75' - 45' = 51.25' = 15.62 m

. whem 91.5' is the height of the Auxiliary Building roof (Ref.B6),4.75' is the cc.ntrol room exhaust height (Ref.B13), and 45' is ground level (Ref.B8).

(p) Grade elevation diffemnce (m):

0 R ef.B1 (q) Primary output file name:

CHTF3CR.OUT.

(r)JFT file name:

CHTF3CRJFD (s) Surface roughness length (m):

0.1 Ref.B1

_ (t) Minimum wind speed (m/s):

0.5 Ref.Bl (u) hector averaging constant:

4 Ref.Bl

- (v) Hours in average:

1 2 4 8 12 24 96 168 360 720 Ref.B1 (w) Minimum number of hours: 1 2 4 8 11 22 87 152 324 648 Ref.B1 (x) Horizontal diffusion coefficient (m):

17.16 c =r/2.15=36.89/2.15=17.16 m (Ref.B1) y

~ (y) Vertical diffusion coefficient (m) 0.

j i

(z) Flag for expanded output:

n Ref.B1 l

r CA04561 Rev.0 Page 8

- (07) Atmospheric dispersion coefficienty from the Tank Farri$ to the Control Room:

.0- 2 hrs 2.65E-04 sec/m 3

2-' 8 hrs 2.14E-04 sec/m' 8-24 hrs 9.89E-05 sec/m 3 96 hrs

' 6.92E-05 sec/m'96-720 hrs 5.66E-05 sec/m

. (Attachment B, Refs.B1, BIO, B15):

(08) The Tank Farm-West Road Inlet ARCON96 X/Q inputs were derived as follows (Att.C):

(a) Number of meteorological data files:

3 Refs.B2,B10 (b) Meteorological data file names:

CC1991. MET Refs.B2,B10 CC1992. MET Refs.B2,B10 CC1993. MET Refs.B2,B10 (c) Height oflower wind instrument (m):

10.

Ref.B3 (d) Height of upper wind instrument (m):

60.

Ref.B3 (e) Wind speed units type (1=m/s,2= mph,3= knots): 1 Refs.B2,B10

- (f) Release type (l= ground, 2= vent, 3= elevated):

1 (g) Release height (m):

0.

2 (h) Building area (m ):

1155.

Att.G The cross sectional area calculations ap analyzed in Att.G. The calculation of containment cross sectional area yields 12435.63 ft above the rooftop level

. building cross sectional area can be calculated to be 1938.93 ft,of 91'6". The auxiliary

. For a west-to-east wind

- directiog the total cross-sectional area of the auxiliary building and the two containments is 26810 ft. For an eagt-to-west wind direction, the total cross sectional area of the turbine building is 27167 ft. For a north-to-south and south-to-north wind girection, the total cross sectional area of the containment and the tybine buildipg is 21016 ft. The cross-sectional area of a single containment of 12435.63 ft or 1155 m will conservatively be used.

(i) Effluent vertical velocity (m/s):

0 (j) $ tack'or vent flow (m'/s):

0 (k) Stack or vent radius (m):

36.89 2

2 r = SQRT(A/x) = SQRT[(11300 gal)*(3785.422cc/ gal)/(1.cm)/x*(1.E-4m /cm )] = 36.89m (1) Direction to source'(deg):

358 Refs.B12,B14 j

i (m) Source window (deg):

90 Refs.B13-B14 (n) Distance from source to receptor (m):

182.2 Refs.B12,B14 (o) Intake height (m):

9.14 The Auxiliary Building roof above the control room and above A512 will be sealed tight.

CA04561 Rev.0 Page 9 :

Most control room inleakage can ben be assumed to originate at the Auxiliary' Building inlet plenum on the west road side (ES199702144). Per Ref.Bl1, the inlet plenum is j

. 54'x10' with a bottom elevation of 70'. Thus the intake height is 75'-45'=30'=9.14 m

' (p) Orade elevation difference (m):

0 Ref.B1 '

i.

(q) Primary output file name:

CHTF3WR.OUT TB (r)JFT file name:

CHTF3WR.JFD TB (s) Surface roughness length (m):

0.1 Ref.B1

. (t) Minimum wind speed (m/s):

0.5 Ref.B1

. (u) Sector averaging constant:

4 Ref.B1 (v) Hours in average:

1 2 4 8 12 24 96 168 360 720

- Ref.Bl

- (w) Minimum number ofhours: 1 2 4 8-11 22 87 152 324 648 Ref.B1 (x) Horizontal diffusion coefficient (m):

17.16 c =r/2.15=36.89/2.15=17.16 m (Ref.B1) y (y) Vertical diffusion coefficient (m) 0.

(z) Flag for expanded output:

n Ref.B1

- (09) Atmospheric dispersion coefficienty from the Tank Farm to the West Road Inlet:

j 0- 2 hrs 1.75E-04 sec/m' 2-8 hrs 1.41E-04 sec/m

, 8-24 hrs 6.57E-05 sec/m' l

24-96 hrs 5.04E-05 sec/m96-720 hrs 3.90E-05 sec/m (Attachment C, Refs.B1, BIO, B15)

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e CA04561 Rev.0 Page 10

' 7. TECHNICAL ASSUM TIONS The following technical assumptions were utilized in this work:

(01) Per Refs.10 and 19, CCNPP stores liquid nitrogen in the 11300 gal stainless steel storage tank located in the tank farm.

- (02) Per Ref.15 in a postulated accident, it is assumed that the entire container of the toxic substance ruptures.-

(03) Based on the characteristics of nitrogen, all of the spilled material is assumed to immediately evaporate due to its low boiling point.

(04) An asphyxiation toxicity limit was utilized, defined as the amount of asphyxiant required to reduce the oxygen level to that at one mile of altitudg (while the air density at 10.km Att.H), the air density at 0 km is 1.220 kg/m,

Ref.lp (Assuming a linear function between the logarithm of density and the altitude kg/m.

following algorithm can be generated:

Logio(p) = -0.045797

• z(km) + 0.086360 Thus for z=1 mile =5280 ft=1.609 km, p = 1.029 kg/m'.or 84.39% normal.

Thus at an altitude of 1 mile, the oxygen level is reduced by 15%. This is equivalent to replacing 15% of the air volume by nitrogen.

. CA04561 Rev.0 Page11 f

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8. REFERENCES (01)" Control Room",10CFR50, Appendix A, General Design Criterion 19.

(02) " Assumptions for Evaluating the Habitability of a Nuclear Power Plant Control Room During a Postulated Hazardous Chemical Release", Regulatory Guide 1.78,6/74.

(03)" Response to RAI: Accident Dose Analysis and Control Room Habitability Analysis for the MHA, FHA,' and CEAEE", NRC-98-044.

(04) " Response to RAI: Control Room Habitability Analyses and MSLB Analyses", NRC 018.-

(05) " Hazardous Chemicals Data Book", Second Edition, Edited by G. Weiss, Noyes Data

. Corporation.

(06) "Offsite and Control Room Doses Following a LOCA", Bechtel Calculation M-89-33 Rev.3,7/9/91.

(07)" Fan Performance Curve", BGE DWG 12782-35, Rev.0.

(08) " Control Room Temperature During Normal and Emergency Recirculation Modes of Operation", Bechtel Calculation M-91-24,11/9/92.

(09) " SAX's Dangerous Properties ofIndustrial Materials", Ninth Edition, Richard J. Lewis Sr.

(10) " Nitrogen System", System Description No. 74, Rev.0,1/6/98.

(11) "The Merck Index", Eleventh Edition,1989.

(12)',' CRC Handbook of Physics and Chemistry",66th Edition,1985-1986.

(13) " Handbook of Chemical Property Estimation Methods, Environmental Behavior of Organic Compounds", W.Lyman, W.Reehl, and D.Rosenblatt, McGraw Hill 1982.

(14)." Flow of Fluids through Valves, Fittings, and Pipe", Crane Technical Paper No.410,1988.

(15) "Joxic Vapor Concentrations in the Control Room Following a Postulated Accidental Release", NUREG-0570,6/79.

' (16) "CCNPP Control Room Habitability Evaluation Due to a Postulated Spill of Ethanolamine",

Bechtel Calculation M-94-16 Rev.0,11/10/94.

- (17) " Heat Transfer", Seventh Edition, J.P.Holman.

(18)"Modeling of the Control Room / Cable Spreading Room HVAC System Using GOTHIC Software", CA02725,1/8/97.

(19)"Onsite Accidental Release of N and H ", Bechtel Calculation M-80-37,1/19/81.

2 2

i i

CA04561 Rev.0 Page 12 (B1)"Itmospheric Relative Concentrations in Building Wakes", NUREG/CR-6331 Rev.1,5/97.

_ (B2) CCMAIL from Mark Abrams at PLG to G.E.Gryczkowski,3/5/97.

(B3)" Wind Flows and Dispersion Conditions at Calvert Cliffs", Maria Gavrilas and Melissa Wieland, BG&E-EP1,9/85.

(B4) " Atmospheric Dispersion Coefficient Calculations from the MSG and ADV to the Control Room", CA03533,1/17/97.

- (BS)" Auxiliary Building and Containment Structures Exterior Elevations East & West", BGE Drawing 62-047-E, Rev.6 (B6) " Auxiliary Building Roof Plan", BGE Drawing 62-043-E, Rev.12.

(B7) " Containment Liner Plan, Elevation & Penetrations", BGE Drawing 61-740-E, Rev.19.

(B8) " General East and South Elevations", BGE Drawing 62-006-E, Rev.4.

(B9) " Equipment Location Turbine Building Unit 1 Plan Floor El 12'0"", BGE Drawing 60-207-E Rev.11.

~

(B10)"ARCON96: Atmospheric Relative Concentrations in Building Wakes", CA03940, 8/21/97.

(B11) " Heating and Ventilation System, Auxiliary Building, El. 69'0", Sections and Details",

BGE Drawing 60-330-E, Rev.14.

(B12) " Wind Tunnel Modeling of CCNPP", CA00748 Rev.0,10/25/95 (B13) "ARCON95 X/Q Analysis", Bechtel Calculation M-97-02 Rev.0,5/8/97.

(B14) "ARCON95 X/Q Analysis", Bechtel Calculation M-97-03 Rev.0,7/1/97.

(B 15) " Analytical Software Installation Test of ARCON96", CA03941, 8/21/97.

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CA04561 Rev.0 Page 13

9. METHOD OF ANALYSIS

. This work utilizes the following methodology to calculate mass transfer from the spill site to the i

control room.

(01) This methodology is for liquids with boiling points less than the ambient temperature. For this case the entire inventory of toxic material is assumed to flash to a gaseous state in t seconds.

The vapor density outside the control room is thus governed by the following equations.

3 VD = (M0/t)*ADC (gm/m )

PPM = (24500/MB)*VD where M0 = Inital mass ofliquid (gm).

t

= Flash time (sec)

ADC = Atmospheric dispersion coefficient (sec/m3)

MB = Toxic gas molecular weight (gm/ mole)

The maximum concentration inside the control room can be readily calculated via the following:

3 VDC = VD*(1.-exp(-FCR/VCR*t/60))(gm/m )

. where FCR~ = Control room inflow (cfip)

VCR = Control room volume (ft )

l t

= Flash time (sec)

Using a first order expansion of the equation for VDC as t goes to zero, the maximum concentration inside the control room can be readily obtained:

3 VDC = M0*ADC*FCR/VCR/60 (gm/m )

The total mass of the liquid can be calculated as follows:

MO. = Q*QF*SG*3785.422 gm where Qg = Storage quantity (gal) -

QF = Volume fraction ofliquid or weight fraction of solid SG = Specific gravity (gm/cc) i i

(02) Explosion and Flammability Limits:

Comparison of the maximum concentration of the relevant toxic chemical concentration inside i

the control room should yield a limiting value with which to compare against the explosion and flammability limits.

n

r <

. CA04561 Rev.0 Page 14

10. CALCULATIONS The chemical concentradons inside the control room for a chemical spill in the tank farm is calculated' via EXCEL spreadsheets captured in the following attachments using the methodology of Section 9:

Attachment D:

100% Liquid Nitrogen for Current Control Room Configuration Attachment E:

100% Liquid Nitrogen for Modified Control Room Configuration see 4

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CA04561 Rev.0 Page 15

11. DOCUMENTATION OF COMPUTER CODES This work employed the ARCON96 computer code, which was verified, benchmarked, and I

l documented in Ref.B10. The installation is documented in Ref.B15. ARCON96 imalements a l

computational model for calculating atmospheric dispersion coefficients (X/Q's) in tie vicinity ofbuildings.

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o CA04561 Rev.0 Page 16

12. RESULTS

' CCNPP stores liquid nitrogen in the 11300 gal stainless steel storage tank located in the tank

- farm. The chemical habitability of the control room after a chemical release involving liquid nitrogen was determined based on in-house dispersion calculations and toxicity determinations for the current control room configuration with the inleakage points at the control room inlet and i

. exhaust dampers and for the modified control room configuration with the inleakage points at the west road inlet plenum (Refs.3-4). Results indicate that liquid nitrogen can be stored in the 11300 gal stainless steel storage tank located in the tank farm without constituting a toxicological or fire hazard to the control room following a worst case accident for both the current and modified control room configurations.

]

The results of the toxicity calculations for liquid nitrogen are as follows:

Peak Concentration (% v/v)

Tank Farm Current Configuration No Recirculation 0.48 Modified Configuration With Recirculat:an 0.12 Toxicity Limit (Asphyx) 15.00 i

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L CA04561 Rev.0 Page 17

13. CONCLUSIdNS

. Under the current and modified configurations, the peak control room concentrations under worst case conditions are less than the asphyxiation toxicity limit, defined as the amount of asphyxiant required to reduce the oxygen level to that at one mile of altitude (the altitude of Denver, Colorado). Nitrogen will not pose a flammability or explosion hazard in the control room, since nitrogen gas is nonflammable per Refs.5 and 9.

The current calculation incor mrates many assumptions which make these results conservative.

(1) An asphyxiation toxicity. imit was utilized, defined as the amount of asphyxiant required to reduce the oxygen level to that at one mile of altitude (the altitude of Denver, Colorado). The regulatory requirements of Ref.2 dictate a maximum concentration limit that could be tolerated for 2 minutes without physical incapacitation of an average human.

(2) For the current configuration the maximum control room intake flowrate of 8300 cfm is utilized. This value is twice the normal operating value (Refs.6-8).

(3) The control roo.m volume conservatively neglects dead spaces in the control room ceiling and

.the volume ofroom A512.

(4) The most conservative methodology is utilized: instant flashing of the entire quantity of Nitrogen.

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CA04561 Rev.0 Page 18 i

14. ATTACHMENTS ATTACHMENT A DATA FOR NITROGEN i

i I

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CA04561 REV 0 py NITROGEN FLUORIDE OXIDE NGSS00 2443 NGP500 CAS:7727 37-9 HR: 1 NGR000 NITROGEN HR: 3 HITROGEN CHLORIDE D! FLUORIDE DOT: UN 1066/UN 1977 mf: CIF,N mw: 87A6 mf: N, mw: 28.02 SAFETY PROFILE: Very unstable. Use caution in han.

PROP: Colorfess, odorless, very stable, nonflammable dling.

gas; generally unreactive; colorless liquid or cubic crystals at low temp. Mp: -210.0', d: 1.2506 g/L @ 0*, d (liquid): 0.808 g/cm'@ -195.8'. Condenses to a liquid.

NGR500 CAS:10102-44-0 HR: 3 Sitly sol in water; sol in liquid ammonia, alc.

NR EN DIOX E i SYNS: NITROGEN, compressed (UN 1066) (DdT) O NITROGEN, re.

frigersted liquid (cryogenic liquid) (UN 1977) (dot) O NITROGEN PROP: Brown gas or colorless solid to yellow liquid; frritating odor. Reacts with H,0 giving HNO,+ NO. Mp:

G ^5

-9.3* (yellow liquid), bp: 21* (red brown gas with CONSENSUS REPORTS: Reported in EPA TSCA dec mp), d: 1 A91 @ 0*, vap press: 400 mm @ 80'.

Inventory.

Liquid below 21.15*. Sol in concentrated sulfuric acid, nitric acid. Corrosive to steel when wet.

DOT CLASSIFICATION: 2.2; Label: Nonflammable Gas SYNS: AZOTE (FRENCH) O AzoTo (ITALIAN) O NITRITo O NI-TRoGEN PEROXIDE D RCRA WASTE NUMBER P078 O sTICKsToFF.

SAFETY PROFILE: Low toxicity. In high concentrationa DioxtD (GERMAN) O sT!KsYoFD!oxYDE (DUTCH) it is a simple asphyxiant. The release of nitrogen from solution in the blood, with formation of small bubbles, TOXICITY DATA wlTH REFERENCE is the cause of most of the symptorns and changes found mmo sat 6 ppm MUREAV 156.119.84 in compressed air illness (caisson disease). It is a sce ham:Ing 5 ppm /10M C MUREAV 89,303.81 narcotic at high concentration and high pressure. Both ihl mus TDLo:22 ppm (female 7-18D post): REP the narcotic effects and the bends are hazards of compressed air atmospheres such as found in underwa-ihl ra TC 8 p8/m'/24H (female 122D ter diving. Nonflammable gas. Can react violently with post):TER GISAAA 42(12).22,U

]

lithium, neodymium, titanium under the proper condi.

Ihl-hmn LCLo:200 ppm /IM AoHYA317,159,74 tions. See also ARGON.

ihl man TClo:6200 ppb /10M:PUL KEKHA717,337.68 ihl man TClo:90 ppm /40M:PUL JocMA7 8.301,66 l

ihl rat LC50:88 ppm /4H AMIHBC 10,418.54 NGQ500 CAS:10025-85-1 HR: 3 ihl mus LC50:1000 ppm /10M JcToDH 4.246,n NITROGEN CHLORIDE lhl-dog LClo:123 mg/m5 TxAPA9 9,160,66 mf: Cl,N mw: 120.37 ihl mky LClo:123 mg/m'/8H TxAPA9 9.160,66 ihl rbt LC50:315 ppm /15M AmAAP 23.457,62 PROP: Very unstable, volatile, yellowish oil or rhombic ihl.gpg LC50:30 ppm /1H AEmAU 10,220,65 crystals; pungent odor. Mp: <-40', explodes above 60

b 1,, d: 1.653, vap press: 150 mm @ 20. Sol in CCl.,

CONSENSUS REPORTS: Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

OSHA PEL: STEL 1 ppm SYNS: AGENE O CHLORINE NI~ TIDE D NITROGEN TRICHLo-RIDE D NITROGEN TRICHLORIDE (dot) O TRICHLoRAMINE O ACGlH TLV: TWA 3 ppm; STEL 5 ppm TRICHLoRINE NITR!DE DFG MAK: 5 ppm (9 mg/m$)

NIOSH REL: CL (Oxides of Nitregen) 1 ppm / ISM TOXICITY DATA wiTH REFERENCE SAFETY PROFILE: Experimental poison by inhalation.

ihl rat LC50:112 ppm /1H AmAAP 44.145,83 Moderately toxic to humans by inhalation. An experi-mental teratogen. Other experimental reproductive ef.

DOT CLASS %ICATION: Forbidden fects. Human systemic effects by inhalation: pulmonary vascular resistance changes, cough, dyspnea, and other SAFETY PROFILE: Moderately toxic by inhalation. An pulmonary changes. Mutation data reported. Violent irritant to the eyes, skin, mucous membranes, and a reaction with cyclohexane; F,; formaldehyde and alco-systemic central nervous system irritant. An explosive hols; nitrobenzene; petroleum; toluene. When heated to sensitive to impact, light, and ultrasound. The solid decomposition it emits toxic fumes of NO,. See also explodes on melting. The liquid explodes above 60*C.

NITRIC OXIDE.

p N

deco si lon s i i ed by contact w th c neen ate i For occupational chemical analysis use OSHA: #ID-109 ammonia, arsenic, dinitrogen tetraoxide, hydrogen sul.

r NIOSH: Nitrogen Dioxide, 6700.

fide, hydrogen trisulfide, nitrogen oxide, organic mat.

ter, ozone, phosphine, phosphorus, potassium cyanide, NGS500 CAS:13847-65-9 HR: 3 potassium hydroxide solutions, selenium, hydrogen chloride, hydrogen fluoride, hydrogen bromide, hydro-NITROGEN FLUORIDE OX1DE gen iodide. Mixtures with chlorine + hydrogen are mf: F,NO mw: 87.01 potentially explosive. Upon decomposition it emits PROP: Colorless gas. Strong oxidizing agent. Stable in toxic fumes of Cl and NO,. See also CHLORIDES.

glass. Resistant to hydrolysis. Mp: -160*, bp: -87*.

e e

~

NITROGEN CA04561 REV 0 NXX cnet gp 8'"'"*"8'"*"'""

ese h

Dennees M""**"'

4. fint MAZARDS te. HAZAAD AS$[11M[NT COOL

~

s.l Fessa memt Nat gewere :

(See Nesne '

Nonshoems ennuwe**e8 eas)

ACOfG sJ riammews unne m An: Nei perenere SJ phe Estmpdehmg Agents $881 pertient 8.4 Phe EsempAsung Agonen het to be Avad eersect och heat Weed 844 perense II. h4ZARD CLAS$1FICAT1045 s.s speeter Naamres et Cemesseen

% gg p.,gn,,g 11.0 Cees et Feeeral RepAmeens:

4J 6ehavier b FWu Coreasure may emplode

%wnaba pas evien emeted.

9IJ 0iA8 Neawg Roems per tue weier LF Iyemen T.

_ Not perwent Teenapertseen Nas teios 4.8 Easenteel Nasert Nel partnant tIJ IIPPA Naserd Closemcement 6.9 Denmg Reim Net poenug Category ClaseNieellen ce Aessee Fi mo tesegrain.

Neenh Naws low..

s Osts not esseabes Flanwnsadny (Redi..

O Fire t.11 stessmeewete As to Fuel Reese meecmay (veamos _

,o o,,,,,,,,,,,,,,,

s.13 Flame Temperetam Dats and swesebu CALL POR MEDICAL AaD.

I. CNEMICAL MACTIVffY VAPO 81 f.t Aseseway uneh weten Nest et meest we

.i.e.,

zeeera me. - -

see.,

e. - - n e.m er emes of -

72 hengeway mem Comunen Motortmem No UQue ehensosi ses: sort Lee tangenswo veut emme Desens.

may esimo tnisonnes a sieher end Ften enereed Wees esen poenly of seier piesks DO NOT Mug AFtECTED AHEAS s )Sur$

FJ 9tmessy Disreis Transpwt Sasade FJ Naisnammg Agones ter Agnes and I

Causeen:Nel peranem FJ pesymertoness seal permiere ra teamer se r.

8 del porttent ff Holy Ases (Reestant to produstk Data not eueamme 11 PIfY1EAL AND CHEkiCAL Pa0P[2 TIES Not harned to assac alt 111 phyesoal Beste et 18*C med 1 e6m Water Gas tu en asma., weishe 3eJ PoHution

'8'

** **** * ' '*"rC - rrru

-alurF - -tea 114 Peseum puht s

L ktsreast TO DesCMAast

2. LASEL L WATER POLLim0ft tia Csemeni 1

ese amere e me s.s in a es=>

u Censwve u A se To ari

-awF. -1 rre. mix Remmel ecosse BJ Casam 3 tenne 114 Catesel psensure n,

SJ weemtoolfedelly:None des pan 33J see 3 40 um/m*

82 DieseglealOxygen Demand 91003 117 spessee theueiy:

sene eJo? et -teerC cond) 4.4 peed Cham

• Poesnest 13J Laced Sertmas Tensters New SJ ernes/em = OJe3 N/m W -terC

1. CHEulCAL DtlisalAT10fl5

4. 041ERVA8LE CHAAACTEtisTICS u - C.mp

-, I a u ph,s s e are.p

,tt...pw a

.p

~.J La perneem tto neonted gas till Asse et SpeeWie seasse es vapor geseg SJ th00/WII Despisees 3/1977 4J Ceder: Caiortsee to tore pesa.

1 Jest Le DDT e staa 1977 SJ Oeer Boone 1113 Laewd Nest et VJ

&8 CAS Registy $1mJ III7474 90 OEMb

• 03 seI#$e 32 210' J/kg 1L18 times of Ceneessess Nai perenere 1114 $4esi et Desempeemeer seat portrent 1 MtALTN MAZARDS

8. $NipPtfe4 INFORWATION ttts Steet av senseen Not powent El peressimi protesqHe E -..

Geneqy posses er teos ePesst mmdated glamm tong emeen 3.g teresse et pwery: se 44 in 11JB leest et Fuutom 9 I$ reUg tLle Steet of T_,

_ Not partnere Deunes earn mAnde base er over fegrbenp shese to shed endled Sead tem 4lmilaried 9J Sternes Temperstwo -330'F breetwg spearets where meAlques er e passenL ggje uneemg yesue com nm,,seum, 9J triert A tympemme peesume

--es Weissean een emme espnyeetorL f eenosphere eues not

.. No ressemore ggJy peng yep, p,eeews Dass as avasapes EJ s

3.4 y,iei, open scream emygert esm ^_ __

- n er even seem een moeult Cented of toad edWi skan y eyes abusse tushAG hism SJ T.

_ et Egesure pet 4LATOp* esmove to tesh er apply wakael sesgressi f treseen0 has empped, eeE physcurs EYES. Den Ier Demente bene emmed by a ad SKpt test for m

teases, esap m teewerin eener.

Le Tteenhead Laudi Vetus Nurkende M short Twie anselmeen Lauses: seat powiwe 64 Teasessy by bigenesse Idas perwent LF Lane TessuMy: None EA Vapor gesel treetsnt r.

_ None

&S La st er toes triennt C _ -

Fnisene s

Ett Omar floenhase Nel perweare L11 Elue Wahsm Den not eveameno E

o' 740 JUNE 1985

)

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CA04561 Rev.0 Page 21

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ATTACHMENT B ARCON96 RUNS FOR AUX BLDG ROOF INLET l

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1

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o Program

Title:

ARCON66.

CA04561 REY 0

. Developed For U.S Nuclear Regulatory Commission '

office of Nuclear Reactor Regulation P A6E LL

Division of Reactor Program Management Datas-June 25,1997

.11:00 a.m.

)

NRC Contacts:

J. Y. Lee Phones (301) 415 1080

.e-mails $yllenre. gov J. J. Hayes Phone (301) 415 3167 e-maili $jhenrc. gov

' L. A Brown.

Phones (301) 415 1232 e-mails lab 2enrc. gov Code Developers J. V, Ramsdell Phones (609) 372 6316 e-mail j_ransdellepnl. gov Cod 3 Documentation NUREG/CR-6331 Rev.-1 The program was prepared for an agency of hhe United States Government. Neither the United States Government nor any agency thereof, nor any of their employees,' makes any warranty, expressed or implied,. or assumes any legal li:.bility or responsibilities for any third party's use, or the results of such ujo, of any portion of this program or represents that its use by such third

. party would not infringe privately owned rights.

-Program Run 8/26/1998 at 08:36:30

.-******* ARCON INPUT **********

Number of Meteorological Data Files 3

=

Meteorological Data File Names CC1991. MET CC1992. MET CC1993. NET Height of lower wind instnunent (m)

=

10.0 Height of upper wind instrument (m) 60.0

=

Eind speeds entered as meters /second i

Ground-level release-Release height (m)

.0

=

Building Area (m*2]

=

1155.0-Cffluent vertical velocity (m/s)

=

.00 Vent or stack flow (m*3/s)'

.00

=

Vent or stack radius (m) 36.89

=

Direction. int-ake to source (deg) 339

=

Eind direction sector width (deg)

=

90 Wind direction window (deg)

= 294 - 024 Distence to intake (m) 141.1

=

Intake height (m)

=

15.6 Terrain elevation difference (m)

=

.0-Output file names CMTF3CR.out OITF3CR.jfd g Minimum Wind Speed (m/s)

.5

=

Surface roughness length (m)

.10

=

Sector averaging constant 4.0

=

Initial value of sigma y 17.16

=

Initial value of sigma a

.00

=

Espanded output for code testing not selected

)

Total number of hours of data processed = 26307 Hours of missing data 416

=

Hours direction in window 7383

=

0 I

-- Hours elevated plume w/ dir. in window

=

Hours of calm winds 495

=

18013 j

Hours direction not in window or calm-

' DISTRIBUTION StM4ARY DATA BY AVERAGING INTERVAL AVF*R. PER.

1 2

4

. 8

' 12.

24 96 168 360 720 UPPER LIM.

1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03

.1D8 LIM.

1. 00E 1.00E 07.

1.00E-07 1.00E-07 1.00E-07 1.00E-07

-1.00E-07 1.00E-07 1.00E-07, 1.00E-07 L

i

e o

- ABOVE RANGE 0.

'O.

O.

O.

O.

O.

0.

O.

O.

D.

235 RANGE 7878 9361.

11227, 13690.

15731.

19609, 24938.

25103.

25169.

24910.

BELott RANGE 0

O.

D.

O.

O.

O.

0.

O.

O.

O.

EERO 18013.

16464, 14480.

11796.

.9937.

5975.

267 1.

0.

O.

'JOTAL X/Os

'25891.

25825.

25707.

25486.

25668.

25584.

25205.

25104.

25169.

24910.

% N091 EERO 30.43

^36.25 43.67 53.72 61.29

. 76.65 98.94 100.00 100.00 100.00 l

95th PERCENTILE 1/Q VALUES 2.65E-04 2.58E-04 2.47E-04 2.27E-04 1.87 -04 1.42E-04 8.72E-05 7.72E-05 6.73E-05 6.07E-05

.95% X/Q for standard averaging intervals 0 to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 2.65E-04 CA04561 REV0 2 to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 2.14E-04 8 to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 9.89E-05 1 to 4 days 6.92E 05 pag {

['2 4 to 30 days -

5.66E-05 iM

?

HOURLY VALUE RANGE MAK I/O MIN X/Q CENTERL1NE

-3.50E-04 3.10E-05 SECTOR-AVERAGE 2.20E-04 1.94E-05 NORMAL PROGRAM COMPLETION I

+

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CA04561 Rev.0 Page 24 ATTACHMENT C ARCON96 RUNS FOR WEST ROAD INLET PLENUM

(

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e s

Program Tit 13: ARCON96.

Dev;1oped For U.S. Nuclear Regulatory Commission CA04561 REV0 office of Nuclesr Reactor Regulation Division of Reactor Program Management P A 6E b' Data M a 2f, 1997 11:00 a.m.

)

/

NRC Contacts:

J. Y. Lee Phones (301) 415 1080 e-mails jyllenre. gov J. J. Hayes Phone (301) 415 3167 e-maili jjhenrc. gov L. A Brown Phone: (301) 415 1232 e-mails lab 2enre. gov Code Developer J. V. Ramsdell Phones (509) 372 6316 e-mail: j_ramsdellepnl. gov Code Documentation: NUREG/CR-6331 Rev. 1 The program was prepared for an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal lidility or responsibilities for any third party's use, or the results of such u w, of any portion of this program or represents that its use by such third party would not infringe privately owned rights.

Program kun 8/26/1998 at 08:37:00

• • • • • • • ARCON INPUT **********

Number of Meteorological Data Files 3

=

Meteorological Data File Names CC1991. MET CC1992. MET CC1993. MET Height of lower wind instrument (m) 10.0

=

Height of upper wind instrument (m) 60.0

=

Wind speeds entered as meters /second Ground-level release Release height (m)

=

.0 Building Area (m*2) 155.0

=

Effluent vertical velocity (m/s)

.00

=

V;nt or stack flow (m'3/s)

.00

=

Vint or stack radius (m)

.J.89

=

Direction iptake to source (deg) 358

=

Wind direction sector width (deg) 90

=

Wind direction window (deg) 313 - 043

=

Distance to intake (m) 182.2

=

Intake height (m) 9.1

=

T;rrain elevation difference (m)

.0

=

Output file names CHTF3WR.out CHTF3WR.jfd

\\

Minimum Wind Speed (m/s)

.5

=

Surface roughness length (m)

.10

=

S;ctor aversging constant 4.0

=

Initial value of sigma y 17.16

=

Initial value of sigma z

=

.00 Expanded output for code testing not selected Tttal number of hours of data processed = 26307 Hours of missing data 416

=

Hours direction in window 7453

=

Hours elevated plume w/ dir, in window

=

0 Hours of calm winds 495

=

Hours direction not in window or calm 17943

=

DISTRIBUTION

SUMMARY

DATA BY AVERACING INTERVAL AVER. PER, 1

2 4

8 12 24 96 168 360 120 UPPER LIM.

1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 1.00E-03 IOf LIM.

1.00E-07 1.00E-07 1.00E-07 1.00E-07 1.00E-07 1.00E-07 1.00E-07 1.00E-07 1.00E-07 1.00E-07

e e

ABOVE RANGE 0.

O.

O.

O.

O.

O.

O.

D.

O.

O.

IN RANGE 7948.

9433.

11303.

13804.

15889.

19671.

25021.

25101.

25169.

24910.

BEIDt RANGE 0.

O.

O.

O.

O.

O.

O.

D.

D.

O.

EERO 17943.

16392.

14404.

11682.

9779.

5913, 184.

3.

O.

D.

TOTAL X/Qs 25891.

25825.

25707.

25486.

25668.

25584.

25205.

25104.

25169, 24910.

t NON EERO 30.70 36.53 43.97 b4.16 61.90 76.89 99.27 99.99 100.00 100.00 95th PERCENTILE X/Q VALUES 1.75E 04 1.71E-04 1.63E-04 1.50E-04 / 1.25E-04 9.37E-05 6.13E-05 5.29E-05 4.64E-05 4.19E-05 954 X/Q for standard averaging intervals CA04561 REV 0 0 to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 1.75E-04 2 to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 1.41E-04 PA6E 24 8 to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 6.57E-05 1 to 4 days 5.04E-05 4 to 30 days 3.90E-05 HOURLY VALUE RANGE MAX X/O MIN X/Q CENTERLINE 2.36E-04 2.12E-05 SECTOR-AVERAGE 1.48E-04 1.33E-05 NORMAL PROGRAM COMPLETION l

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I-CA04561 Rev.0

Page 27

' ATTACHMENT D EXCEL SPREADSHEET NITROGEN - AUX BLDG ROOF INLET I

e 4

\\

NITROGEN-CR CA04561 REV0 PAGE 28 NITROGEN CHEMICAL N2 TLV (PPM)

TLV i

ODOR THRESHOLD (PPM)

OT STORAGE QTY (GAL)

Q 11300 i

STORAGE PURITY (FRACTION)

QF 1

SPECIFIC GRAVITY (GM/CC)

SG 0.807 MOLECULAR WT (GM/ MOLE)

MB 28 v0L-CR (CF)

VCR 234157 Q-CR (CFM)

FCR 8300 MASS DENSI'IY AIR (GM/CC)

RHOA 1.21E-03 INITIAL MASS (GM)

MO Q*QF*SG*(3785.422 CC/ GAL) 3.4520E+07 VOLUME (M3)

VO Q*QF'(3.785422E-3 M3/ GAL) =

4.2775E+01 SPILL RADIUS INITIAL (M)

RO (V0/PI)^0.33333 =.

2.3879E+00 SPlLL AREA INITIAL (M2)

AO Pl*RO^2 =

1.7913E+01 SPILL AREA FINAL (M2)

AF VO/0.01 =

4.2775E+03 DELTA SPlLL AREA (M2/SEC)

DA SQRT(4 *Pl*9.81 *VO*(SG-RHOA)/SG))

7.2562E+01 i

TIME TO MAX AREA (SEC) tA (AF-AO)/DA =

5.8703E+01 TF ADC (S/M3)

ADC 2.65E-04 VAPOR DEN INSIDE CR(GM/M3)

VDC=

MO*ADC*FCRNCR/60.

PPM =

(24500/MB)*VD j

CASES ADC VDC PPM

%-v/v 2.65E-04 5.40E+00 4.73E+03 0.4729 4

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. CA04561 Rev.0 Page 29 ATTACHMENT E

/

EXCEL SPREADSHFFT NITROGEN - WEST ROAD INLET i

\\

i

NITROGEN-WR CA04561 REVD P A8E 30 NITROGEN CHEMICAL N2 TLV (PPM)

TLV ODOR THRESHOLD (PPM)

OT STORAGE QTY (GAL)

Q 11300 STORAGE PURITY (FRACTION)

QF 1

SPECIFIC GRAVITY (GM/CC)

SG 0.807 MOLECULAR WT(GM/ MOLE)

MB 28 VOL-CR (CF)

VCR 234157 Q-CR (CFM)

FCR

-3000 MASS DENSITY AIR (GM/CC)

RHOA 1.21 E-03 INITIAL MASS (GM)-

MO Q*QF*SG*(3785.422 CC/ GAL) 3.4520E+07 VOLUME (M3)

VO Q*QF'(3.785422E-3 M3/ GAL) =

4.2775E+01 SPILL RADIUS INITIAL (M)

RO (V0/PI)^0.33333 =

2.3879E+00 SPILL AREA INITIAL (M2)

.AO Pl*RO^2 =

1.7913E+01 SPILL AREA FINAL (M2)

AF VO/0.01 =

4.2775E+03 DELTA SPILL AREA (M2/SEC)

DA SQ RT(4 *Pl*9.81 *VO *(S G-R H OA)/SG))

7.2562E+01 TIME TO MAX AREA (SEC) tA (AF-AO)/DA =

5.8703E+01 TF ADC (S/M3) -

-ADC 1.75E-04 VAPOR DEN INSIDE CR(GM/M3)

VDC=

MO*ADC*FCRNCR/60.

]

PPM =

(24500/MB)*VD j

CASES ADC VDC PPM

%-v/v 1.75E-04 1.29E+00 1.13E+03 0.1129 1

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CA04561 Rev.0 Page 31 I

ATTACHMENT)F SYSTEM DESCRIPTION # 74 l

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C A04561 REV O PAGE 3L-THIS DOCUMENT IS FOR INSTRUCTION AND INFORMATION ONLY.

IT IS NOT TO BE USED FOR PLANT OPERATIONS.

NITROGEN SYSTEM SYSTEM DESCRIFFION NO. 74 REVISION 0 Baltimore Electric and Gas Company Calvert Cliffs Nuclear Power Plant Prepared By:

Date: sa[A_ /J System Engineer Reviewed By:

Date: /t/#M9 7

~

Sysfem Manager / Work Group Leader Approved By:

Date: 1+f7 Principll EnginM PLEASE DIRECT TO

• LEE SUPERVISOR-OPERATIONS TRAINING OR THE SYSTEM ENGINEER,ANY RECOMMENDATIONS FOR IMPROVEMENTS TO THIS SYSTEM DESCRIPTION.

I

CA04561 REV0 PA6E.M j

TABLE OF CONTENTS 4

i i

1.0 SYSTEM PURPOSE I

....................................................................... 1 2.0 GENERAL DESCRIFFION..........................................................

3.0 DETAILED DESCRIPTION...........................................................

3.1 Liquid Nitrogen Storage Unit.......................................................... 2 3.1.1 S torage Tank..................................................................... 2 3.1.2 Nitrogen Vaporization.......................................................... 3 3.1.2.1 Ambient Vaporizer................................................ 3

)

3.1.2.2 Electric Vaporizer................................................. 3 3.2 Alternate Nitrogen Supply.............................................................. 3 3.3 Nitrogen Distribution Header.......................................................... 4

{

3.3.1 Condensate Storage Sparging And Blanketing System..................... 4 3.3.2 Turbine Building Header....................................................... 4 3.3.2.1 N2 To Instrument Air Back Up................................. 4

~

3.3.2.2 Auxiliary Boilers.................................................. 5 3.3.2.3 Nitrogen Generating S ystem..................................... 5 3.3.2.4 Auxiliary Feed Water Air Accumulators...................... 5 3.3.2.5.

High And low Pressure Feed Water Heaters................. 5 3.3.2.6 Steam Generator Feed Pumps................................... 5 3.3.2.7 Main Generator.................................................... 5

3. 3. 3 Auxiliary Building Header..................................................... 6 3.3.3.1 Electrical Penetration Canisters................................. 6 3.3.3.2 Main Steam Isolation Valve Actuator N Compressor................................ 2

....................... 6 i

3.3.3.3 Safety Inj ection Tanks............................................ 6 3.3.3.4 Reactor Coolant Drain Tank..................................... 7 3.3.3.5 Steam Generators.................................................. 7 3.3.3.6 Pressurizer Quench Tsnk........................................ 7 3.3.3.7 Volume Control Tank (VCT)................................... 7 3.3.3.8 Degassifier......................................................... 7 3.3.3.9 Waste Gas Surge Tank........................................... 8 1

3.3.3.10 lon Exchangers.................................................... 8 3.3.3.11 Coolant Waste Evaporators...................................... 8 i

3.3.3.12 Post Loci Sampling System...................................... 8 3.3.3.13 Rad Chem Gas Storage Lockers................................. 8 I

i

CA04581 REVO P A6E fj/

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LIST OF TABLES TABLE 5-1 S YSTEM CHARACTERISTICS..................................................... 10 TABLE 5-2 COMPONENTS SUPPLIED BY NITROGEN..................................... 11 TABLE 5-3 PROBLEMS AND POSSIBLE CAUS ES........................................... 12 TABLE 6-1 NITROGEN G A S S YSTEM REFERENCES....................................... 15 11

CA04581 REVD P ASE J[

CALVERT CLIFFS NUCLEAR POWER PLANT SYSTEM DESCRIPTION #74

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NITROGEN SYSTEM 1.0 SYSTEM PURPQSE The purpose of the Nitrogen Gas System is to store and distribute nitrogen (N ) gas to 2

various plant components throughout tne turbine building, auxiliary building and the tank farm.

2.0 GENERAL DESCRIPTION The Nitrogen (N ) system can be divided into two general subsystems, the storage 2

system and the distribution header. The storage system consists of an insulated storage tank which is kept pressurized by an ambient vaporizer. An electric vaporizer is installed for use in the event the ambient vaporizer is out of service. The storage tank is kept under pressure to maintain the nitrogen in a liquid state.

The distribution header runs throughout the plant, going to a variety of components, ranging from the main steam isolation valves to the auxillary boilers, N is used in virtually 2

all storage tanks and water bearing vessels such as the volume control tank and the steam generators.

Nitrogen, like all cryogenic fluids, has a very low boiling point (-3200 F) and in its liquid form can cause severe frostbite if it comes in contact with exposed parts of the human body. Additionally, while it makes up around 70% of the air we breath, NITROGEN CAN NOT SUSTAIN LIFE on its own (without OXYGEN). Therefore, care must be taken whenever working in an area (or component) where N2 is present to ensure the air is constantly monitored for haMtability.

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3.0 DETATTrn DESCRIPTION

• All setnoints elven in this deerfotion am anorovimate 3.1 LIOUID NITROGEN STORAGE UNIT Q1.1 STORAGE TANK The storage tank is an 11,301 ;slon stainless steel tank surrounded by perlite powder jnsulation and a protective outer carbon steel tank. The space between the inner and outer tank is at a vacuum of approximately 28" HG (similar to a " THERMOS" bottle), since heat transfer through a vacuum is much lower than through air. Liquid nitrogen is brought on site by a vendor's truck, and put directly into the storage tank via the fill connection. The fill line is protected from over pressure conditions by a relief valve,0-RV-6354, set for ~450 PSI. Over pressure protection for the tank is provided by relief valves and rupture disks. The tank relief valves, located in the outlet piping of the pressure build-up coil are arranged so that either RV-6358 or RV-6359 can be selected on service by a three way valve. These relief valves are set at ~285 PSIG. The two rupture disks are mounted in the same piping run, and are designed to burst at ~315 PSIG. Local indication of pressure and level in the storage tank is provided.

3he level indicator, LI-6300, indicates in inches of water pressure (one inch of water equals

'55 gallons of liquid nitrogen.). L1-6300 covers a range of 0 to 400 inches, where any reading between 90 and 210 inches is normal. Tank pressure is indicated by PI-6367, with a grange of 0 to 800 PSIG (normal tank pressure is about 240 PSIG).

Nitrogen pressure in the storage tank is maintained by a pressure build-up coil. Liquid nitrogen exits the storage tank through manual throttle valve 0-N -407 to pressure control 2

valves PCV-6343 or 6344. The nitrogen the enters the pressure build-up coils, where the nitrogen absorbs heat from the atmosphere, vaporizing and pressurizing the nitrogen in the coil. This gaseous nitrogen is then directed back to the top of the storage tank, through a pressure control valve (PCV-6342) thereby keeping the tank contents under pressure, and thus in a liquid state. PCV-6342 is provided with a small manual bypass valve.

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4 CA04561 REVO P A8E 37 3.1.2 NHROGEN VAPORIZATION Nitrogen supply to the vaporizer is taken from the storage tank via a dip-tube at the bottom of the tank, ensuring only liquid is drawn out. This liquid nitrogen is routed to either the ambient or the electric vaporizer which keep the nitrogen header pressure at around 240 PSIG.

3.1.2.1 AMBIENT VAPORIZER The Ambient Vaporizer (constructed of aluminum) absorbs heat from the atmosphere and transmits it to the nitrogen. The ambient vaporizer is of the fin and tube design, with a center tube radiating 8 fins outward for the entire 12 foot length of the tube. The vaporizer has 2 sections of tubes mounted vertically, with each section consisting of 64 tubes. De

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ambient vaporizer is rated at 33,000 SCFM at 500 PSIG. If the ambient vaporizer is isolated or its temperature gets too low (-100*F AT TS-6301), the electric vaporizer (if in automatic) will be energized.

3.1.2.2 ELECTRIC VAPORIZER The Electric Vaporizer is a three stage electric in-line-heater whose purpose is to maintain nitrogen pressure at approximately 240 PSIG. He three sections of heaters cycle on the nitrogen outlet temperature ( 70*F ON/~90*F OFF) with a high temperature cut-off at

'300*F. Each stage consists of 6 individual heaters. Here is a low temperature switch that shuts the outlet solenoid valve if the temperature drops to -20*F, so that liquid nitrogen is not released to the system. The electric vaporizer is powered from 480 VAC BUS 25. The vaporizer has a local control panel ( located next to the N storage tank) that contains a local 2

breaker, hand switch, power availability light, heater on light, and system temperature controls.

3.2 ALTERNATE NITROGEN SUPPLY The N system is equipped with a truck supply connection located near the north intake 2

stairwell 45' elevation, so that a truck can be lined up to the system to act as its supply, in the event the storage system is inoperable or depleted due to excessive use. A manual isolation valve (0- N -102) is situated just downstrean of the truck connecti6n.

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CA04561 REV0

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PAGE 38 3.3 NITROGEN DISTRIBUTION HEADER 3.3.1 CONDENSATE STORAGE SPARGING AND BLANKETING SYSTEM The nitrogen gas system supplies N2 to the three condensate storage tanks and to the demineralized water storage tank. This N is used for blanketing and/or sparging the water in 2

the tanks. This is done to keep oxygen out of the tanks, thus reducing corrosion, both in the tanks themselves and in the systems they supply with water. All three condensate storage tanks and the demineralized water storage tank are blanketed with N, while only 12 2

condensate storage and the demineralized water storage tanks have sparging tubes, which bubble N up from the bottom of the tank. The N to the sparging and blanketing system is 2

2 supplied via pressure control valves, PCV-6300 or 6301, which tap off the distribution header just after the header leaves the N storage tank and before it goes through the pipe tunnel into 2

the turbine building. The PCVs lower the N2 Pressure to 25 PSIG. Downstream of the PCVs there is a pressure switch and a flow alarm which alerts the control room to any loss of N to the sparging and blanketing systems. The N2 Pressure is further reduced at each of the 2

water storage tanks by regulators that bring the N Pressure to 1 1/2 " H 0, which is about 2

2

.054 PSIG. The tank vents and overflows are sealed with rupture disks, preventing the escape of N. These rupture disks burst at ~3 PSIG differential pressure. Condensate storage tanks 2

11 and 21, in addition to the demineralized water storage tank, have two overpressure-vacuum breaker relief valves for protection from damage caused by either a vr.cuum or an overpressure condition. 12 condensate storage tank has a six inch vacuum breaker and two glycol charged loop seals in conjunction with a vent valve for overpressure protection.

3.3.2 TURBINE BUILDING HEADER The nitrogen header proceeds from the storage unit in the tank farm to the turbine building through the pipe tunnel at the north end of the turbine building. Nitrogen is supplied to the turbine building for placing the feed water heaters, auxilary boilers, main generators and the steam generator feed pumps in long term lay-up. N i 2 s also used as an alternate way of charging the auxilary feed pump air accumulators and provisions have been made to have the N2 System act as a back up to the instrument air system.

3.3.2.1 Ng TO INSTRUMENT AIR BACK UP (NOT CURRENTLY IN SERVICE )

N2 was planned as a backup to the Instmment Air System in the event of a loss of instrument air. This line taps off the N header just after it enters the turbine building from the 2

tank farm, through manual valve O-N -445, located on the 12' turbine building, northeast 2

corner. In the event of a loss of instrument air, control valves 1 (2) -PCV-6301 were to open allowing N2 to pressurize the header. This system is installed but is not in servio:.

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3.3.2.2 AUXILIARY BOILERS

~ N for blanketing the Auxiliary Boilers is supplied through a pressure control valve (1-2 PCV-6298) at ~5 PSIG. This valve is located in the auxiliary boiler room. The N then must 2

pass through a spool piece and the normal vent into the boilers.

3.3.2.3 NITROGEN GENERATING SYSTEM The N Generating System is retired in place.

2 3.3.2.4 AUXILIARY FEED WATER AIR ACCUMULATORS Nitrogen serves as a back up way of charging the accumulators in the event of loss of motive air to the amplifier. Charging the accumulators with N is accomplished manually with 2

valves 0-N -104 (0-N -106) and 0-N -105 (0-N -107) located in the service water pump 2

2 2

2 rooms.

3.3.2.5.

HIGH AND IDW PRESSURE FEED WATER HEATERS N2 to the Feed Water Heaters is supplied through a pressure control valve,1-PCV-6299 (2-PCV-6299), at a pressure of ~5 PSIG. The nitrogen to the individual feed water heaters is supplied through removable flexible hoses to both the shell and tube sides of 13 thru 16 (23 thru 26) feed water heaters, while it is only supplied to the tube sides of feed water heaters 11 and 12'(21 and 22). Unit-l's control valve is located north of the Unit-1 service water pump room door. Unit-2's control valve is located outside,of the Unit-2 auxiliary feed pump room door. The connection for the steam generator feed pumps taps off downstream of the feed water heaters on both units.

3.3.2.6 STEAM GENERA'IUR FEED PUMPS The nitrogen for use in the Steam Generator Feed Pumps is supplied from the same header that supplies the feed water heaters, through a flexible hose at each pump.

i 3.3.2.7 MAIN GENERA *IDR N is used in the Main Generator for long term lay-up to keep air out and provide a 2

clean and inert atmosphere. Since no permanent piping exists between the generator and the i

N2 system, temporary hoses must be installed between the N header and the generator gas 2

system. On Unit I the temporary hose is connected at the N low point drain (0-N -258) next 2

2 to the turbine building operators booth and runs to the generator gas system. On Unit 2 the temporary hose connects to one of the feed water heater connections and nms to the generator gas system.

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CA04581 REV0 P A6E Y#

3.3.3 AUXILIARY BUILDING HEADER Nitrogen is used in the auxiliary building for a variety of reasons. Compressed, it is used as the driving force behind the safety injection tanks, as well as the force that shuts the main steam isolation valves. N Is used as a vacuum break for the waste gas surge tank, and as 2

an inert sealing media for the electrical penetration canisters The N header in the auxiliary 2

building is divided (by unit) by valve 0-N -255, which is located in the 5 foot elevation of the 2

auxiliary building, near the elevator.

3.3.3.1 ELECTRICAL PENETRATION CANISTERS N, at ~50 PSIG, is supplied to the canisters, first through pressure control valves 1-2 PCV-6326, 6328 and 2-PCV-6326, 6328 and then a flexible hose with a small compression fitting at the end of it. Individual canisters are charged with N2 through their low pressure alarm switches. The nitrogen is used in these canisters as an inert sealing medium between the containment and the penetration room. The hoses, pressure control valves and pressure switches are located in each 45' electrical penetration room in the auxiliary building 3.3.3.2 MAIN STEAM ISOLATION VALVE ACTUATOR N COMPRESSOR L

The Main Steam Isolation Valves are shut using nitrogen pressure. Since the N2 header pressure is only around 240 PSIG, the N compressor is used to snpress the nitrogen 2

to the pressure required (approximately 2800 PSI) to shut the valve. The N does not shut the 2

valve directly from the N header, but is stored in an accumulator on the top of the valve, for 2

use when necessary. The compressor is driven by plant air.

3.3.3.3 SAFETY INJECTION TANKS The Safety Injection Tanks hold a borated water volume with a 200-250 PSI nitrogen cap on top, which is used to force the borated water into the RCS during accident conditions.

The manual valve (0-N -236 on Unit-1 and 0-N -270 on Unit-2) on this line is located in the 2

2 27' cast penetration room.

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3.3.3.4 REACTOR COOLANT DRAIN TANK Nitrogen is used in the Reactor Coolant Drain Tank to prevent hydrogen from coming out of solution and creating a potentially explosive condition. This N2 is regulated by a pressure control valve (l(2)-PCV-6317), that maintains N2 Pressure to the drain tank at ~2 PSI. This pressure control valve is located in each unit's 27' cast penetration room.

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3.3.3.5 STEAM GENERATORS Nitrogen is used in the Steam Generators for lay-up conditions, to prevent the entry of j

oxygen. The N to the steam generators is regulated at~ 3 PSI by control valve 1(2)-PCV-

]

2 6318 (which is also the control valve for the N to the pressurizer quench tank ). There are 2

flexible hoses in the line down stream of the control valves which connect the N system to the 2

steam generator piping in the containment.

3.3.3.6 PRESSURIZER OUENCI1;fANK Nitrogen is used in the Quench Tank as a purge gas, to prevent the build-up of hydrogen gas to an explosive level. 1(2)-PCV-6318 controls N2 Pressure to the quench tank at

~3 PSI. 1(2)-PCV-6318 is located in the respective units 27' east penetration room.

3.3.3.7 VOLUME CONTROL TANK (VCT)

Nitrogen is used in the VCT for degassification (removal of H and mdioactive gases).

2 The N line leading into the VCT has a flow orifice installed upstream of a manual inlet valve 2

(0-N -250 on Unit-1 and 0-N -256 on Unit-2) which is located in the respective unit's BAST 2

2 room.

3.3.3.8 DdGASSIFIER Nitrogen is used in the Degassifier as a purge gas (removal of H2 gas, etc) and is supplied through 1(2)-PCV-6315 at a pressure of 30 PSIG. Unit-l's pressure control. valve is located outside of 11 degassifier room on the 5' elevation of the auxiliary building, and Unit-2's is located in the 5' auxiliary building valve alley.

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CA04561 REV0 PAGE 9L-3.3.3.9 WASTE GAS SURGE TANK

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N is supplied to the Waste Gas Surge Tank as a purge gas, and also as a means of 2

breaking vacuum in the tank. The N going into the waste gas surge tank is first reduced to 2

~5 PSI by a pressure control valve (0-PCV-6316) before going to either the vacuum breaker or the manual valve used in purging the tank. There is a relief valve in this line that relieves at 50 PSI. The vacuum breaker, 0-PCV-2182, is set to open at ~0 PSIG, protecting the surge tank from damage. The control valves are both located in the 5 foot auxiliary building in the hallway across from the hot tool shop.

3.3.3.10 ION EXCHANGERS N is used in the Ion Exchangers for fluffing the resin beds. The N is supplied to the 2

2 ion exchanger header through pressure control valve 0-PCV-6331 at a pressure of ~20 PSIG.

This valve is located on the 27' of the auxiliary building outside the Unit-1 degassifier filter room. The manual isolations to the pressure control valve are 0-N -584 and 585, located in 2

the Unit-127' penetration room and out side the Unit-1 degassifier filter room, respectively.

3.3.3.11 COOLANT WASTE EVAPORATORS N is used in the Evaporators to break vacuum during system shutdown and blanketing 2

2 s supplied to the evaporator concentrator through two i

during long term lay-up. The N control valves (0-CV-9462/9512 located in the evaporator room) which allow N2 to break the vacuum in the concentrator but prevent the over-pressurization of the vessel by shutting at

~0 PSI. The evaporators are supplied by a common N2 line that taps off the main auxiliary building header upstream of the unit cross-connect valve 0- N -255. The manual 2

isolation for this line is 0-N -343, located outside of U-l's VCT room. This line also has a 2

pressure control valve (0-PCV-6321) in it upstream of the evaporators, limiting N pressure to 2

the evaporators to 100 PSI. This valve is located in the evaporator room.

3.3.3.12 POST LOCI SAMPLING SYSTEM N is used in the Post Loci Sampling System as a means of diluting radioactive gases in 2

The cutout valve for this is 0- N -387, located in the Unit-2 45' west the sample line.

2 penetration room. This line taps off the Unit-2 side of the auxiliary building header only.

3.3.3.13 RAD CHEM STORAGE LOCKERS N. used as a purge gas and test standard.

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O CA04561 REVO PAGE(3 TABLE 5-1 PERTINENT SYSTEM DESIGN CHARACTERISTIQS NITROGEN STORAGE TANK CAPACITY 11,300 GALLONS OPERATING PRESSURE 250-280 PSIG OPERATING TEMPERATURE

-250* F MATERIALS j

INSULATION PERLrrE INNER TANK STAINLESS STEEL OUTER TANK CARBON STEEL l

ELECTRIC VAPORIZER MODEL 2X2TLE50X100KW POWER RATING 100KW MATERIALALUMINUM CAST OPERATING PRESSURE 300 PSIG TEST PRESSURE 375 PSIG AMBIENT VAPORIZER MODEL TF 6410 HF DESIGN WORKING PRESSURE 500 PSIG OPERATING PRESSURE 250-280 PSIG CAPACITY 33,000 SCFM HEATTRANSFER AREA 2688 SQ FEET MATERIAL ALUMINUM WEIGHT 2250 LBS 9

CA04581 REV0 P AGE //

TABLE 5-2 COMPONENTS SUPPLIED WITH NITROGEN CONDENSATE STORAGE TANKS DEMINERALIZED WATER STORAGE TANKS AUXILIARY BOILERS FEEDWATER HEATERS STEAM GENERATOR FEED PUMPS MAIN GENERATOR ELECTRICAL PENETRATION CANNISTERS

{

MSIV N COMPRESSOR 2

SAFETY INJECTION TANKS REACTOR COOLANT DRAIN TANK STEAM GENERATORS

. PRESSURIZER QUENCH TANK VOLUME CONTROL TANK DEGASSIFIER WASTE GAS SURGE TANK ION EXCHANGERS WASTE EVAPORATORS AFW ACCUMULATORS POST LOCI SAMPLE SYSTEM RAD CHEM GAS STORAGE LOCKERS 10

CA04561 REVO PAGE W TABLE 5-3 PROBLEMS AND POSSIBLE CAUSES PROBLEM POSSIBLE CAUSES INNER VESSEL SAFETY POPS

- Excessive tank' pressure

- Faulty safety valve i

INNER VESSEL RUPTURE

- Faulty or corroded disc DISC BLOWS

- Excessive tank Pressure

- Faulty safety valve EXCESSIVE TANK PRESSURE

- Insufficient consumption

- Pressure Buildup regulator set too high.

- Pressure Buildup regulator stuck open.

- Economizer regulator set too high

- Economizer regulator stuck open

- Tank pressure gage wrong TANK PRESSURE TOO LOW

- Pressure buildup manual valve shut.

- Pressure buildup regulator set low

- Pressure buildup regulator stuck closed.

- Economizer regulator set low

- Economizer regulator stuck closed tank; pmssure gage reading wrong.

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CA04581 REVO PAGE Y6 TABLE 5-3 PROBLEMS AND POSSIBLE CAUSES (continued)

PROBLEM POSSIBLE CAUSES HEADER PRESSURE TOO LOW

- Line regulator set too low

- Line regulator faulty

- Tank pressure too low

- Line pressure gage faulty HEADER PRESSURE TOO HIGH

- Line regulator set too high

- Line regulator faulty

- Line pressure gage faulty GAS TEMPERATURE TOO LOW

- Vaporizer inadequate for flow rate CONTENTS GAGE READS

- Leak in gas side pipe TOO HIGH

- Calibration incorrect

- Faulty gage CONTENTS GAGE READS

- By-pass valve not closed TOO LOW

- I2ak in liquid side piping

- Calibration incorrect

- Faulty gage 12

1 CA04561 REVO PAGE 4]

TABLE 5-3 PROBLEMS AND POSSIBLE CAUSES

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(continued)

PROBLEM POSSIBLE CAUSES TANK PRESSURE GAGE

- Shut-off valve closed

- Ie.ak in gage piping

- Faulty gage LINE SAFETY POPS

- Liquid or very cold gas

- trapped between closed valves

• (nothing wrong safety designed to protect pipe under these conditions)

- Faulty safety

• For additional Information see TECHNICAL MANUAL # 15-308-4 Section IV pages 1-6.

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CA04561 REVO L

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6.0 REFERENCES

, DRAWINGS, AND SOURCES OF ADDITIONALINFORMATION /

This section lists in tabular format, references that are used in describing the system, i

operating.

l Table 6-1 NITROGEN GAS SYSTEM REFERENCES NORMAL OPERATING PROCEDURE 01-4 TECH. SPECS None FSAR Not Described TECHNICAL MANUALS 15308-004 Operating and Maintenance Manual for Model 11300-400 Customer Station, MG INDUSTRIES PO.

NO. 52240 TECHNICAL DRAWINGS Bechtel BG&E Piping and Instrument Diagram OM 68 60-726-E Nitrogen Gas System Piping and Instrument Diagram OM 59 60-717-E Well and Pretreated Water (SH-1)

Piping and Instrument Diagram OM53 60-712-E Instrument Air Unit-I (SH-3)

Piping and Instrument Diagram OM 454 62-712-E Instrument Air Unit-II (SH-3)

Piping and Instrument Diagram OM 74 60-731-E Safety Injection and Containment Spray (SH-2 of 3)

Piping and Instrument Diagram OM 462 62-731-E Safety Injection and Contamment Spray (SH-2 of 3)

Piping and Instrument Diagram OM 77 60-734-E Reactor Coolant Waste Processing System (SH-1, 2, 5, of 5)

Piping and Instrument Diagram OM 73 60-730-E Chemical Volume and Control System Unit-I SH-1,3 of 3) 14

CA04561 REVD PAGE f Table 6-1 NITROGEN GAS SYSTEM (continued)

Bechtel BG&E Piping and Instrument Diagram OM 461 62-730-E Chemical Volume and Control System Unit-II (SH-1 of 3)

Piping and Instrument Diagram OM 35 60-700-E Main Steam Unit-1 (SH-1 of 3)

Piping and Instrument Diagram OM 36 62-700-E Main Steam Unit-il (SH-1 of 4)

Piping and Instrument Diagram OM 72 60-729-E Reactor Coolant System Unit-1

. Piping and Instrument Diagram OM 460 62-729-E Reactor coolant System Unit-II Piping and Instrument Diagram OM 66 60-724-E Nuclear Steam Sampling System (SH-3 of 3)

Piping and Instrument Diagram OM 480 60-747-E MSIV Actuator Unit-I Piping and Instrument Diagram OM 483 62-747-E MSIV Actuator Unit-II ADDITIONAL REFERENCES Thermax Incorporated-ThermaFin Ambient Air Vaporizers McGraw Hill, Dictionary of Science and Technical terms-Q.123 M34,1989 McGraw Hill, Encyclopedia of Science and Technology Q.121 M3,1982 15

CA04561 Rev.0 Page 50 ATTACHMENT G CROSS SECTIONAL AREAS I

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CA04561 Rev.0 Page 52

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ATTACHMENT H ATMOSPHERIC DENSITY VS ALTITUDE

C 4581 REV 0 STANDARD ATMOSPHERE (Continued)

PASE 53 Abbrerlated Metric Table of the U. S. Extension to the ICAO Standard Atmosphere de E

• [$e-8 II

• E n(b ks m-8

- 5,000

- 4,996.070 320.66 320.66 28.966 1.7776 X 108 1.9312

- 0.0065

'8'8 0

0 288.16 288.16 28.966 1.01325 X 108 1.2250 no-

- 0.0065 11,000 11,019.067 216.66 216.66 28.900 2.2032 X 108 3.6391 X 10-8 8"~

sero

.n so -

20,000 20,063.124 216,66 216.66 28.966 5.4748 X 108 8.8034 X 10-8 j,., _

sero -

w 25,000 25,098.710 216.66 216.06 28.966 2.4886 X 108 4.0016 X 10-8 5888

+0.0030 E:oo 32,000 32,161.900 237.66 237.66 28.966 8.6776 X 108 1.2721 X 10-8 W

+0.0030 i'8' a 47,000 47,350.101 282.66 282.66 28.966 1.2044 X 108 1.4845 X 10-8

• iso f'8' zero 53,000 53,445.620 282.60 282.66 28.900 5.8320 X 10-8 7.1881 X 10-8 75,000 75,895.488 196.86 196.80 28.900 2.452 X 10-8 4.339 X Id-s zero e

90,000 91,292.001 106.80 196.80 28.936 1.815 X 10-s 3.213 X 10-8 g so y

+0.0035 g

120,000 128,548.193 322.86 273.6 24.54 1.451 X 10-8 1.506 X 10-8 w" Ti

+0.0100

[ *o 175,000 179,954.614 812.86 069.0 23.84 6.190 X 10-8 2.655 X 10-88 g se p_

+0.0058

=

m, 300,000 314,862.257 1,537.86 973.5 18.34 1.447 X 10-8 3.279 X 10-88 8

• t Abbrerlated English Table of the U. S. Extension to the ICAO Standard Atmosphere soo[

($>

d

• [t5'-8 IS

.1J ts-8 8"'

ih fre

- 16,404.199

- 10,391.307 577.188 577.188 28.960 3.7110 X 108 3.7457 X 10-8

- 0.003566160 8" -

0 0

518.68S 518.6 28.960 2.1162 X 108 2.3769 X 10-8

!so

- 0.003506100 E

36,089.239 30,151.798 389.988 389.9 28.900 4.72G8 X 108 7.0011 X 10-8 g '*

8 zero ri

$,,so 65,616.798 65,823.897 389.988 389.98 28.9G6 1.1548 X 108 1.7251 X 10-8 zero P

82,020.997 82,344.S49 389.988 389.988 2S.000 3.1975 X 108 7.7644 X 10-8 E i*o

+0.001645920 l,,,

104,986.877 105,518.055 427.788 427.788 28.966 1.8124 X 108 2.4682 X 10-8 s

+0.001645920 l

g'ico_ l 154,199.1476 155,348.103 508.788 508.788 28,960 2.5155 X 108 2.8803 X 10-8 zero 173,884.514 175,346.523 508.788 508.78828.906 1.2180 X 108 1.3947 X 10-8

= So-

-0.00213909G jee-l 240,062.992 249,000.945 354.348 354.34 28.900 5.121 X 10-8 8.420 X 10-8 g

zero W 8'~

295,275.591 299,516.408 354.348 354.34 28.906 3.792 X 10-8 6.234 X 10-'

o _ l

+0.001920240 413,385.827 421,746.041 581.148 492.4 24.54 3.031 X 10-8 3.038 X 10-88

• 8 ?,-

+0.005486400 574,146.982 500,402.278 1,463.148 1,204.000 23.84 1.293 X 10-8 5.147 X 10-88

+0.003182112 984,251.969 1.033.012.654 2.768.148 1.752.000 18.3 3.023 X 10-8 6.362 X 10-

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F-210 b

ELEMENIS PRESENT IN SOLUTION IN SEA PROPERTIES OF THE EARTII'S ATMOSPilERE WATER EXCLUDING DISSOLVED GASES AT ELEVATIONS UP TO 160 KILOMETERS P

Reprmted by permission of the publishers from "The Oceans" by Sverdrup, The a verase atmosphere up to 160 km based on pressure and density data obtained C3 Johnson, and Fleming. Copynght 1942, by Prentice-Hall, Inc.

on rocket Rights above White Sands,New Meanco.

4-=

Havens,

, an a urnal yn cuarc, a 2.

m i

Concentration (grama/metnc ton)

~

M Element or parts per mill 60n gig;,

tude hmper. hmpen Cl 18 980 km atures atures Velocity No 10.561 above

• K

• K of Mean

• X3 M8 sea Pressure Density I N,, 0,1 (N,,Op Sound Free Path TT1 3

level mm Hg sm/ meters M = 29 M = 24

m. sec em (N,)

g s

g,

,g K

380 0

760 1220 290 345 6.5 m 10-*

CD Br 65 10 210 425 230 310 1.9 m 10-s C(morgamc) 28 20 42 92 210 295 8.6 m 10-8 Sr 13 30 9.5 19 235 315 4.2 m 10-8 1540,)

041-7.0 40 2.4 4.3 260 325 1.8 m 10-8 a

B 4.6 50 7.5 m 10-8 1.3 270 330 6.1 a 10-8 l

5:

402 4 60 2.1 a 40 *'

3.8 m 10-'

260 325 2.1 x 10-a C (organic) 1.2-30 70 5.4 = 10 8 1.2 m 80 '

210 295 6.6 a 10 ' '

Al OM.9 80 1.0 s 10 s 2.5 m l0-a 190 280 3.2 x 50 i F

1.4 90 8.9 m 10-8 4.0 m 10 *

• 210 293 2.0 N (as antrate) 0.001-0.7 100 4.2 m 10-*

8.0 m 60-*

240 315 10 4 N (as organic nitrogen) 0.03-0.2 110 l.2 s 10-*

2.0 m 10 **

270 220 330 40.0 Rb 0.2 820 3.3 m to-a SA a 10**

330 270 370 1.5 m 108 L'

El 130 1.5 m 10**

2.0 m 10 *'

390 320

.400 4.0 m 108 P (as phosphate)

> 0.001-4.10 140 7 m 10

• 1A a 80-*

450 370 430 14 m 10' Ba 0.05 150 3 m 10 **

3S s 10-*

510 420 460 2.5 a 10' f

N (as natnte) 1-0.05 N (as ammoma)

> 0.0054 S5 As(as arsenite) 0.00M.024 Fe 0.002-0.02 i

P (as orsamc phosphorus) 0-0.016 Z"

VELOCITY OF SEISMIC WAVES Cu 0.001-0.09 Mn 0.001-0.01 Pb 0.004-0.005 se p co4 Depth Longitudinalor Transverse or km condensational km/sec.

distortional km/sec.

5n 0 003 Cs 0.002 (approximate) 0-20 5.4 -5.6 3.2 U

0.00015 4.0016 Mo 0.0003-0.002 20-45 6.2M.75 3.5 1300 12.5 6.9 Ga 0.0005 Ni 0.0001-0.0005 2400 13.5 7.5 Th

<0.0005 Ce 0.0004 V

0.0003 La 0.0003 Y

0.0003 Hg 0.00003 As e

0m0015-02003 ATMOSPIIERIC AND METEOROLOGICAL DATA Di 0.0002 Co 0.0001 Sc 0.00004 Total mas of the atmosphere, estimated by Ekholm,5.2 x 10" g,11.4 s 10

Au 0.000004-0.000008 pounds, J.70 x 10 sons.

Fe (in true solution) e10**

Evidems of eatent: twihght,63 km,39 mLt meteors,200 km,124 mi.: aurora Rs 2.10 - "-3.10 * 44-360 km,27-224 mi.

Ge Present Ti Present

' Distance to Earth.

W Prewnt Cd Prewnt in manne orgamsms Cr Present m marine organisms Tl 1

Present in manne organisms sb rnwni in manne organisms STANDARD ATMOSPliERE Zr Present in marme organisms Pt Prewnt in manne organisms U. S. Entension to international Civil Avsstion Organization Standard Atmosphers,1958 The atmosP ere was classined in 1958 into three altitude regions designated as TIIE pli OF NATURAL MEDIA AND ITS RELATION h

TO 111E PRECIPITATION OF IIYDROXIDES

a. siandsrd 0 i. 32 standard seapoiential kilometern Reprmied from

• Principles of Geochemistry" (1952) with the permission of

"[g, g,'

Bnan Mason, author, and John Wiley and Sons, pubhshers.

Properties of the atmosphere were calculated as functions of geometnc attitude pH Precipitation of hydreandes Naturnt media pH as well as geopoesntial, the potential bems estabhshed for the latitude wher acceleration of gravity has a sea-level value of 9.80665 meters per second 111 Magnesium Il second. Symbols and abbreviations usas in these tables are as follps?

H - Altitude in geopotential measure Bivalent manganese 8i Scaesier i8 L

Molecular 4cale temperature gradient M = Mean tat weight of air 7

Bivalent iron River water

?

f g'g",",'[,P f

= Su dard go?potental meter

• ~

P = Pressure 4

Pest water 4

= empera is a use t ynans scales

~

Ac the al sprmss

{2 T. = Molecular 4cale temperature in absolute thermodynamic sca e, 2,

g Z = Altitude he.

-- measure

+

F 206

STANDARD ATMOSPHERE (Continued)

C A04561 REV 0 P AGE ST l

8 9

1 1

4 8

9

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M e NEAN tsadCULAR WEIGHT g So

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to to

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• I$oo 500 60o 700 000 saco 6300 st<C

• $F 4e #9 to 21 et is to es to at to to 30 TElsPERATURE I4 *K HEAff MOLECULAR WEl6MT Sdemseemesses)

YtuPERATURt vs ALTITIJDE NEAN 8eoLECULAR WCl6HT V8 ALTITuot

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j Loe,, or eatssume in mEtnic umts too,, or ernsirr ni mEtnic units X 10-

entssunt vs. ALTiTuot othstTT vs Att Tuot u 10-**

i i

F.211

SEA LEVEL ATMOSPHERIC COMPOSITION FOR ME j

A DRY ATMOSPHERE

• J

(

CA0 V0 Molecular fraction.

Molecular weight Constituent gas (0 = 15.999,)

f f 8, n Nitrogen (N,)

78.09 14.0067 d

4 Oxygen (0 )

20.95 98, e

3

(

Argon (A4 0

, a

\\

9.

y d

1 Carbon dioxide (CO,)

0.03 44.01 j *,

Neon (Ne) 1.8 x 10-s 20.117, c.9 e

Helium (He) 5.24 x 10-*

4.00260

.o,*?g;I Krypton (Kr) 1.0 x 10-*

83.80 ie Hydrogen (H,)

5.0 x 10-s 2.016 Xer.an (Xe) 8.0 x 10-e 131.30 8p

,s 1

Ozone (O )

1.0 x 10-*

47 9994

,s Radon (Rn) 6.0 x 10-s e 222 8These values are taken as standard and do not necessarily indicate the exact condition of the atmosphere. Ozone and radon particularly are known to vary at 4,

sea level and above, but these variations would not appreciably affect the value of

_g M

y

, w A

w q

..d SEA LEVELVALUES OFICAO ATMOSI'HERE

.fw 5

'E 1

[

%5,k g

g Property Metric units 1

a we c

Collision frequency 6.9204049 x 10' sec-8 Y

D

+

.5 Conductivity, thermal 2.5339053 x 10-8 J m-' sec" (*K)-i Conductivity, thermal 6.0532182 x 10-8 kcal m-' see-' (*K) '

h l

Conductivity, thermal 2.5838643 x 10-8 kg/* sec-' (*K)-'

}

g Co Density, mass 1.2250140 kg m-8 y

A Density, mass 0.12491666 kgf sec m-*

8 v b; Z

Gravitational acceleration 9.80665 m sec-'

Kinematic viscosity 1.4607413 x 10-' m' sec-'

Mean free path 6.6317223 x 10" m

"'{

Molar volume 23.645444 m' (ks-mol) '

-i?

Molar volume 231.88259 m' ((kgf sec' m"). moll 5

3lg Molecular weigh:

28.966 (dimension!cu)

Number density 2.5475521 x 10" m-8 i

l Particle speed 458.94204 m sec-'

'J '

Preuure 0.760 m Hg a

Preuvre 1,013.2500 mbar p,,,,,,

101,325.00 nt m-'

Preuure 10,332.275 kgf m" Scale height 8,434.4134 m Sound speed 340,29205 m sec-*

Specific weight 12.013284 kg m-8 see '

Specific weight 1.2250140 kgf m-8 Temperature 15.0'C Temperature, absolute 288.16 K Tempersture, molecular scale 288.16 K f,

1.7894285 ' 10-8 kg m-8 sec-'

/

x Viscosity, coefficient of Viscosity, coefficient of 1.8247093 x 10-* kgf see m_

4 4

'kgf = kDogram (force)

F-208

1

- '~

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CA04581 REV0 STANDARD ATMSSPHERE (Costluxed)

PAGE 9 8"

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~to ato 400 soo soo sooo stoo as s.:

ss es e7 as Id(AN PERTICLE sPEEQ IN m esc 4 ACCELERATION oF sRAVITY IN m port MEAN PARTICLE SPEED ACCELERATION OF GRAYlTY VS. ALTITUDE VS. ALTITUDE

\\

MEAN FREE PATH OF GASES 7

Angular Radtus of Halos and Rainbows

[,Tcge',',,=,b teine Hs Coronse due to small water drops........ls......

k' e

1* to 30*

Bmall helo, due to 60* angles of 6ce crysta...... 22' Large bale. due to 90* angles of ice crystale...

46' Pienan.

k nbow hobow. primary...

.................... 41' 20' C**

lam Hg e., mm Hg e e, um He e m, mm Hg Tee mm Hg

, secondary...

......,,.. 42* 18'

~,

.,,.,e m

.,,,,e.

e,,,,e m a,,,,e a

,,,.,,a H84W 13 32, sm 41.83, I,l,33, i,l,32, 13 33 H

r-.

i.

sonar constant O i; t;

The energy falllag se one eq. em. area at normalleeidence. outside 0*F8'.

4 83 e sa e sa s a2 a ss the earth's atmosphere. at the mean datanse of the earth from the sua as a.sa as a sa a.sa equale= 3.00 email estorice per minute. This value varies 13 E l

COMPONENTS OF ATMOSPIIERIC AIR (Exclusive of water vapor.)

i l

Constituent Content (Nme r eent)

Content (ppm)

Mateoular din 6seter, sei by vo by volume C

i,.ollid.ae, om N:

78.084 0.004 3ro From From van From e.e g On 20.946 0.002

'i===tr (T' esadby CO:

0.033

• 0.001 Ar 0.934

• 0.001 Ne

^ 18.18

• 0.04 Amass-SMXW f MXIM 8 08XIM

~..

IIe 5.24

• 0.004 Demon =ide.*.*":

s!$

e5

!j t.sexso Kr 1.14

• 0.01 NN'* d"*

C*

om a.H i:n" *"

~.

Xe 0.087

• 0.001 N

jj jj

[j II 0.5 Kryptaa.....

Cli.

2 heurr...

<s. e3 3,3,

~

..... ~..

a.m Ns0 0.5

• 0.1

,j jj

{ia"]

• 4.02 8.43 F.213 li

,