Text

Essential Chilled Water Load
	ML20058J559
Person / Time
Site:	South Texas
Issue date:	10/14/1993
From:	Starks V; HOUSTON LIGHTING & POWER CO.
To:	;
Shared Package
ML20058J460	List: ML20058J456; ML20058J559;
References
	MC-6412, NUDOCS 9312140156
	Download: ML20058J559 (72)
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'

I C -a).3Fl STP 3053 (10/91j OEP-3 m CALC NO. S C - IMI 2-SOUTH TEXAS PROJECT ELECTRIC GENERATING STATION PRELIM.

HOUSTON LIGHTING & POWER COMPANY FINAL CALCULATION COVER SHEET volo IfL bH UNIT:

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Mc-6412 U

PROJECT SHT OF ELECTRICGENERATINGSTATION REV.

PREPARERIDATE REVIEWERIDATE HOUSTONLIGHilNG & POWER o

g

,_,f.,y g,g fcf77 i

GENERAL COMPUTATION SHEET

~

d SUBJECT UNIT ls

./

EAB supply header flows & battery supply header flows are taken from Appendix H.

Train Supolv Header Flow, cfm Rat 3erv Header Flow, cfm A

34447 3425 B

26688 2046 C

37884 2443 h

Supply Fan Flow = (34447+26688+37884)/2 = 49510 cfm Makeup flow = (3425+2046+2443)/2 = 3957 cfm Return fan flow = 49510-3957 = 45553 cfm Because train C supply fan flow is greater than C header supply flow, 49510-37884 = 11626 cfm of fan C discharge mixes with fan B j

discharge (supply header cross train flow).

The recirculated portion of train C header = ' 37884-2443 = 35441 l

cfm.

Because the return fan flow is higher than 35441 cfm, the flow l

from train B to train C return fan = 45553-35441 = 10112 cfm Because all of the C header flow is from the C coil outlet, the C 1

header temp. = 58.21

'F The sum of all emergency (battery backed) lights in the train'C i

area is 2592 watts x 3.413 Watts / btu /hr + 12000 btu / ton-hr

= 0.737 tons (from Appendix I)

However, since non-1E power is not lost, the emergency lighting does not come on.

Therefore the "use factor" = 0 Values for class 1E equipment, class IE cables, normal lighting, non-1E equipment, and non-1E cables are likewise from Appendix I.

i

40 [ cJ%)

9 r-41 -)

CALC NO.

SHT OF SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWERlDATE ELECTRICGENERATINGSTATION HOUSTON UGHTING & POWER o

gg fcg fJ M

n/r/u GENERAL COMPUTATION SHEET l

SUBJECT UNITls The use factor for non-1E cables is less than 1, based on the re-evaluation of non-1E equipment in DCN EC-73 of Ref. 7.

Before the DCN, the total non-1E equipment load was 94~220 watts (from Appendix J).

After the DCN, the total non-1E equipment load is 70964 watts (from Appendix I).

The ratio is 70964/94720 =.749 Therefore, it is reasonable and conservative to apply a use l

factor of 0.8 to the train C non-1E cable load.

j l

The total train C area heat load = 0.74*0 + 17.52*1 + 12.00*1 +

10.12*1 + 20.19*1 + 7.55*0.8 = 65.86 tons Train C return header temp.

= 58.21 + 65.86 tons

12000 btu / ton hr = 78.67

F f

1.09

35441 The train B return fan receives a mixture of trains A & B return air for an average temperature of 69.56

F.

The B return header and B return fan inlet ducts are very closely in-line, so the A &

j B flow would actually mix before the flows split to the B fan inlet & C fan inlet.

C train return fan inlet = 78.67*35441 + 69.56*10112 = 76.56

F l

(35441 + 10112)

The heat added by the return fan = 15.77 tons (from App. F).

j The heat added by the supply fan = 36.242 tons (

)

j i

Delta T across the return fan = 15.77 tons *12000 btu / ton hr 1.09*45553

= 3.81

F Temperature at supply fan inlet = 45441*f76.65+3.81) + 3957*95 (45441+3957)

= 81.62

F 1

41 of d A )

l Mc-6412 5"'"*

CALC NO.

SHI 0F l

SONHIDGS PROJECT REV.

PREPARERIDATE REVIEWERIDATE

[

ELECTRICGENERATINGSTAil0N t

HOUSTON UGHilNG & POWER e

Vg p 9,g m qjg GENERAL COMPUTATION SHEET SUBJECT UNIT ls

?

Delta T across supply fan = 36.242 tons

12000 btu / ton.hr j

1.09*49510 i

= 8.06

F l

Cooling coil inlet temperature = 81.62 + 8.06 = 89.68

F 16.64 tons i

The latent load =

4840

3957 * (139 - 66)

=

7000 grains /lb*12000 btu / ton hr i

The coil " thermal effectiveness" is based on sensible heat transfer.

The majority of condensation will occur on the coilder coils, which increase the water temperature seen by the rest of j

the coils.

We assume the chilled water inlet temperature available for sensible heat transfer is actually:

{

52 +

16.64 tons

12000 btu / ton +hr

= 52.67

F l

500 lb/hr gpm

600 gpm

1.0 btu /lb *F The coil effectiveness, c = 0.8503 (App. B) i Neglecting correction to scfm, Cmin = Cair = C

lb/hr air i

p 3

3

60 min /hr

cfm (ft / min) lb/hr air = 0.075 lb/ft C of air varys slightly with moisture content.

Use C, = 0. 24 2 j

as representative of conditions in EAB and other conditioned l

p spaces.

Cmin = 0.242*0.075*60*cfm = 1.09*cfm f

Q = Cmin*c*(Tair in - Tchwtr in) btu /hr I

also Q =

Cair * (Tair in - Tair out) l or Tair out

= Tair in - Q/Cair j

58 21 *F l

= 89.68 -.8503*(89.68 - 52.67)

=

l a

l J

1 42 [d'#M MC-6412

""""**)

CALC NO.

SHT OF SOUTHTEXAS PROJECT ELECTRICGENERATINGSTAil0N REV.

PREPARERlDATE REVIEWERIDATE j

HOUSTONLIGHTING& POWER o

Q ig qy s g f g /f,

i GENERAL COMPUTATION SHEET SUBJECT UNIT ls i

If we had not made s Ich a good guess to start with, the we would l

iterate the process with this value as the new trial coil outlet temperature.

l f

The sensible cooling load

= 1.09*49510*(89.68-58.21)/12000 = 141.53 tons l

.i Total coil load = sensible load + latent load

= 141.53 + 16.64 = 158.17 tons

[ Note: the last digit can differ because the spreadsheet retains more significant digits than is printed or is used in this hand r

calculation.]

j 2.

CONTROL ROOM ENVELOPE Makeup flow = 1105 cfm from Appendix H.

Makeup fan heat into air = 0.8058 tons from Appendix F.

Heaters for makeup filter units = 4.5 KW from Ref.

5.

Air temperature at filter Outlet

= 95 + 0.8058*12000 + 4.5 KW

3413 btu /KW hr = 115.8 *F 1.09*1105 1.09*1105 This_is not recorded on the spreadsheet because the air mixes before being introduced into the separate trains.

Avg. Temp.=95+(0.8058+0.7766)*12000+(4.5+4.5)*3413 = 116.19

F 1.09*(1105+1047) 1.09*(11.05+1047)

Makeup to train = 1047 + 1105 = 1076 cfm 2

Cleanup fan flow = 5912 cfm from Appendix H 16132 cfm from Appendix H Return fan flow

=

Mc-6412 43 ob d B l STP 361(1248)

CALC NO.

SHT OF SOUTHTEXASPROJECT REV.

PREPARERIDATE REVIEWERJDATE l

ELECTRICGENERATINGSTATION HOUSTON UGHTING & POWER 0

gj_

le-4-tJ M <o /, /n GENERAL COMPUTATION SHEET SUBJECT UNITis j

i Use a trial return air temperature of 65.38

'F Return fan heat input to air stream = 6.5688 tons (App. F) i Return fan outlet temperature = 65.38 + 6.5688*12000 = 69.86 *F 1.09*16132 l

Cleanup fan inlet temperature

= O.86*(5912-1076) + 116.19*1076 = 78.29

F 5912 Cleanup fan heat to air = 3.0141 tons from App. F.

i Cleanup fan outlet temp

= 78.29 + 3.0141*12000 = 83.90 *F

'l 1.09*5912 Coil inlet flow = 16132 + 1076 = 17208 cfm Coil inlet temp. = 5912*83.90 + (17208-5912)*69.86 = 74.68

F 17208

'I i

Cair = 1.09*17208 = 18757 btu /hr+F I

Coil effectiveness for sensible heat transfer = 0.9478 (App. B)

{

Latent load from personnel = 0.4 tons (Ref. 13)

Latent load = 4840*1076*(139-66) + 0.4 = 4.93 tons l

7000*12000 Note:

The 66 grain humidity was based on expected EAB

)

coil outlet conditions.

The same value is used for other coils, including the control room coil, for convenience.

At 54 *DB & 53

WB, the. outlet I

humidity is 58 grains.

Thus the latent load is underestimated by about 0.5 tons.

The personnel latent load should be divided by the number of operating trains, or 2 in this case.

The combined error is 0.3 tons, which is not significant and which will be offset in other coils.

(

n

Mc-6412 44 [tl1l CALC NO.

SHT OF SOUTHTEXASPROJECT ELECTRICGENERATINGSTATION REV.

PREPARERIDATE REVIEWERIDATE HOUSTON UGHTING & POWER D

y g93 g yjg GENERAL COMPUTATION SHEET SUBJECT UNIT ls Effective chill water inlet temp. = 52 + 4.93*12000 = 52.70

F 500*168 Sensible load

= Cmin

c * (74.68-52.70)

= 18757

0.9478 * (74.68-52.70) = 32.56 tons 12000 Coil outlet temp. = 74.68 - 32.56*12000 = 53.85 *F 18757 Surply fan heat to air = 7.257 tons (App. F)

Supply fan outlet temp. = 53.85 + 7.257*12000 = 58.49

F 1.09*17208 The flow from A, B,

& C trains are mixed for the supply header temperature.

= 0.0*0.0 + 18486*58.64 + 17208*58.49 = 58.57

F (0 + 18486 + 17208)

Electrical loads are from Appendix I, except for the Reheater load.

This replaces the non-1E equipment load.

The I & C equipment loads are not easily separated into class 1E and non-class 1E portions, so the entire load has been considered class 1E.

The reheater load is included in its place.

Three operable reheaters are installed in the control room supply headers, for a maxinum load of:

(43 kw + 60 kw + 5 kw)*3413 btu /kw.hr = 30.72 tons

=

12000 These are de-energized by an SI signal, so the use factor for steady state analysis is 0.

Personnel sensible load = 0.5 tons (per Ref. 13).

i

d 44 B l MC-6412 45 wm 02*

CALC NO.

SHT 05 SOUTH TEXAS PROJECT REV.

PREPARERIDATE REVIEWERIDATE ELECTRICGENERATINGSTAilON HOUSTON LIGHTING & POWER 3

OfL.

g_y_. 9 3 g 4.jg j

GENERAL COMPUTATION SHEET SUBJECT UNIT ls The cleanup and supply fans are centrifugal, so motor heat is rejected into the equipment rooms.

This load is lumped into the total load, which is easier than trying to separate these loads into the correct coil.

The loads are similar so the error is small.

It is conservative because train C is the liraiting train and the actual train C fan motor heat loads are less than average.

The total header sensible load 19.33 + 0.5 +.818 + 0.771 + 0.338 + 0.320 = 22.08 tons j

=

Total header flow = 18486 + 17208 = 35694 cfm Return header temp. = 58.57 + 22.08*12000 = 65.38

F 1.09*35694 This equals the trial temperature.

Otherwise, the calculated temperature would be the new trial temperature, and so on.

Total coil load = 32.56 tons + 4.93 tons = 37.49 tons 3.

CCW / ESSENTIAL CHILLER ROOM Train C, MAB Room #067F CCW flow after SI = 13000 gpm (Ref. 35)

CCW pump bhp @ 13000 gpm = 780 hp (Ref. 33)

Motor efficiency = 0.943 (Ref. 34)

Motor heat to room

= 780 hp * (1-0.943)

746 watts /hp 0.943

= 35200 watts Essential Chilled Water Pump flow = 954 gpm (Ref. 38)

.]

MC-6412 4 6 blp,( -

f z

STP 361(1248) -

SOUTHTEXASPROJECT ELECTRICGENERATINGSTATION REV.

PREPARERlDATE REVIEWERlDATE j

HOUS10NLIGHTING & POWER g

4

,,_y_,3 gay) 7,j,ju GENERAL COMPUTATION SHEET SUBJECT UNITis Essential Chilled Water Pump bhp 9 954 gpm = 50 hp (Ref. 36) j Essential Chilled Water Pump motor efficiency = 0.937 (Ref. 37)

Motor heat to room = 50 hp * (1-0.937)

746 watts /hp i

(0.937)

= 2508 watts j

Note:

Higher values were used for both CCW pump motor and Chilled water pump motor based on preliminary estimates (39305 watts & 4610 watts respectively).

The higher values have been retained because they are conservative j

and have little affect on the results.

The CCW Supplemental Cooler contains 3 fans, each with 1.5 bhp.

t Motor efficiency = 0.80 (Ref. 32 F) l Heat to room = 3

1.5 ho

746 watts /hp = 4196 watts j

0.80 chiller Area Supplemental Cooler 1 fan 0 3.7 bhp, motor eff. = 0.829 (Ref. 32H) r Heat to room = 3.7 hp

746 watts /hp = 3330 0.829 300 ton chiller compressor maximum input = 354 KW (Ref. 57)

{

Motor efficiency = 0.946 (Ref. 37) l (1-0.946)

1000 watts /KW = 19116 watts Heat to room = 354 KW

The chiller control panel would also release heat, say 1000 watts Total = 20116 = 20156 watts used from preliminary input j

i

l Mc-6412 47 84), \\

snw o2*

CALC NO.

SHT OF SOUTHTEXAS PROJECT REV.

PREPARERlDATE REVIEWERIDATE ELECTRICGENERATINGSTATION HOUSTON LIGHTING & POWER v

gff f o_gg y g f og/g GENERAL COMPUTATION SHEET SUBJECT UNIT ls The 150 ton essential chiller is hermetically sealed, so heat losses from the motor are removed by refrigerate to the condenser.

The chiller does have a control panel and lube oil heater (when idle), so a small heat load is present.

1 Preliminary input used 1500 watts with a "use factor" of 0.8, which looks reasonable for the control panel and oil heater.

Lighting, electrical equipment, & cable loads are from Ref. 11.

Conduction load is from Ref. 15. (0 in this case)

The use factor for conduction is taken as 0 because normal MAB cooling is not lost in this scenario, so adjacent rooms will not heat up.

s Piping heat load is from Ref. 15.

The total heat load in the room

= 180*0 +0*1 +1503*1 +2116*1 +0*1 +2790*1 +0*0 +0*0 +39305*1

+4610*1 +20156*1 +1500*0.8 +4196*1 +3330*1 = 79306 watts Room vent flow = 1300 cfm This is design flow from Ref. 14.

Comparable Unit 2 spreadsheets used MAB final air balance data, which was close to the design value.

Vent temp. = 65 "F (Ref. 22)

Vent constant = 1.09*1300 cfm = 1417 Air flow to CCW supplemental cooler = 25748 cfm (Ref. 30)

Design ECW flow = 36 gpm (Ref. 32F)

ECW temperature of 100 *F is 1 degree higher than Tech Spec limit for ECP temperature.

This scenario is within the first 30 minutes following a LOCA and ECW discharged to the ECP takes much longer to circulate back to the intake.

i

i b 3)-

Mc-6412 48 CALC NO.

SHT OF SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWERIDATE ELECTRICGENERATINGSTATION

(

HOUSTONLIGHilNG & POWER o

g{

f,_y_qg cg9_ foj7j7, GENERAL COMPUTATION SHEET SUBJECT UNIT Is The thermal-effectiveness of the CCW supplemental coil is c=0.8237 from Appendix B.

The AHU constant is the lower of 500*gpm*c or 1.09*cfm*c f

500*36 = 18000 < 1.09*25748 = 28065 therefore AHU constant = 500*36*0.8237 = 14827 The chilled water AHU air flow = 3491 cfm (Ref. 30)

Chilled water design flow = 40'gpm (Ref. 32H) l Chilled water inlet temperature = 52 *F from case input j

i Thermal effectiveness of coil = 0.7778 from Appendix B AHU constant = C3= 1.09

3491

0.7778 = 2960 Note: Only in the ESF Pump Room and CCW Supplemental Coolers-does the cooling water have_a chance to set Cmin.

Most l

other AHU in the spreadsheet do have.the decision process to select Cmin.

I Latent load = 0 because conditioned air is supplied from the MAB j

system.

i T,, = 7 92 06 watts

3. 413 btu / watt.hr +14 827 *100 +2960

52 +1417

65 l

(14827 +2960 +1417)

T

= 104.1

F J

12.85 tons Chilled water sensible load = 2L960* (104.1 - 52)

=

12000 btu / ton.hr i

Total chilled water coil load = 12.85 + 0 = 12.85 tons Note: The two coolers in this room act together.

The CCW l

supplemental cooler basically keeps room temperature slightly higher than ECW inlet temperature, while the load on the-chilled water coil is determined by the room temperature.

The actual ~

room heat loads-have very'little affect on the load to the l

chilled water train.

{

l l

i 1

6

+

49 [ 4 0,)

Mc-6412

"*"2" CALC NO.

SHT OF SOUTHTEXAS PROJECT REV.

PREPARERlDATE REVIEWERIDATE ELECTRICGENERATING STATION Vi u-y_5)

M eg/73 HOUSTONUGHTING & POWER e

GENERAL COMPUTATION SHEET SUBJECT UNIT Is 4.

ELECTRICAL PENETRATION ROOM. Train C.

EAB 301 Electrical heat loads are from Ref.

7.

The normal AHU is running per the scenario.

6.3 hp

746 watts /hp

1/0.672 = 6994 watts (Ref. 26) i Essential AHU load to air 8.2 hp

746 watts /hp

1/0.838 = 7300 watts (Ref. 3)

Conduction load = 0 per assumptions 6 & 7.

Piping load = 0 per Ref. 12.

L Total room load = 50676 watts Vent flow = 830 cfm per design Vent temp. = 65

F (Ref. 22)

Roon vent constant = 1.09

830 = 904.7 Normal AHU fan flow is assumed to O because the normal and emergency AHU fans share common ductwork and the emergency fan has considerably higher static pressure.

Therefore the normal i

fan may be " shut-off" and be unable to move air.

Emergency AHU flow = 7241 cfm (Eef. 30)

Design chill water flow to coil = 78 gpm (Ref. 32F)

Coil effectiveness = 0.8006 per Appendix B Coil const. = 1.09 *07451

0.8006 = 6319 i

Latent load = 0 T,,= 507 67

3 0413 +6319

52 +904.7*65 = 77.6

'F (6319 +904.7) load to chilled water = 6319 * (77.6 - 52)/12000 = 13.47 tons i

50 b!?s l Mr-6412 sTeasiore CALC NO' SHT OF SOUTH TEXAS PROJECT ELECTRICGENERATINGSTATiON REV.l PREPARERIDATE REVIEWERIDATE HOUSTON UGHTING & POWER o

f g _fy g foffj7, GENERAL COMPUTATION SHEET SUBJECT UNITis S.

ESF PUMP ROOM. TRAIN C, FHB 004 Electrical loads are taken from Ref. 10

-j Conduction load = 0 (Ref. 18)

Note:

Trains A & B have a steady state conduction load for

/(

the spent fuel pit, which is above the Train A room and partially above the Train B room.

i Conduction =

2376.2 b/hr with SFP O 125 *F and room 104 (Train A), per Ref. 18 Consideration of initial transient loads indicate a reduced initial room temperature is necessary if only the 300 ton chiller is available.

It is conservative I

to use this 75 'F room temperature for conduction load in all cases for this room.

Room FHB 006, Train A ESF Room Conduction

= 2376.2 b/h * (125 - 75)

1 watts

= 1658 watts

-j (125-104) 3.413 b/h l

l Similarly, for FHB 005, conduction j

= 1139.2 * (125 - 75)

1

= 795 watts (125 - 104) 3.413 Piping heat load

= 136012 b/h (Ref. 18)

= 136012

1/3.413 = 39851 watts l

Note:

The piping heat load was calculated-assuming a room j

temperature of 120

F, whereas the steady state room i

temperature is much less than 120

'F.

Thus this l

portion of the load is underestimated by 3 to 4 tons.

i Overall the transient load is limiting by more than l

this margin, so this calc. will not be iterated to reflect actual room temperature.

l d

51Dhl3]

MC-6412 8'""'**'

CALC NO.

SHT OF SOUTHTEXAS PROJECT REV.

PREPARER 1DATE REVIEWER 1DATE ELECTRICGENERATINGSTAT10N 4

j,._ y_ ff C/G to/p/u HOUSTON UGHTING & POWER o

GENERAL. COMPUTATION SHEET SUBJECT UNIT is HHSI pump, Train C l'

BHP near runout = 880 hp (Ref. 8)

Motor officiency = 0.949 (Ref. )

heat load to room = 880 hp

746 watts /hp * (1-0.949) 0.949

= 35280 watts t

U1SI pump BHP near runout = 405 hp (Ref. 8)

Motor eff. = 0.931 (Ref. 8) heat load to room = 405

746 * (1-0.931) = 22392 watts 0.931 The Containment Spray pump and motor are identical to the UISI pump.

Air Handling Unit has 2 fans 0 3.5 bhp each Motor eff. = 0.82 (Ref. 32F) load to room = 2

3.5 hp

746 watts /hp

1 / 0.82

= 6358 watts Net room load = 133187 watts Room vent flow = 1208 cfm (Ref. 29)

Inlet air temperature = 95

'F from outside l

i

I MC-6412 52 [sJS)

CALC NO.

SHT OF f

SOUTHTEXAS PROJECT ELECTRICGENERATINGSTATION REV.

PREPARERIDATE REVIEWERIDATE HOUSTON LIGHTING & POWER o

g g gy

@ ujg/g

{

GENERAL COMPUTATION SHEET SUBJECT UNITls i

Note:

While non-1E power is still available, the SI signal opens the FHB inlet bypass dampers, which closes the l

normal-inlet dampers and trips the supply fans.

'i Room vent const. = 1.09

1208 = 1317 AHU air flow = 34050 cfm (Ref. 29) t Chill water flow (desirjn) = 62.5 gpm (Ref. 32F) i Chill water temperature = 52

F per initial input Note:

Chill water flow to this AHU is ch*.ged in a subsequent section.

A lower flow is desirable to minimize the transient load immediately after starting the AHU.

The l

higher flow is conservative for steady state purposes.

3 Coil effectiveness = 0.8258 from Appendix B i

Cmin

c, Cmin = lesser of Cair or Cwater

?

C

=

3 Cair = 1.09*34050 = 37115 i

Cwater = 500*62.5 = 31250 i

Use Cwater

.{

31250

0.8258 = 25806 i

C

=

3 Latent heat load = 4840

1208 cfm * (139-66) = 60970 b/h

.j 7000 grains /lb l

Note:

This assumes the coil outlet humidity obtained from 58

F Dry Bulb E 57

F Wet Bulb for the EAB coils.

The outlet temperature for these coils will be higher than 58

F Dry Bulb.

This also assumes the room humidity equals the coil outlet humidity, whereas the room I

humidity is higher than coil outlet humidity.

Both l

factor increase the calculated latent load relative to l

actual conditions and are therefore conservative.

i

~

Mc-6412 53of'4Si CALC NO.

SHT OF SOUTHTEXASPROJECT REV.

PREPARERIDATE REVIEWERIDATE ELECTRICGENERATiNGSTAil0N HOUSIONUGHTING & POWER p

g g

g afgg j

GENERAL COMPUTATION SHEET SUBJECT UNilis l

Effective Chilled Water Temperature = 52 +

60970

= 53.95 *F 500*62.5

F l

T, = 13 3187

3. 413 +1317 *95 +25806*53.9 5 = 72.70 (1317 + 25806)

{

y Coil sensible load = 25806 * (72.70 - 53.95) = 40.32 tons l

12000

(

Total load = 40.32 + 60970 = 45.40 tons l

12000 I

Note:

Calc. No. MC-5275 and Ref. 23 both indicate a very j

small available margin in the AHU, whereas this i

i calculation shows a huge margin.

It is obvious that vendor data from Ref. 32F was misinterpreted.

The heat i

transfer data in Ref. 32F is for only one of the two j

coils installed in the air handling unit.

This can be j

readily seen by calculating heat transfer from air flow.

Note:

The actual ventilation flows to the 3 ESF pump rooms i

per Refs. 29 (Unit 1) and 45 (Unit 2) are very-different from the design ventilation flows, and very different from each other.

The result is a big

[

difference in latent load between different rooms.

It is noted that MC-5275 did not consider latent loads in l

1 the ESF pump rooms.

)

1 6.

ESF SUMP VAINE ROOM. TRAIN C, FHB 009 The method is the same as the previous room, with the exception of the vent temperature.

In the emergency modo, air is exhausted from this room via the exhaust ducting, but the supply fans are j

tripped & supply fan inlet dampers are closed.

The only source of air is transfer air from the ESF pump room.

Thus the inlet air temperature is the same as the ESF pump room temperature

[

calculated in the previous example.

The latent load is taken as O because moisture in the air has been removed in the ESF pump rooms.

t i

i

+

54 [t-l E l MC-6412 m m n2" CALC NO.

SHT OF SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWERIDATE ELECTRIC GENERATING STATION HOUSTON UGHilNG & POWER c,

V1 9 W f)

N /o/#/b GENERAL. COMPUTATION SHEET SUBJECT UNIT is 7.

OPENT FUEL PIT PUMP ROOM. TRAIN C, FHB 107 Electrical load are from Ref. 10.

Piping heat load is from Ref. 18, converted to watts.

l SFP Pump bhp = 172 (Ref. 41) motor eff. = 0.930 (Ref. 41) heat to room = 172 hp

746 watts /hp * (1-0.93) = 9658 watts 0.93 AHU fan bhp = 0.54 (Ref. 321) 0.689 (Ref. 3) motor eff.

=

heat to room = 0.54

746

1/.0689 = 585 watts Note:

This AHU is actually outside the room and the fan motor may be outside the conditioned space.

This would decrease the heat load slightly, but the value used is conservative.

Total room load = 14909 watts Room ventilation in emergency = 680 cfm (Ref. 29) t Room ventilation temperature is 95

F.

Room ventilation constant = 1.09

680 = 741.2 Note:

This is the only case, in either unit, in which the air handling unit air flow is significantly less than the design air flow.

}

MC-6412 55 [t.)S l N-SHI OL REV.

PREPARERIDATE REVIEWERiDATE UTHT S PROJECT ELECTRICGENERATINGSTAil0N gjg 3_gy gp fopjg HOUSTON UGHilNG & POWER 3

/

GENERAL COMPUTATION SHEET SUBJECT UNIT is Chill water flow = 12 gpm (Ref. 32I)

Coil effectiveness = 0.7559 from Appendix B coil constant = 1.09

680

O.7559 = 560 34320 b/h Latent load = 4840

680 * (139 - 66)

=

7000 Note:

This is more than twice the actual latent load because it ignores the humidity removed by exhaust flow.

Because the ventilation flow is the same as the AIIU r

flow, the humidity removed by the exhaust will exceed the humidity removed by the AliU.

This overestimates latent load on the coil and is conservative.

Effective chilled water temperature = 52 + 34320

= 57.72

F 500*12 T,, = 14 9 0 9

3. 413 +7 41. 2

9 5 + 5 6 0

57. 7 2 = 118. 0 6

F (741.2 + 560)

Sensible load = _560 * (118.06 - 57.721 = 2.82 tons 12000 Total load = 2.82 + 34320/12000 = 5.68 tons This is the only room in either unit where the steady state temperature approaches the design temperature.

Mc-6412 56 [4:3l CALC NO.

SHT;-

OF SOllTH TEXASPROJECT REV.

PREPARERlDATE RtVIEWER10 ATE ELECTRICGENERATINGSTATION i

HOUSTONLIGHTING & POWER p

y,yj_

p_ q,. 9 g f,j g

{

GEMRAL COMPUTATION SHEET SUBJECT UNITls j

8.

RADWASTE CONTROL ROOM. TRAIN C. MAB 217 1

Electrical loads are from Ref. 11.

1 l

Conduction load and piping load are from Ref. 15, converted to watts.

However, the "use factor" for conduction is taken as zero because MAB IWAC is available.

Personnel load is from Ref. 15.

(Ref. 32.J)

AHU bhp = 9.2 hp motor eff. = 0.845 (Ref. 3) f heat to room = 9.2

746

1/0.845 = 8122 watts Total room load = 24375 watts room ventilation flow = 2000 cfm

-(Ref. 14) room ventilation temperature = 65 *F (Ref. 22) 2 room ventilation constant = 1.09

2000 = 2180 J

AHU cfm = 16519 (Ref. 30) l Chill water flow to coil = 49 gpm (Ref. 32J) l coil effectiveness = 0.4739 per Appendix B i

coil constant = 1.09

16519

0.4739 = 8533 l

i latent load = 0 b

4 Q

9 4

57 Oftf">> l Mc-6412

'NTHEE A

N-SHT OF s

9 PROJECT ELECTRICGENERATINGSTATION REV.

PREPARERIDATE REVIEWERIDATE HOUSTON UGHTING & POWER o

yf_

g GENERAL COMPUTATION SHEET SUBJECT UNIT ls T

= 24375*3.413 + 2180*65 + 8533*52 = 62.40 (2180 + 8533)

(62.4 - 521 = 7.40 tons coil sensible & total load = 8533 12000 This AHU is considerably oversized.

Also, the room does not contain safety related equipment (Ref. 22).

If chiller capacity is limited, this AHU could be electrically disabled to reduce both steady state and transient load.

9.

OTHER ROOMS The remaining rooms use the same methods and the same or comparable references.

The only room with a different twist (for this scenario) is MAB 226.

This room contains redundant B & C AHU's, which are both operable in the case being analyzed (loss of A train Safety Injection).

This is the same down to calculation of room temperature.

If both AHU's are operable per the particular scenario, the total room load is adjusted by adding the AHU fan load from train B and including the train B AHU constant in the room temperature equation.

F T,, = J 2 0 6 4 + 2_16

1. 0 )

3. 4 L3 + 2 3 9

5 2 + 6 8 7. 7

6 5 + 2 3 9

5 2 = 6 6. 3 5 (239 + 686.7 + 239) coil sensible load = 239 * (66.35 - 52) = 0.29 tons 12000 B.

FAILURE OF ONE CHILLED WATER TRAIN Failure of a chilled water pump or a single chiller leaves one EAB fan train and one Control Room fan train running without cooling chilled water flow until operator action is taken to restore the normal lineup.

The control room fan adds heat to the operating coils.

In the EAD, the air in the affected train will mostly be recirculated without cooling, because the air exchange between air distribution trains is limited.

In this the heat absorbed by EAB room walls will limit the heatup until operator action is taken.

l L_

l

n MC-6412 58 6 44 3 \\

CALC NO.

SHT OF SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWERIDATE

.l ELECTRICGENERATINGSTAil0N i

HOUSION LIGHTING & POWER p

v4 9_y_4y g

gjyg GENERAL COMPUTATION SHEET SUBJECT UNITls The spreadsheet in Appendix G tabulates floor areas and volumes J

for each room in the EAB, and totals the areas served by each j

train.

The length and width of each room is not tabulated.

i However, the minimum perimeter can be found assuming each room is square.

W = width = length = (area)%

Thus a low estimate of the surface area of each room (walls, ceiling and floor) is.

j Vol.

H = height (ft.)

=

area I

(area)*

H j

Surface Area = area

2 + 4

The surface areas for rooms in the EAB served by each train i

header are totaled in Appendix G.

l Assume walls are 1 ft. thick (most walls are at least 1 ft.

thick).

i From Ref. 31, the heat transfer properties of concrete are:

5 k = 0.54 btu /hr.ft.*F i

Cp = 0.20 btu /lbm.*F l

l 3

density = 144 lbm/ft a = 0.019 f t2 /hr Surface conductance for concrete = 1.5 btuf f t2.hr.*F i

~

i i

l

- - - ~

MC-6412 59 [d >,)

"'""2" CALC NO.

SHI OF SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWER 10 ATE ELECTRICGENERATINGSTAil0N HOUSTON UGHTING & POWER 3

4 c_y.9 % fgg GENERAL COMPUTATION SHEET l

SUBJECT UNiiis 1.

Loss of " Train A" Chilled Water System (See Appendix M4 for summary, File M4 for complete results)

This scenario results in all 3 trains of EAB & CR envelope fans running, but no cooling from the A train coils.

In the EAB, most of the heat load in A train areas will be absorbed in the walls.

The small amount of air exchanged between fan trains limits the affects on the other EAB trains.

In the control room envelope, the extra fan train sharply increases the load on the two active coils.

Rooms that contain A & B or A & C air handling units see an increased load on the other coil.

This particular scenario has an interesting twist for the EAD HVAC system.

The four trains of QDPS are located in rooms 015, 015B, 015C, & 015D.

These rooms are on the 10 ft. elevation and receive air from only the "A" distribution header.

If the "A"

fan is running but "A" chilled water is not, these rooms will receive only warmer air.

The A train return header temperature = 63.71

F in dual train normal operation (from a following section).

Case M4 header load

= 61.76 tons return fan

= 15.60 tons supply fan

= 36.40 tons 113.76 tons total

=

delta temp. across fan train== 4.52 + 14.23 = 14.23

F The A train area has at least 125000 f t' of wall, floor, &

ceiling at an initial temperature of 63.7

F.

l l

[c131 Mc-6412 60 CALC NO.

SHI OF i

1 SOUTHTEXASPROJECT ELECTRICGENERATINGSTATION REV.

PREPARERIDATE REVIEWERIDATE l

HOUSTON UGHIlNG & POWER o

g(

- g_y_ c ggg GENERAL COMPUTATION SHEET SUBJECT UNIT is Using charts from section 4.5 of Ref. 31:

]

0.54

= 0.72 k

=

h*L 1.5*0.5 The ratio of surface temperature (wall temp.) to centerline temperature after 30 minutes (0.5 hrs) is taken from figure 4-9.

0.56 for x/L = 1. 0 (x=0 is centerline)

T(x.t) - T_

=

j T(0,t) - T.

l l

at t= 0.5 hrs.

at/L2 = 0.19*0.5/(0.5)2 = 0.038

{

from fig.

4-8, temperature at centerline has not changed.

j T ( 0, t) -T, = 63. 7 - 77. 9 = -14. 2

'F T ( 0. 5, t ) -T, = 0. 5 6 * (-14. 2 ) = -7.95

F 4

T ( 0, t) -T, = T, g -Tre T ( 0. 5, t) -T,

= T,,g g T,,

0.56

.t Iroca T_at t T

Iwatt

=

room T

- T (T

- T,g) l et room room Conduction from room to wall = h

A * (T

- T,,gg) ra Ventilation load = 1.09

cfm * (Tair.in - Trm)

[

i For Quasi steady state Qventilation + Qelectric = Qconduction I

I i

t Ia i

I T

k i

a f

~,.

~

t

61r[t!%]

MC-6412 STP 36 t (1248)

SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWER 1DATE ELECTRICGENERATINGSTATlON HOUSTONUGHTlNG & POWER o

Q y-g qy a n i g jp, GENERAL COMPUTATION SHEET SUBJECi UNIT ls Q conduction = 1.09*38778*14.2 + 61.76 = 112 tons 12000 Qconduction = h

A * ( T,, - Tutt) = 112 tons

12000 b/hr. ton h*A=1.5* 125000 112*12000

= 7.15

F

( T, - Tnt t )

=

1.5*125000 0.56*(T

- T,g) = 7.15 re 63.7

F T

=

g 63.7 + 7.15/.56 = 76.5

F T

=

ra Tair.in = 76.5 + 14.2 = 90.7

F Use 91 *F for " trial coil outlet" in Appendix M4 spreadsheet.

Look at rooms 015, 015B, 015C, & 015D Total elect. load = 16500 watts

3.413 b/hr. watt = 56300 b/h Total wall area (minimum) = 2191 +1060 +865 +1060 = 5176 ft2 air flow = 3100 +1170 +1170 +1170 = 6610 cfm delta temp. at design air flow = 56300/(1.09*6610) = 7.8

F Initial wall temperature ~ 58 + 8 = 66

F Try room temperature = 88

F T = 88

bl:31 Mc-6412 62 CALC NO.

SHI' OF SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWERIDATE ELECTRICGENERATINGSTATION t

. HOUSTON LIGHTING & POWER 6

VfM F Y-13

@ ty@

- GENERAL COMPUTATION SHEET f

SUBJECT UNIT Is

-T

= 66 -88 = -22 T ( 0, t) -T, = Tct room T ( 0. 5, t) -T

= T,g g T,, = -2 2

0. 5 6 = -12. 3 Wall temperature = 88-12.3 = 75.7 Qconduction = 1.5*5176*(88-75.7)

= 95500 b/h l

Qvent. = 1.09*6610*(92-88) = 28800 b/h l

Qelect. = 56300 b/h 95500 > 28800 + 56300, therefore with air supply temperature of r

92

F, the room temperature would be r

below 88

F.

i Per discussion with Ron Falstreau (I&C Cognizate Engineer):

[

QDPS is qualified up to 135

F j

The temperature inside the cabinets runs 13 to 15 *F l

+

higher than room temperature.

The Limiting Condition for Operation (LCO) for the QPDS rooms l

requires an engineering evaluation within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months if the temperature inside the QDPS cabinets exceeds 110 *F.for more than

[

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months .

In this case the temperature inside the cabinets could exceed 94 *F for a brief period (roughly 10 to 20 minutes) but the temperature would not exceed 110 *F and would not approach the maximum qualified temperature of 135

F.

4 L

l i

i F

4

.7 i

L i

b

3 63 f,h 31 MC-6412 CALC NO.

SHT OF SOUTHTEXASPROJECT REV.

PREPARERIDATE REVIEWERf DATE ELECTRICGENERATING STATION HOUSTON UGHTING & POWER o

44 p_y_cy Q r ff/9.y GENERAL COMPUTATION SHEET SUBJECT UNIT is 2.

Loss of B Train Chilled Water I

The rooms served by the B train EAB ventilation header serve only B train equipment.

Thus we are only concerned with the posstble affect of higher B train temperatures on Trains A & C chiller loads.

Return header temperature = 59.38

'F initially (Section VII.E.1)

From M5 spreadsheet:

B header load

= 37.63 tons return fan

= 16.93 tons supply fan

= 36.47 tons Total

= 91.03 tons delta temp. across fan train =4.91 + 9.73 = 14.6

F Area > 32400 f t' B return hender flow = 30303 cfm 14.6 / 12000 = 40.85 tons ventilation load = 1.09

30803

40.85 + 37.63 = 78.5 tons 78.5

12000 = 19.4

F T,,-Tgg

=

1.5

32400 T

-T

= 0. 5 6 * ( T,,-Tg)

= 19,4 rm gi T

= 19.4/0.56 + 59.4 = 94.0 ra 94.0 + 14.6 = 108.6 T,i y

==

Use 110 *F as " trial coil outlet" temp. for B train EAB coil in case MS.

I

)

I l

i MC-6412 64 of43l j

, STP361(12-88)

SOUTHTEXAS PROJECT i

REV.

PREPARERIDATE -

REVIEWERIDATE i

ELECTRICGENERATINGSTATION y,[

fo_,f_g cgf) f g/g/g j

HOUSTONLIGHTING & POWER o

i

- GENERAL COMPUTATION SHEET i

SUBJECT UNIT is 3.

Loss of C Train Chilled Water C return header temperature = 65.86 'F'

'I header load = 65.86 tons

'i

~

e delta temp. across fans = 4.57 + 9.67 = 14.24 *F l

area > 74512 ft" 4

C header flow = 44301 cfm l

Ventilation load to area = 1.09*44301*14.2 = 57.1 tons l

12000 i

ventilation load + elect. load = 57.1 + 65.9 = 123 tons 123

12000 = 13.3

F T,,-T.t t

=

w l

1.5

74212

l i

T

-T

= 0.56*(T

-Tet) = 13.3 rm watt rm T,, = 13. 3/ 0. 5 6 + 6 8. 6 = 9 2. 4 92.4 + 13.3 = 106.6 T

=

y pty Use 107

F as " trial coil outlet" temp. for B train EAB coil in case MS.

I i

5 4

~

sw m o ns)

CALC NO. Mc 6 Hit SHI 65 0F 84 A{

EC RC ENER Tit GSTAil0N REV.

PREPARERIDATE REVIEWERlDATE

(

HOUSTONUGHTING & POWER o

GL 1o-5 93 64h /VdPJ GENERAL. COMPUTATION SHEET SUBJECT UNIT ls Loss o F " T R A n) h" eoE FtNJ TR4/d

( N'7 )

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(Mq)

STP 361(1248)

CALC NO. LAC (Af L.

SHT &

OF 4hl REV.

PREPARERIDATE REVIEWERIDATE E RC NERA f STATlot; W/[

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HOUSiON LIGHTING & POWER o

o GENERAL COMPUTATION SHEET SUBJECT UNITls f b fact cd d Ltid e

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1 ST P 361 (1248)

CMCNO. RC cq,2 SHT b7 OF42l

/

SOUTH TEXAS PROJECT REV.

PREPARERJDATE REVIEWER 1DATE ELECTRIC GENERATING STATION

(

HOUSION LIGHTING & POWER o

V1[

/>S-fJ de 'o///n GENERAL. COMPUTATION SHEET SUBJECT UNIT Is fW k-s

/,04H.-

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CALC NO. D L W 8 2-SHT b8 OF 4N SOUTHTEXAS PROJECT ELECTRICGENERATINGSTATION REV.

PREPARERIDATE

- REVIEWERIDATE

(

HOUSTON UGHilNG & POWER 0

4 fo-5-9) dea u/r/t.7 GENERAL COMPUTATION SHEET l,

SUBJECT UNITls r

f Tr)rnA L Tf Ad SI aJ T -

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3 i

k

(.c t 44 A 4"4.,

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CALC NO.

'E ( 4IZ-SHT (>4 OF 47-J SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWERlDATE ELECTRICGENERATINGSTATION

-(

HOUSTON LIGHTING & POWER D

V9/._

p.51J M /c/r/n GENERAL COMPUTATION SHEET SUBJECT UNITls 1

r

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CALC NO. tA ' W '

SHT 1o OF %l SOUTH TEXAS PROJECT REV.

PREPARERIDATE REVIEWERIDATE ELECTRICGENERATING STATION

(

HOUSTON UGHTING & POWER 3

Jg.

,.cg 3 cp <offfg GENERAL. COMPUTATION SHEET SUBJECT UNIT ls jl459tFICt\\1tod Fat AssatAP7 tor) oF coa)s7,V)T RE7 URN /rt2 Tf/11).

Yo P-TRA tJ GIC-1JT A N /A L-Y l_5 el$t itctnto. N A <c. D A.tk n>-

it Mt x

'.ww /

% h A S L R,

str-k

= 12 s,000 St (App. d Eg_.

k

=

1. 5 Entf.y a p,. of V

a

/'F

$r p Lc tm4_ Lw /m 5 m,0.

Fn

.5 q:

I. 5 QE!

I25000 Si I 'F 188 c l0 iV

=

tw y p 1

= 15.G b cSu ( 4un :L da'4n lleA

)( ifn

) &,3 h 3 54ZD p~ cJa ), thu ca. J f k l % & prv A s

L *r =

\\.T{ v lO b/tz~.

'l 9

f u8 N, w oss.

t-v(d

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=.

1, o g 3542 0 a

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STP 361 (1248)

CALC NO. E (Att SHT 7i OF '4 31

{

SOUTHTEXAS PROJECT REV.

PREPARERIDATE REVIEWERlDATE ELECTRICGENERATINGSTATION

'(

HOUSTONLIGHilNG & POWER D

g}_

io.y 3 Czt.& e./r/py GENERAL COMPUTATION SHEET SUBJECT UNIT ls I

\\hy (%r svJla is45uEHBueAw &

IfA DGh-.

Lhqu e 0.3 luh OW$

/s.ma.oud te( Ac:rvvt A Td A.

/

f7Soo fd' 6(

0,.$ x 125 oo o

=

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l

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1,7 t io bro Pc/F i

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STP 361 (1248)

CALO NO. ML Mit.-

SM 7 'l

& M '.

SOUTHTEXAS PROJECT ELECTRICGENERATINGSTATION REV.

PREPARERlDATE REVIEWERIDATE -

-(

HOUSTONUGHTING & POWER o

4 g 9) M to///ty GENERAL COMPUTATION SHEET f

SUBJECT UNIT Is eLilRI c A 6 u b + / M ct_ Zc o ' Jtru v_4u._.

cn Lc>ltkt<9 4 sa&l&) CHIAbbG L

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STP 36t (12* CALC NO. tac - M it SHT Ho OFd$ SOUTHTEXAS PROJECT REV. PREPARERlDATE REVIEWERIDATE ELECTRICGENERATING STATIOhi-(- HOUSTON UGHTING & POWER D V/l io-543 cme /fdr ~ GENERAL COMPUTATION SHEET SUBJECT UNITls S T i C-ALua h <u, sk. s~ Teq i 30D % = $D *F 3o3 @ dbf kg c) 6,/ x I2D o o q, y 5oo x 6 36 PlGush Tv.g. = 5 o -+ 9. ES = 5 9. 25 6.E 7 _16 i o ATg ( = .soov [ & 36t 3/D 5 7. 95 - c.r? - 53.2 s '5 >p G kcl 1 T. = 3 % O *F Wo rJ wma

1. 3 of icwn J~dC A AmppA'g !Vk 7.

T/2 7 b,p tit tn u 7 nJa luk T, u 2L1 & h f,D) 719 'l x t. 3 = ^169. 3 _ ] c7,3 x i 2o o o .~ to, o f zyb'~ 500 y G 3 (o fGb%uk I : 60 01 0AL LT,,g = i-gyz' NL T 43 3'7 'F h %g( I t J.!/

f ;.aun ~/

j

STP 361 (1248) CALC NO. M c 6,y r2 SHT 'l7 OF (J 31 CTR C NE il GSTATION REV. PREPARERIDATE REVIEWERIDATE ( HOUSTON UGHTING & POWER 0 Vff._ to-5-43 Ceu9- /of.r/92 - GENERAL COMPUTATION SHEET f SUBJECT UNIT Is V6 0h lffi$d#' A O ') / LppA r3. L.L (MU 60 t

0. A 2YA A.

,yu nnwnacaty - en LA e dw cidl & %q, = sus *f A o]p 4 a a v & nuto urn a 4 -um ws cts, qap% 2 /,4 A A /gp J j $-o

wpw, LL nm>J,n% cm ukk c m

\\vg I,9*F. Cd udk)

56.9 + I A

G L I 'F 1 i l i f 2 -.f,

STP 361(1234 CALC NO. W M 12 SHT 'l8 OF Cl SOUTHTEXASPROJECT ~ ELECTRICGENERATING STATION REV. PREPARERIDATE REVIEWERIDATE ( . HOUSTONUGHTING& POWER o Vfg_. fo-5-13 649 <?/r/J3 i GENERAL COMPUTATION SHEET SUBJECT UNITis ) i /LMnM CArcU ku fth3 NdA C Tlu. -foN M 6 Iq@1n. luw< TGcil 5PEc {pp% V4: I Sw&L wt Rawa.- S B 5

F O

( olo ata, j 3/9) Q b Ps 9 m% s M 'i~ ( oys ist< abas I cu. Q s ) l ( Is, IS B 15C,7 /Sb I 0 i i i i i om pi9 218 ots oisS CISC ot5b A" % ~ i bE CIAh [gik. [LOV/ IlboO l$$00 {qs30 3too gigo 170 117 0 i y nav M Tul? 55 Es 55 55 ss 55 55 i C fstC-trAlo4 air " ' 19.8 30.3 60.l (,7.7 72,3 63.8 75.1 ct t c. s w 1 toAb 4.80o E./ r to # 5.2 <io# 'l.3 d L'L < 'Y l.7, lo" Lfdo" 5 i t MM60} TO T6(H SE( 5,2.

4.7*

Y. i ' 2.6. l

7/ 7 36.2
f 30 *

-ss -S .a vs <3 l%,%g Ctd L 5't,7

11. 3 6J m.1 J.9

- ( > M.Ns3 khu. ah'hs c. r y un.u k ad.La) fu fund f n b m /2 uc c~dd.l Lg.p. <h. 4is raJ r.% w.a m t e ~ N [;-

i C

'LL. : 4.{h.L>3.<a:., (C,1 VL( htf tut, &. Ob !? J/;Nbj,jj l , cab J6..3% r. G ; w ..w c G h iE *F /t ! Y r. w.m ',(LnjL O2:5. 4. y ~ t. l 1

o I sTexw24m CALC NO. fA C 6 4' 2-SHT T9 OF 43) [ SOUTHTEXAS PROJECT (. - - ELECTRICGENERAilNGSTATION REV* PREPARERlDATE REVIEWERlDATE VR /o-5-93 Ca&n/rkr I HOUSTON LIGHTING & POWER o GENERAL COMPUTATION SHEET i SUBJECT ' UNITis 9 A / SL hkSp uAu mA ma. >x - A tL cas s A e m u. c j p \\m m~k Ma La k keh h a L /ud,Leodo A.d anolw'm -tkuPfvane. t2 th Lay ,v - vL gm w & andJ//w nm,nsaw ugubu aown, tL / ( g OAw9 Au Iw,u wuaAu u ble flu aktve % o suW ck. a 6 l l } 'I t

swxi o288) CALC NO. fac WiL SHT 1 oo OF 431 R NER D STATION REV PREPARERIDATE REVIEWERIDATE -( HOUSTON UGHTING & POWER D J// /o-5-43 Cee--/oA/ey GENERAL COMPUTATION SHEET SUBJECT UNITis F$c daa reMsra Hoba, Loi% l dAk r%<WM (app h 4fd, b, f E O 4 Wac .h scvv sem quaw , h&. Erh3 l CavXi A w> a x q @ us. h M,msNy~40)c$m '? %d u.a 6 o M euack,sek. Tshd,Lt-ob 24 h'N h l l<

':Cr)k n adush u u%r o"U k k red l

%,J 4%. -y/w Au e.wg !* ok <9 a m id e t w,( i d # #. maa n oh JbJLA $ e2Ur%gw Lso - fl.q a rAo ~ wkp i a,A JA uy J. -JL b a,Ata<L e t A,a e +s a s ydcl-Jpw4m,

l i i STP 361(1248) CALC NO. Mc- (,4i L SHT ID1 OF tJ R1 SOUTHTEXAS PROJECT REV. PREPARERIDATE REVIEWERlDATE ELECTRICGENERATINGSTATION (' HOUSTONUGHilNG & POWER 0 ijff-p-5-43 d2B /e/r//.7 i GENERAL COMPUTATION SHEET SUBJECT UNIT is z l r 'L hld6 /NI'/I Mh cell b cM

6. % =h.d,da %.An bo J%uY6 =

00. k iLbtdQ ' /$ G C4 i

4 TwhCAbGGW'

00

.L&th /LLrtr c sk o.h = tLuudh>%Le'u-L nwaA % k -h T, N[.,04d tbd bLM M}N$' vm vt ed a M p ch Mumf f r "YW k l,k2h ,Lwk ,sG,& / %fL = Lu,un ej u L %, 6Lu j ^ uv%=naswwwwe mpe+ > p~ ddi clad rx y ;u sM n a dw+ EF. = b b'3 Fadict -ftem EL dj i

uJ m wuw dL W NaNb y.

P. o. e 4 km f g f a

l STP 361 (1248) GW E MC WG M ID L OF443/ SOUTHTEXASPROJECT ELECTRICGENERATINGSTATION REV. PREPARERIDATE REVIEWERIDATE ( HOUSTONUGHilNG & POWER o 4

l. 4 4.3 -cab ro/r A3 GENERAL COMPUTATION SHEET SUBJECT UNITls

l title )h Dd. f 62 fo A /d _. IN

/tr.c__. 7 qhAAp.A. QA _ rn fAA_chd m. h cTJ % tL A m ijh_l_saA d p AEt, ad e $ 2 p 19 4 Q st 9 g c d c.a h i<J J w n LILJ 4*A yfy

144 k m.c a ussa9 is ua ; Aizar nJ i

,.,.Q h , /d h (,) a Tli E FF 10 ~bu si N.ub u N m a -aI i ^\\ L CU J i I

i sw son"* CALC NO. MC. 6 4I Z-SHT I03 OF d 31 SOUTHTEXAS PROJECT REV. _ PREPARER 1DATE REVIEWERIDATE i ELECTRICGENERATINGSTATION -( HOUSTONUGHTING & POWER g # A-d-93 M /s///f.r ~ GENERAL COMPUTATION SHEET l SUBJECT UNITls f\\PPc131.5ix b 2 hs%S A /).<O 'f , b:Nb d M a w ' p db ~ u i i Y V % ~ m % be v3 { B6 our p aw id a tin d /\\ s a,d n v \\ % ltus % 4lr wdul a i Au{hJ in Mm p1 wwut lalo. j t 0JA.2) EFF SPGG, k phsusd v A W fx' u 5 l = aes,y s /CA ^ k/ -n%\\h e M d 3 l i l - i

STP 361(1248) CALC NO. MC-W81-SHT f o 4 OF431 E C NE Tl GSTATION REV. PREPARERIDATE REVIEWERf DATE - t HOUSTONLIGHTING_ & POWER o 4]f_. lo-5-f3 G&& <*/g/yy GENERAL COMPUTATION SHEET SUBJECT NITis Aep& E bQ%/ del e fik repp.,zy AFF c&L} dsk 'h il tu.a au n La %;p pip a, vA f y y a. 4, t,l r,u+. _Q g Q IL} l'j T I Au t b, u4W brYr.5l 07 'n

Cchad hu let

CALC. NO. MC-6412 SHT. OF I [bpA/tst N IO f8 8/ $tJ 0LD. tuls)J 1 i l FACE VEL 600 2 f CAT B/H/ SOFT 10300 3 DELTAT to 4 5 TAtR_IN 88 6 TAIR_OUT 72.3 7 l VTUBE 2 8 .I WTR OUT 55 9 f TWIN 45 10 TFACTOR 45.03126 11 TWTR_EFF 45.03126 12 CR 0.634951 13 EFFECTIVENESS 0.365382 14 l XFACTOR 1.10008 15

l EFFPASS 0.215167 16 17 i

LMTD 30.04331 18 SENSIBLE O 68162.31 19 U (uncorrected) 7.853983 20 j CORR. FACTOR 0.993179 21 i GAMMA 0.153839 22 NTU/ PASS 0.263084 23 l U 7.907921 24 ho*Efin 11.69355 25 ho 12.51192 26. f GPM 13.67521 27 TUBE OD 0.645 28 TOTAL,B/H 68376.07 29 SENSI.B/H 68162.31 30 f f LENGTH,1N 79.66144 31 OD 0.645 32 l 1D 0.591 33 NA 8 34 NR 2 35 i NF 8 36 FT 0.01 37 i 11. ' 79.66144 38 SCFM 3983.072 39 l HREF 12.6527 40 'l GREF 5148.741 41 N 0.576505 42 KTUBE 228 43 l 1

CALC. NO. MC-6412 SHT.106 opp

y

._3 5_yy [g,g KFIN 228 44 NW 8 45 . TFILM 50 46 Ri 0.0003 47 HH 12 48 TT 0.027 . 49 WW 79.66144 50 DD 3 51 AFIN 272.372 52 l AOTUBE 16.50073 53 ATOTAL 288.8727 54 AITUBE 16.43399 55 + ARATIO 17.57776 56 MINFA 3.481205 57 FACEAREA 6.638453 58 l MASSAIR 17923.82 59 I l FACEVEL 600 60 G 5148.741 61 HAIR 12.6527 62 i M 11.54064 63 FINL 0.041283 64 ML 0.476426 65 FINEFF 0.930631 66 ETAo 0.934593 67 AWALL 17.18478 68 Rw 0.000166 69 Ri 0.0003 70 HWTR 495.161 71 l UCOIL 7.967876 72 l Cair 4341.548 73 Cwtr 6837.607 74 Cmin 4341.548 75 Cmax 6837.607 76 i CRATIO 0.634951 77 NTU 0.530157 78 NTU/NR 0.265078 79 j GAMMA 0.15491 80 E 4 EPASS 0.21649 81 i 1.211905 82 83 }i EFFECTIVENESS 0.365382 84 THEFF 0.367283 85 i- -i r

swaew2** CALC NO. Mc 69 : 2. Sgt 107 op <& SOUTHTEXAS PROJECT ELECTRICGENERATINGSTATION REV. PREPARERIDATE REVIEWERIDATE i .(- HOUSTONLIGHilNG & POWER 3 W/d to-I-13 ee& to/rhe GENERAL COMPUTATION SHEET SUBJECT UNITis Nhh,,,) M t l/hm 44f 90 da.EL kw1, 0 -> /0 i i TOTAL, B/A - SetJst, 3/f]) Td_It) + -r FAcToK = (soo x 6PM) i

l TU./AI f TR4c7sfc' N wt TWTR_ EFF

= .y.weu.wn _cJ cd TFAc W u.y udv.o f4x l d (lb.jlm di Lin. ~iLJ 10, ']lh $f k.4ll nm 4t6. l i CR= C m e_ (LJTR ou - TWTESFF) _ = C <n n y ( TArR. irJ - T'Ai2 ouT) o e 1 6 &.a u t a ;- E'FFccrivefjesS : _73,g, 3,1_ Tw, g, oy7 - a2r y ~ q :I;> 9'%w. tar R. ItJ - TWTL EFF i d ~ yFAcrot =. f i - EFFECTP)ft)Er$ x C R g a { N \\- CFFGcTIoEtJ ES S W$% e** on

na u p g=

,_c, / 4 y i _ c i } u cp c :Jc. 3] t - Ep L n.,. l 4 c +<~. ce : Iml I t- .. w o,: : o. I - Ep } % Leg Ml XFAc7 a

STP 361 (1248) CALC NO.- - (4 c-W t '1-SHT /0 8 OF V51 SOUTHIEXASPROJECT ELECTRICGENERAllNG STATION. REV. FREPARERlDATE REVIEWER 10 ATE -( HOUSTON LIGHTING & POWER 0 V4.L. 10-543 e <-/s/n GENERAL COMPUTATION SHEET SUBJECT UNIT Is GFFPhSS : 9 = ( 1 - KFAcroe ) jw Ll%.f YFMmC ( C R - XFAC7 oil ) Adod]cT Ee Eurb = 6,,tk Tag Q.-= kTM.Iti-wrR cud- {T!wLouT TWTE EFF g (Targ_u; wraou-d (-TA d.04T-TuWF) GOO r 61Yl4fLJTNOUT'T'UidEff] sessiSLE & = LW e std')= G 1 LuTD AleA C oR2. facto /s /se uerb)= LA 6cmctyJ) _ fl-LL utu p~ h ce L swXg &IwA. t%Lto slwA lu - L 'j l.5 .h a u+ c Lost- +o,lud Atd m.a) n.Ljaaf fO' G At#h = - CR

ul ( (- EFFPAS S h (ty,)

_rc., [ /- d_ ~CE 4hI I tab b cre. z a n p a na qw p. t i l I

STP 361(1248) CALC NO. E WtL SHT $ 9 OF U3/ i SOUTHTEXASPROJECT - ELECTRIC GENERATING STATION REV. PREPARERIDATE REVIEWERIDATE i ( HOUSTONUGHTING& POWER v

[_

10-5-1J C49-oAA_r GENERAL COMPUTATION SHEET SUBJECT UNITls i L h . - ~,c "2 \\ C=l-0 fy' d { 1 i . A; p tara, & Lorgecupm. i l) = !!TUkAs s

Cak )

Canva) [ Qvn h.( 1En b IIId

b F'

b f uu - y p.:n ^ '~;- i LO & $^ 0'y .A*W,4Q / s vcca nLs w+ 6 unu anAu }A. 1 i l I i I l I

i 5TP 361(124B) CALC NO. Mc b4tb SHT ti o or 43/ SOUTHTEXAS PROJECT ELECTRICGENERATING STATION REV. PREPARERIDATE REVIEWERfDATE j HOUSTONUGHTING & POWER o 0$ lo-5-f) Case sofr/fy j ~ GENERAL COMPUTATION SHEET SUBJECT UNITIs i -I ~ bcEg = _L _. b Amrit _ AR ATio x R L,' i k Hwrit 3 in = h, v EG c;,, a cya, E7Ao A ct. d ewu a i lu_ c.+b2 0I Af p d t-i i SPM= ti~u & ll\\d y (, t 7 \\ );}e-wt 1.l*7e GPM y h)x h Ff~ ti:m A M cd) Anu7tucZwo j i kJ = h d miLH &s. 'k = 7.5 cd.f wm i t

) la Euund.wL( L i3 " l O k

F' L le.0 6

d [ gldo ]y). 4%f>r.sd.,) TH a E Ob =

0. 6 VS 11>7AL uo.9b, 2 % g :

Cao x Syl - (UTl04T-M t/b 5 a35t6LC Lo C, B7uh ?: C. 4 ( rM). pJ - TI\\ s. OUTb 4 i

i siesei omee) CALC NO. MC L 0 2-SHI 11 i OF 431 SOUTHTEXASPROJECT REV-PREPARERIDATE REVIEWERIDATE ELECTRICGENERATINGSTATION t HOUSTON UGHTING & POWER D fo-5-fJ Co9-1c/r/if l 1 GENERAL COMPUTATION SHEET j SUBJECT UNITis rme ws

12. A tenru,in (ef A) =

ChTEa4 ErVM/FT

kt

,p N juy fw am li J uxpgit g Fy.tc Sm I L-t # $!u Ab'rML N /(Lt w C^- ')' \\.t.. rsm& &s 9M. G f ,. dJ we h g, c, 4 b, AL $.AJcJ j orAvEak ( wh,ck L-,0.02r'O I i / e & Iwd L yn uf,, u

n. sm z.

p as~p q qay ,1auun JL ) a c~ e e ace +wa ,,a r ca gg, L y y y -p4 wa A ta g j i7zf (, Jn ) r y at (? t{c, g s w f_p( t u l .i

- STP361(1248) CALC NO. % L 65.(' L SHT 18

OF 43/ ~

SOUTHTEXASPROJECT REV. PREPARERIDATE REVIEWERIDATE - ELECTRIC GENERATINGSTATION ( HOUSTON UGHilNG & POWER 0 T7k 10-5-4 3 da s < /r/a GENERAL COMPUTATION SHEET SUBJECT UNIT ls g _ NN g 5GFl n A FAcrAegA hM 6 q scWff ' ri C, JQ G ' = sci ~/A//f

h1 4, 'z

/ I- -Q tu c4 m / / JA Q '\\ g ~ h g L. 1 k k, - M km sw m M6l - h 6' Sa v, = ;J 2.us3L z.s 8 72, = A. h.- js (, o o r7 46) :

2. 3 c) Y 3 z 4 7

lu 4: M ( boo) = 6.3TL T3 L 6, - A ( 400) = s.ss i ys s n= .3537 7 9 - 2.Sou P 9 =o.nyg3 / 3'i 6 9 3-6.14 r v 6 S

i i STP 361(1248) CMC NO. MC L 'i + SHT 11 3 OF W 4'I i SOUTHTEXAS PROJECT l ELECTRICGENERATINGSTATION REV. PREPARERfDATE REVIEWERIDATE l (' HOUSTONLIGHTING& POWER o yk fo.543 @r ffff,7 l GENERAL COMPUTATION SHEET SUBJECT UNIT ls 'YU ~ g f s' h w = /2: 6ussc ud i ^ bbdO D I x. bO-d / g i /n<.Jd cLg a h 6a mau b um m-y 'bx H72 P l & 1ck A & Vo. fba lh"EF } w J : ~ v L s;) a & L d m y 1. g, a f L w ] 3 Ag, un cL usent n. ;& ~ i W ULL'.*A. ~ e n i i l Il i s 1 6 I

t strasi ti24e> CALC NO. 'A(- (09 t '2 SHT 11 4 OF d31 SOUTHTEXAS PROJECT REV. PREPARERIDATE REVIEWERIDATE - ELECTRICGENERATINGSTATION

I HOUSTON UGHTING & POWER D

//h 65-O Ce r=/t /; a GENERAL COMPUTATION SHEET l SUBJECT UNilis 1

e. su Ls A.u___.4_ 4. -. _._._._C/.M._- a)&FLJ g_

_% cn% da i l fIL o/L LG J u A w.au g b n km len ahnw0s g m~4L L 2Lwg L1lLclLL iL mL ody td stJ p aan, f e r [or ~ E ct% r 'my I -J LOUD 'b v f/LLO vb kLJb j uus n a ? ava -d-cab. m u ia es(s 0cc: nc-O ak -r I cxkl det y kor re d /r d u o Ns lat\\< nRd perbeuc. 6w r, i nkiced e%d h kk cH.\\\\ch aA cc Q\\oa %s a s CSF Du n P Saat.1 c ooLEL 3 These coolers in brn h0H-i c+ cm h o ll i n ckkc cd on dia 4cc<ns'ient l ood. I un godtd b4 cL.:\\(J ook<r flou to 3i is 4c c 5 F i'u u P fooii c oc:.tr s rloT acera TGE . p.o hCCisd FL o td. 67.5

i sw m o2*) CALC NO. MC-IM t V SHT 11S OF 431 REV. PREPARERIDATE REVIEWERIDATE -E C NER Tit STATION ( HOUSTON UGHTING &POMR 0 yl-

f.43

& & o /r/77 l OENERAL COMPUTATION SHEET l SUBJECT UNIT ls il cxdaho Nt.e re n Hs b YlIe 5ensi$$r'$y l}pavike way sh rF cil p%-ce vs. cM uk e Slaw. c m aMc p s b e d is k % wa i i bgAvb b ~ b C-W Wd LL 4.b O -ilu.4kct %d ') [u qw4)ud wa %nu uca, a ~ un L sw < L_.c j +o o a5 ha, n FJoo cu~( i 2 ou i e a' r O N k o b D tb7., (v 'n' E J d3, ,L W C e 75% = t%- E d 7s n q b 'j, } b CD als - t,.w r E <dtzs1,,{Luy>.f.a v u a = ( o. g, - ca 7s D y,g te oi m t

STP36102M CALC NO. Mc. - WL ' SHT 11 9 0F d31 SOUTHTEXASPROJECT REV-PREPARER /DATE REVIEWERfDATE j ELECTRICGENERATINGSTATION ( HOUSTON UGHTING & POWER-o Vf/ /o-5-43 C# <a/r/a GENERAL COMPUTATION SHEET SUBJECT UNIT is i ()\\b CC-hd CWh ESE $L%f TC & M LL Lm &w & av d % 1&nueD T i e d(b p Atl4. ] j 5.

\\

f A % ti e EF Ppap seca det(va i tAGk l Tud 8. fLL, h lua.m T[A Acnu umA /g L b <~c dm im s 1 q us, w a w d n a arie a a A o,; 4. i f)MM Y Q.C % G t h.S

LL (E? lUuf D%

i' b L c4 sS c)pw i H. vo3 d. A m 3% _etu _say M x'. p d d J / N e o )fu;m I'ryjMedis,eV/, m , /. i q.. T) . 0f l.s.c rs,Qs v.l Jjus, G f \\ {y(' {.\\ +((. %\\)) U2.xuw ~ i i 1 , ~.

. -. _ -. ~.. .~ swxunes) CALC NO. MC-- bM SHT ti~7 0F d * ) REV. PREPARERIDATE REVIEWERlDATE TR C NER t STATION ( HOUSTON UGHilNG & POWER D (14 /t>-5-0 C4E>-co/f/s ) GENERAL COMPUTATION SHEET i SUBJECT UNIT ls i IO I T (b M 4 CM L 1,vJ u 6augpps W Wt/u g m j wui_ wa ua a s -w,uava -a e bb ~ ct, [A, Lk,(Shw. o V\\ EFF Pa p i i n, Y lct [ ] r a,a i e n + fo acl' n, ' ;c i lGr k { DEW 1 Y N 1., GJ *$ ( c. h% S c^- bcW os b Md +co-s a l /ca J; j y .ies c LG H ecP ushe c % a. Pay I l,'t ?.v c { {mw 40 de VS 7[>m no vnore Syxn), Hz.<- 1ru c<< d.fo d 40 < m2 IS T C^(. l> (J $ 3Q Cr 00) 0 &'~0, 0 ,i \\ Ch 6 /- \\YC C M. A UJ/Al~- f. ( h IO J-% 'A ' ' 'i' bv & D*'\\ C (tJ a, UM G*] C.'c .k Ix:: - ' (,,s:,,4. r_ N! <^' ' '.. { U r., k L, %L N i i i

r STP M4248) CALC NO. fAC leW SHT I 8 F OF431 REV. PREPARERIDATE REVIEWERIDATE EC NER I GSTATION '(- HOUSTONUGHTING & POWER o

1 to-5-ff hee /r/n GENERAL COMPUTATION SHEET SUBJECT UNIT is an) t[a cnd cerAh& ( a }n Atta sn&<~O Jcq aJu a % b bek AAdta, Sf SWs S&c m k /{(A 's h~

btt CM G 5 4v<y y JuaLa &+A & oba m n

p. aa( w aa~

5 % }to As h uoud.vuta) e 7 n p,LW at%m.a pa enu:%,

1L ocuJ & ;G; k spakw cL% qwR.

Ox osg n aoo m I ? t i l f i i J E

VtGa RG L siesei n2een CALC NO. IAL W t L SHT I W' OF (J #> l SOUTHTEXAS PROJECT REV. PREPARERIDATE REVIEWERIDATE ELECTRICGENERATINGSTATION ( HOUSTONLIGHTING & POWER o-ML n-5-15 em 'c/r/n GENERAL COMPUTATION SHEET SUBJECT UNIT is j F '5 0'o 25 0h

ic 3

s as A

33 jL st a mz h 1 JL j e2 a u , ~e <a . 5 m oa u, w 3 x g 2 2 2 x Le ag at 28 gmt s a <We z v 8,

a we Vx e

i kw if 5* ~ I a t l gm ._ a 1 $u3 v s /\\ /\\ /\\ kM a m 4 > tL v> b'a h w s, /\\ a /\\ e /\\ ~$ s v a ca s-pj f 42 d 82 5 e2 a Jt. c a tu '2 N / va E &a ~ ~ g.}}

ML20058J559

Text

SUBJECT:

56.9 + I A

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