ML18227C904

Letter Transmitting Copy of Revised ECCS Calculations Report Forwarded on 12/30/1976 with Several Revised Pages to Improve Clarity

ML18227C904
Person / Time
Site:	Turkey Point
Issue date:	01/03/1977
From:	Robert E. Uhrig Florida Power & Light Co
To:	Stello V Office of Nuclear Reactor Regulation
References
L-77-1
Download: ML18227C904 (49)

Text

DOCKET NUMBER NRC FORM 195

{2.16 I ~

50 251 FILE NUMBER NRC DISTRIBUTION FDR PART 50 DOCKET MATERIAL TO: V. STELLO, JR. FROM: FLORDIA POWER & LIGHT CO. DATE OF DOCUMENT MIAMI, FLORDIA 1/3/77 R.E. UHRIG DATE RECEIVED 1/10/77 OLETTE R '0 NOTOR IZ E D PROP INPUT FORM NUMBER OF COPIES RECEIVED IHI ORIGINAL lHUNC LASS IF I E D OCOA 40 DESCRIPTION ENCLOSURE LTR. RE. THEIR 12/30/76 SUBMITTAL..... RESULTS OF THE REVISED ECCS CALCULATIONS SUPPLFM~AL INFORMATION,......

I

( 40 CYS. RECEIVED).

( =20 PAGES)

DQ NQT REMQVg CRNQWI@DGED PLANT NAME: TURKEY PT. ft 3 & 4 SAFETY FOR ACTION/INFORMATION SAB 1 I1 77 ASSIGNED AD:

N

'P C MANA E PROJECT MANAGER~ ~ ~

C ASST 0 "PARRISH- LIC ASST INTERNAL DISTRIBUTION G FILE SYSTEMS SAFETY PLANT SYSTEMS S SAFE

~

NRC PDR HEINEMAN TEDESCO I&E 2 SCHROEDER OELD GOSSICK & STAFF '

- ENGINEERING IPPOLI 0 MIPC MACARRY ERNST CASE KNIGHT BALLARD SIHWEIL OPERATING REACTORS SPANGLER RLESS PAWLICK STELLO SITE TECH PROJECT MANAGEMENT REACTOR'AFE OPERATING TECH '- GAMMILL BOYD ROSS EISENHUT STEPP P COLLINS NOVAK HULMAN HOUSTON ROSZTOCZY PETERSON CHECK BUTLE SITE ANALYSIS MELTZ VOLLMER HELTEMES AT& I BUNCH SKOVHOLT SALTZMAN J COLLINS RUTBERG KREGER EXTERNAL DISTRIBUTION CONTROL NUMBER LPDR NAT LAB TIC: REG V.IE ECCJ'6 NSIC: LA PDR ASLB0 CONSULTANTS. J ACRS YS 89hBBf8'/

r h

8T 'Og k

~

j)

H

g

~egVaa'os . fjl0 Cy,! P. O. BOX 013100, MIAMI, FL 33101 gQll/gg 0GOym

+/p naP'LORIDA POWER 5 LIGHT COMPANY January 3, 1977 L-77-1 Office of Nuclear Reactor Regulation Attn: Victor Stello, Jr., Director Division of Operating Reactors U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Dear Mr. Stello:

Re: Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 ECCS Reevaluation

~Su lemental Information On December 30, 1976, (L-76-438), Florida Power a Light Company forwarded the results of the revised ECCS calcu-lations performed using a rated power level of .2200 Mkft:

Several of the pages in our December 30, 1976, trans-mittal have been revised to improve their clarity. A copy of the revised report is forwarded herewith.

Very truly yours, Robert E. Uhrig Vice President REU/GDW/hlc Attachment cc: Norman C. Moseley, Region II Robert Lowenstein, Esq.

P EOP LE... S ER V IN G P EOP LE

il

~" ~

I p ~

I 'P p ~

N 'r.e 4 %I E

I A

J s,/ ~r JP b' p' j(

U Po k

W I,

I' E't E I

1 E p

I E

l, t

ll

~'

~

( ~

TABLE 1 LARGE BREAK TIME SE UENCE OF EVENTS STEAN GENERATOR 10% TUBE PLUGGING DECL (CD 0.4).

(Sec)

START 0.0 Reactor Trip Signal 0:595 S. I. Signal 0. 67 Acc. Injection 16. 3 End of Bypass 27.52 End of Bio+down 27.66 Bottom of Core Recovery 46. 59 Acc. Empty 61. 02 Pump Injection 25.67

'I ~

P A

II

'I, fl

TABLE 2 LARGE BREAK STEAM GENERATOR 10% TUBE PLUGGING DECL Results (CD 0.4)

Peak Clad Temp..'F 2190.

Peak Clad Location Ft. 6.0 Local Zr/H20 Rxn(max)% 11. 922 Local Zr/H20 Location Ft. 6.0 Total Zr/H20 Reaction <<0. 3 Hot Rod Burst Time sec 22. 8 Hot Rod Burst Location Ft. 6.0 Calculation Core Power Mwt 102% of 2200 Peak Linear Power kw/ft 102% of 12. 61 Peaking Factor 2.22 Accumulator Water Volume (ft3 ) 875 (per accumulator)

Fuel region + cycle analyzed ~Cele ~Re ion UNITS 3 and 4

'4 '

V V 4 p 4f 4

1 V

~

~

4k TABLE 3 /

LARGE BREAK CONTAINMENT DATA (DRY CONTAII61ENT)

NET FREE VOLUME 1.55 x 10 Ft INITIAL CONDITIONS Pressure 14<<7 psia Temperature 90 'F'9 RWST Temperature 'F Service Water Temperature 63 'F Outside Temperature 39 'F SPRAY SYSTEM

.Number of Pumps Operating Runout Flow Rate <<

1450 gpm Actuation Time 26 .secs SAFEGUARDS FAN COOLERS Number of Fan Coolers Operating 3 Minimum Post Accident Initiation Time for Fan Coolers 26 secs

'l 4(

1

TABLE 3 'Continued)

LARGE BREAK COiHTAXaiLLENT DATA (DRY CONTAXat~fE'LLlT)

STRUCTURAL ERAT SXNKS Thickness (Xn Area (Ft )

Steel 0.03 31s400 Steel 0. 063 107,158 Steel 0.1 56,371 Steel 0.2 57,185 Steel 0. 24 9,931 Steel 0. 2898 Concrete 24. 0 136,000

, Steel 0.4896 23,677 Steel 0. 6396 6,537 Steel 0.8904 4,915 Steel 1.256 27,802 Steel 1.56 5,307 Steel 2.0 668 Steel 2.75 1268. 7 Steel 5.5 1277.4 Steel 9.0 260. 4 Stainless 0. 14 Concrete 24.0 14,392 Stainless 0.44 768 Stainless 2. 126 3,704 S" ain" ess 0. 007 102, 400 Concrete 24. 0 59)132

gl I

8'

'L ~

) ~

TABLE 4 REFLOOD MASS AND ENERGY RELEASES FOR LIMITING CASE DECLG (C =0.4)'AND 10% STEAM GENERATOR TUBE PLUGGING TIME TOTAL MASS FLOMRATE TOTAL FLORATE (SEC) (LBM/SEC) 10ENERGY BTU/SEC) 46.589 0.0 0.0 48.714 0. 0415 0.0005 54.286 35.50 '.4614 64.436 "'95.65 1. 189

77. 136 98. 17 1.. 219 92.136 103. 9 1. 280 107.936 220. 9 1. 603 124.236 263.2 1.678 159.236 274. 8 1.60/

197.536 281. 5 3.. 514

TABLE 5 BROKEN LOOP ACCUMtJLATOR FLOW TO CONTAINMENT FOR LIMITING CASE DECLG (C =0.4) lOX D

STEAM GENERATOR TtJBE PLUGGING TIME SEC) MASS FLOWRATE (LBM/SEC) 0.0 0.0

0. 02 2723.5

2. 00 2276.0 4.00 1994.9 6.00 1793.1 8.00 1645.5

>0.0 1526. 4 15.0 1302. 5 20.0 1137. 8 25.0 1034. 6

30. 0 954. 2 35.0 887. 0

38. 9 842. 6

'I l0,833-I 6 8 IO 2 II 6 8 IO 2 6 8 I08 TIME (SECONDS)

I

(

Figure 1 Fluid Quality - DECLG (GD = OA)

IO, 833-2

.30 20 c4 10 0

6.O Ft.

- IO

-20

-30 IO 2 4 6 8 IO 2 0 6 8 IO 2 . 0 6 8 IO TIME (SECONDS)

Figure 2 Mass Velocity - DECLG (CD = 0.4)

'I l0,833-3 lp" 8

6 0

CU lp3 I 8 ca 6 2

LU lp2 8

6 CC 2

I- .

lp' 6.0 Ft.

6 lpp 0 lpp 200 300 TlHE (SECONDS)

Figure 3 Heat Transfer Coefficient - DECLG (CD = 0.4)

II v "r

~ ~ II

~ 4 V

'I C

I I

I I

J, I Il I

I II

l0, 833-'0 2500 2000 I500 IOOO CL 500 0

0 l0 20 30 TIME (SECOHDS)

Figure 4 Core Pressure - DECLG (Cp = 0.4)

~ /

iixl04 exio~

Txlo" 5XI04 g 3x IO" Ixlo~

-ixlo~

0 IO 20 30 .

TIME (SECONDS)

Figure 5 Break Flow Rate- DECLG (CD =0.4)

I ~

~

1 l

~ ~ ~

U

~ I0,833-6 75 50 25 0

-25

-50

-75 0 IO 20 30 TIME (SECOIIDS)

Figure 6 Core Pressure Drop - DECLG (CD = 0.4)

h M

~ ~ Il

' t ~

~

I ~

h ~

l0,833-7 2500 U

O 2000 6.0 Ft.'J 1500 I

OC LJJ D

UJ I 000 I

LLI JJj 500 0

0 IOO 200 300 TIME (SECOHDS)

Figure 7 Peak Clad Temperature - DECLG'(C = OA)

D

0 g

1 ~

I V

I "I

( ~ J

'I P

III

2000-I750 I500 w I 250 w IPPP 750 500 6.0 Ft.'50 0

0 IOO 200 300 TIME (SECONDS)

Figure 8 Fluid Temperature - DECLG (Cg = 0.4)

II LLL

l0000 I

7500 I.-

I I

5000 2500 lli ED

-2500

-5000

-7500

-l0000 0 IO 20 30 TIME (SECONDS)

Figure 9 Core Flow - Top and Bottom - DECLG (CD = 0.4)

5-

' ~ ~

~, ~

nl CI n

'4 IP

/

n

2.00 l.75 I. 50 g 0.75 0 '0

0. 25

0. 00 0 25 50 75 l00 I25 l50 l75 200 TIME (SECONDS)

Figure 10 Ref lood Transient- DECLG (CD = 0.4)

Core Inlet Velocity

N I r ~ ~~

~

P

'Ij ~

1 I

T F

I I

II e

e l J

~,

~ .-

l

20. 0 00MHCOMER LEVEL 17.5 l5.0

12. 5

10. 0 7.5 P

5.0 CORE LEVEL .

2.5 0.0 0 100 ~

125 150 175 200 TlME (SECONDS)

Figure U Ref lood Transient - DECLG (Cp = OA)

Downcorner and Core M/ater Levels

1 t'f S

lt

'0,833- l2

'000 5000 4000 3000 I-,

2000

'I 000 0

0 l0 20 30 T IME (SECONDS)

Figure 12 Accumulator Flow (8lowdown) --DECLG (CD = 0.4)

P f

C

~

8.0 6.0 I

%.0 I

a e

2.0 I

t 0 0

~

0 %0 80 , )20 leo 200 T I t tE (SECOHDS)

Figure l3, Pumped ECCS Flow (Ref lood) - DECLG (CD = 0.4)

P l P

L ~ .

~g 1

V l

c C't t r'

4 1

'1

\

I l ~ ~

1 c

e

'N 1

P l

30.

25 20 a= l5 I

l0 l

CP 0

0 40 80 l20 l60 200 240 280 320 360 400 TlME (SECONDS)

Ct V

00 Col CO Figure 14 -

Containment Pressure - DECLG (CD OA) I

II

~ a I

'4 ~ I

C

~ ~ ~

l.o 0.8 0.6 LU o 0.%

0.2 0.0 0 l0 20 30 TlWE (SECOHOS)

Figure l5 Core Power Transient I

- DECLG (CD = 0.4)

4

~ \~ f 0 T r

I0,833- I6 55xl06 tl5x I 0 CD LLj CQ 35xl06 CCI 25xl06 l5x I 0 5xl06

-.5x I 0 6 0 IO 20 30 T IME (SECONDS)

'igure 16 Break Energy Released to Containment

~ I v ~ l~

k ~

~ I~

~ D L0,833- I7 IIOO U

O IOOO I

I Ll I

Ch 900 I

CKL I

800 LLI Ll U

Lll ED 700 CD 600 500

~

CQ Lal %00 Ch ED CD 300 LIJ 200 l

ID CD IOO 0

0 l00 200 300 TIME (SECONDS)

Figure 17; Containment Wall Condensing Heat Transfer Coefficient

C ~