ML17346B169

Forwards NTH-G-6, Retran Code Transient Analysis Model Qualification, to Qualify Retran Models for non-LOCA Sys Safety Analysis.Review & Approval of Rept Requested by 860801.Fee Paid

ML17346B169
Person / Time
Site:	Saint Lucie, Turkey Point, 05000000
Issue date:	01/07/1986
From:	Woody C FLORIDA POWER & LIGHT CO.
To:	Berkow H Office of Nuclear Reactor Regulation
Shared Package
ML17346B170	List: ML17346B169 ML17346B171
References
L-86-4, NUDOCS 8601140324
Download: ML17346B169 (7)

Text

REGULATOR)~FORMATION DISTR IHUTIQN 8~EM (R IDS >

J ACCESSION NBR: 8601 140324 DQC. DATE: 86/01 /07 NOTAR I ZEO: NO DOCKET ¹ FAC IL: 50-000 Generic Dac ket O5OOOOOO 50-250 Turkey Paint Planti Unit 3i Florida Pouer and Light C 05000250 50-251 Turkey Point Pianti Unit 4I Florida Power and Light C 05000251 50-335 St. Lucie Planti Unit ii Florida Pouer 8c Light Co. 05000335 50-389 St. Lucie Planti Unit 2i Flor ida Pouer Cc Light Co. 05000389 AUTH. NAME AUTHOR AF'FILIATION NOODYI C. Q. Florida Pauer k Light Co.

REC IP. NAME REC IP IEN I AFFILIATION BERKCNi H. N. Special 5 Standardization Prospect Directorate SUB JFCT: Forwards NTH G-6 "RE1RAN Code Transient Analysis Model Gualif icationi " to qualify RETRAhI madels for non-LOCA sos safety analysis. Review approval of rept requested bg P;.

860801. Fe e pa id <

CODE A0020 COPIE RE EIVED: LTR /i'ISTRIBUTION Q ENCL ~~ SIZE: ~0 ~+'O TITLE: OR Submittal: Gener al Distribution NOTES 05000250 OL: 07/19/72 05000251 OL: 04/14/73

<a 05000335 OL: 02/01/76 L~ 05000389 OL: 04/06/83 ~C~

RECIPIENT CQP IES REC IP IEN I COPIES ID CODE/h!AME LTTR ENCL ID CODE/NAME LTTR ENCL PNR-A ADTS 1 P NR-B ADTS 1 0 PNR-A PD2 PD 01 5 y' PNR-H PD8 PD Ol 5 PNR-A EB PNR-H EB 1+

PNR-A EICSH McDONALDi 9 1, If ig FO SELLS' PV R ~Q-QOQ, 1

PS ~4 G-QS 1 1$ PNR-A RSB PNR-B RSB 1 1+

INTER h! AL: ACRS 09 AOM/LFMB 1 ELD/HDS4 ELD/HDS2 1 NRR/DHFT/TSCB RRAB 1 NRR/GRAS 04 1 1+

RGN2 EXTERNAL: 24X 1 1$ EGS(G BRUSKEi 8 1 1+

LPDR 03 05 2 2g NRC PDR 02 1 1+

NSIC 1 TOTAL NUMBER OF COPIES REQUIRED: LTTR 41" ENCL

P

.b'3 L j )rv v

J !0 ~h.) I l

I 1 I;,ll

) V) 1 QI)h l

')l Q$ 39'1 -. W .v'3 '

b I '"I 0 L: ~

ih

~b J' I". L 1"=

P j. b 14 ') ," re3 Q) ~ g' r ygv ' I" 1 hl I t'1 P s~ .'Jjl 1'"; ' I ; '. II )

b If P Jl, ', <<hj,,)

)"I'"

J Q.,Il'"'-)b ~

,w, )),b r'$ 2 1

v 0 fE I P I '.1<

hh.1 IP ".;,", '.;i')3.'q

') 'bhhrtbh ~

3 Jb.

bc , <",t")<, IVIQQ Q')

. Ibhb"'V h)

)",). A Vih LQ vi~~

"--P"v)"

'b-I "5i )"b-He)"l

('A'> 0 a ~"

4) rbj g I)b bs',)

~

P~ HI)

<((

j r ~ " -"'I" tIQ'vv 9 R.. ':"Z

', AH JX':")'

~

hI $

P' rPIU 3 yy

~

BOX 14000, JUNO BEACH, F L 3340B Jr~:ii FLORIDA POWER 8 LIGHT COMPANY JAN Q 7 1888 L-86-4 Office of Nuclear Reactor Regulation Attention: Mr. Herbert N. Berkow, Chief Standardization and Special Project Directorate U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Dear Mr. Berkow:

Re: To ical Re ort - RETRAN Code Transient Anal sis Model Qualification We are transmitting herewith twenty-three (23) copies of the Topical Report, "RETRAN Code Transient Analysis Model Qualification" for your review and approval.

The attached Topical Report is submitted for,thepurpose of qualifying FPL's RETRAN models fo'r non-LOCA system"".safety analyses in support of future licensing 's'ubmittals for,"Turk'ey"Point Units 3 'and"4'a'n'd'St. Lucie Units I and 2, Docket Numbers'0-250, 50-25 I, "50-335," and 50-389, respectively. A Topical Report on FPL's core thermal-hydraulic codes, models and methods will be submitted at a later date.

, C FPL desires to have the capability of supporting licensing amendments during I 986 and l987 which have the objective of increasing the safety, availability and operating flexibility of the Turkey Point and St. Lucie nuclear plants. It is our objective to have the flexibility to support any non-LOCA safety analyses in-house, utilizing computer models and methods developed at FPL since the mid-l970's. Currently, FPL's system simulation is performed with the RETRAN Code developed by the Electric Power Research Institute and approved for non-LOCA analysis by the NRC. In parallel with the qualification of FPLs thermal-hydraulics methods, an effort is ongoing to qualify FPL's core physics methods for use in safety-related licensing applications.

A topical report on P WR lattice physics methods was submitted on May I 0, I 984 (FPL Letter L-84-I25), and additional reports on FPL's physics models and methods will be submitted in early l986. It is the aim of this effort to eventually qualify FPL's methods for performing most non-LOCA safety-related plant analysis, including reload analysis, for its nuclear plants.

sbaii40324 86DMi PDR ADOCK 050 250 P

TCG3/0 I 5/ I PEOPLE... SERVING PEOPLE

a

'4 II I

II 4I 4 f II t/

lt

Page 2 Office of Nuclear Reactor Regulation Mr. Herbert N. Berkow Review and approval of the RETRAN Code Transient Analysis Model Qualification Topical Report, and the PWR Lattice Physics Methods Topical Report submitted May IO, l 984, are requested by August I, I 986.

In accordance with IO CFR l70, an application fee of $ I50.00 is enclosed.

Very truly yours, C. O. Wood Group Vic resident Nuclear Energy COW/TCG/gp Enclosure cc: Dr. J. Nelson Grace, NRC IE Region II (w/o encl.)

Harold F. Reis, Esquire (w/o encl.)

TCG3/0 I 5/2

REFERENCES

1. RETRAN-02 A Program for Transient Thermal-Hydraulic Analysis of Complex Fluid Flow Systems, EPRI, NP-1850, May 1981.

2. Letter C. O. Thomas (NRC) to T. W. Schnatz (Middle South Services), September 4, 1984.

3. Topical Report PWR Lattice Physics Methods at Florida Power & Light Company, June 1983. Letter from J. W. Williams (FPL) to S. A. Varga (NRC), L-84-125, May 10, 1984.

l.

0 I