ML20056H067
| ML20056H067 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 09/03/1993 |
| From: | Fenech R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML19310D676 | List: |
| References | |
| NUDOCS 9309080173 | |
| Download: ML20056H067 (10) | |
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Tennessee Vahey Authorgy. Post ON ce Box 2Dlo. Goddy-Daisy, Tennessee 37379ATJ Robert A. Fenech Vice Presdent. Segacyah Nuclear Plant September 3, 1993 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 l
Gentlemen:
In the Matter of
)
Docket Nos. 50-327 Tennessee Valley Authority
)
50-328 SEQUOYAH NUCLEAR PLANT (SQN) - SUPPLEMENTAL INFORMATION FOR TECHNICAL SPECIFICATION (TS) CHANGES 92-07 AND 92-13
References:
1.
TVA letter to NRC dated November 16, 1992,. "Sequoyt.h Nuclear Plant (SQN) - Technical Specification (TS)
Change 92-13. " Reactor Coolant System (RCS) Minimun; Flow Rate Requirement Reduction" i
2.
TVA letter to NRC dated August 21, 1992, "Sequoyah j
Nuclear Plant (SQN) - Technical Specification (TS)
Change 92-07, " Reactor Coolant System (RCS) Loss of Flow Reactor Trip Setpoint Allowable Value Increase" j
TVA and NRC held telephone discussions regarding the two referenced TS changes on January 28 and February 18, 1993.
These discussions resulted in NRC requesting additional infonnation to support the review of these l
TS change requests. The requested information involved the details for l
instrumentation uncertainties that were considered for the overall 2.4 percent RCS flow measurement uncertainty and the specific flow values used to derive the flow ratios documented for the RCS flow measuren:ent test at Prairie Island Nuclear Plant.
l l contains one copy of "RCS Flow Calorimetric Instrumentation Uncertainty Tables for Normalization to a Single RCS Flow Calorimetric" (proprietary). This enclosure provides information proprietary to Westinghouse Electric Corporation; it is supported by an affidavit signed l
by Westingho.tse, the owner of the information. The affidavit sets forth M
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U.S. Nuclear Regulatory Commission Page 2 September 3, 1993 the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in Section 2.790, paragraph (b)(4) of the Commission's regulations.
Accordingly, it is respectfully requested that the information that is proprietary to Westinghouse be withheld from public disclosure in accordance with 10 CFR Section 2.790 of the Commission's regulations. contains one copy of "RCS Flow Calorimetric Instrumentation Uncertainty Tables for Normalization to a Single RCS Flow Calorimetric" (nonproprietary). contains Westinghouse authorization letter CAW-93-464, accompanying Affidavit, Proprietary Information Notice, and Copyright Notice. Correspondence with respect to the copyright or proprietary aspects of the items listed above or the supporting Westinghouse affidavit should reference CAW-93-464 and should be addressed to N. J. Liparulo, Manager of Nuclear Safety and Regulatory Activities, Westinghouse Electric Corporation, P.O. Box 355, Pittsburgh, Pennsylvania 15230-0355. contains the testing details of the flow ratios from Prairie Island. This information is nonproprietary.
Please direct questions concerning this issue to K. C. Weller at (615) 843-7527.
Sincerely, Robert A. Fenech Enclosures cc: See page 3 l
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l U.S. Nucleat Regulatory Commission Page 3 i
September 3, 1993 i
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cc (Enclosures):
l Mr. D. E. LaBarge, Project Manager U.S. Nuclear Regulatory Commission j
One White Flint, North
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11555 Rockville Pike g
Rockville, Maryland 20852-2739 i
i NRC Resident Inspector
.I Sequoyah Nuclear Plant 2600 Igou Ferry Road i
Soddy-Daisy, Tennessee 37379-3624 l
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Regional Administrator l
U.S. Nuclear Regulatory Commission j
Region II j
101 Marietta Street, NW, Suite 2900 d
Atlanta, GeorE a 30323-2711 i
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l ENCLOSURE 2 i
RCS FLOW CALORIMETRIC INSTRUMENTATION UNCERTAINTY TABLES i
FOR NORMALIZATION TO A SINGLE RCS FLOW CALORIMETRIC l
(NON-PROPRIETARY) 9 I
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i WESTINGHOUSE PROPRIETARY CLASS 2 j
I RCS Flow Calorimetric Instrumentation Uncertainty Tables
'For Normalization'To A Single RCS Flow Calorimetric l
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FLOW CALORIMETRIC INSTRUMENTATION UNCERTAINTIES l
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(% SPAN)
FW TEMP FW PRES FW DP STM PRESS TH TC PRZ PRESS }
SCA =
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SMTE=
SPE =
STE =
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RMTE=
RTE =
RD
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CSA =
- OF INST USED 1
3 2-
'4' DEG F PSIA
% DP PSIA DEG-F.
DEG F' PSIA-INST SPAN = 500.
1500.
120.
.1300.
100.
100.
800.
INST UNC.
(RANDOM) =
INST UNC.
(BIAS)
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NOMINAL
= 435.
946.
846.
609.7 546.7 2250.
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i WESTINGHOUSE PROPRIETARY CLASS 3
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RCS Flow Calorimetric Instrumentation Uncertainty Tables
'For Normalization To A Single RCS Flow CalLrimetric
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FLOW CALORIMETRIC SENSITIVITIES FEEDWATER FLOW FA
%/DEGF i
TEMPERATURE
=
MATERIAL
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DENSITY
%/DEGF TEMPERATURE
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%/ PSI PRESSURE
=
%/%DP DELTA P
=
FEEDWATER ENTHALPY
%/DEGF TEMPERATURE
=
r
%/ PSI
{
PRESSURE
=
hS 1198.1 BTU /LBM
=
hF 413.5 BTU /LBM
=
Dh(SG) 784.6 BTU /LBM
=
r STEAM ENTHALPY
%/ PSI PRESSURE
=
MOISTURE
%/0.25% MOISTURE
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HOT LEG ENTRALPY
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TEMPERATURE
%/DEGF
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%/ PSI PRESSURE
=
hH 627.3 BTU /LBM
=
hC 543.1 BTU /LBM
=
84.3 BTU /LBM l
Dh(VESS)
=
0.148E+01 BTU /LBM-DEGF Cp(TH)
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COLD LEG ENTHALPY r
%/DEGF l
TEMPERATURE
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%/ PSI
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Cp(TC) 0.124E+01 BTU /LBM-DEGF
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t COLD LEG SPECIFIC VOLUME t
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TEMPERATURE
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PRESSURE
%/ PSI
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WESTINGHOUSE PROPRIETARY CLASS 3 RCS Flow Calorimetric Instrumentation Uncertainty Tables i
For Normalization To A Single RCS Flow Calorimetric I
CALORIMETRIC RCS FLOW MEASUREMENT UNCERTAINTIES COMPONENT INSTRUMENT ERROR FLOW UNCERTAINTY FEEDWATER FLOW VENTURI
%K
% FLOW THERMAL EXPANSION COEFFICIENT TEMPERATURE DEGF i
MATERIAL DENSITY TEMPERATURE DEGF PRESSURE PSI DELTA P
% DP FEEDWATER ENTHALPY TEMPERATURE DEGF PRESSURE PSI STEAM ENTHALPY PRESSURE PSI MOISTURE
% MOISTURE NET PUMP HEAT ADDITION HOT LEG ENTHALPY TEMPERATURE DEGF STREAMING, RANDOM DEGF STREAMING, SYSTEMATIC DEGF i
PRESSURE PSI COLD LEG ENTHALPY TEMPERATURE DEGF PRESSURE PSI COLD LEG SPECIFIC VOLUME TEMPERATURE DEGF PRESSURE PSI BIAS VALUES FEEDWATER PRESSURE DENSITY ENTHALPY STEAM PRESSURE ENTHALPY PRESSURIZER PRESSURE ENTHALPY - HOT LEG ENTHALPY - COLD LEG SPECIFIC VOLUME - COLD LEG FLOW BIAS TOTAL VALUE
- ** +,++ INDICATE SETS OF DEPENDENT PARAMETERS 1 LOOP UNC
% FLOW N LOOP UNC
% FLOW CLD372;LVT/053593 l
WESTINGHOUSE PROPRIETARY CLASS 3 RCS Flow Calorimetric Instrumentation Uncertainty Tables For Normalization To A Single RCS Flow Calorimetric INDICATED RCS FLOW INPUT VALUES ALL VALUES IN % d/p SPAN PEA
=
SCA
=
SMTE =
=
=
=
BIAS =
=
RMTE =
RTE
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RD
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ROUT =
- OF LOOPS =
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% FLOW FLOW CAL. BIAS
% FLOW
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PRESS. CONTROL PSI
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TEMP. CONTROL DEG. F
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FLOW SPAN 110.0 % FLOW
=
l ACCURACY OF LNDICATED RCS FLOW FROM PROCESS COMPUTER PMA ALL VALUES IN % FLOW
=
=
SCA
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SMTE =
=
=
=
BIAS =
=
RMTE =
RTE
=
RD
=
A/D
=
ROUT =
1 LOOP ELBOW TAP
% FLOW
=
N LOOP ELBOW TAP
% FLOW-
=
%. FLOW
=
CLD372iVT/050593
WESTINGHOUSE PROPRIETARY CLASS 3 RC.S Flow Calorimetric Instrumentation Uncertainty Tables For Normalization To A Single RCS Flow Calorimetric j
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RCS LOW FLOW TRIP INPUT VALUES
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1 ALL VALUES IN % d/p SPAN PEA
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SCA
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BIAS =
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RD
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FLOW CALORIMETRIC =
% FLOW
%' FLOW FLOW CAL. BIAS
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PRESS. CONTROL PSI i
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DEG. F TEMP. CONTROL
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FLOW SPAN 110.O % FLOW
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PMA ALL VALUES IN % FLOW SPAN
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=
SCA
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SMTE =
=
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BIAS =
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RMTE =
RTE
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RD
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FLOW SPAN = 110.0 86.7 SAL
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ALLV =
89.4 MAXV =
90.0 90.0-NOM
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TA
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CSA =
MAR =
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ENCLOSURE 3 WESTINGHOUSE AUTHORIZATION LETTER CAW-93-464, AFFIDAVIT, PROPRIETARY INFORMATION NOTICE, AND COPYRIGHT NOTICE i
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