ML20115H330
| ML20115H330 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 02/08/1996 |
| From: | Ezekoye L, Wendy Moore, Walker L WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| To: | |
| Shared Package | |
| ML20115H322 | List: |
| References | |
| V-EC-1606, V-EC-1606-R, V-EC-1606-R00, NUDOCS 9607230061 | |
| Download: ML20115H330 (12) | |
Text
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WESTINGHOUSE PROPRIETARY CLASS 2C PAGE 1 OF / 8-Westinghouse Calculation Note Cover Sheet CALC NO:
V-EC-1606 REV:
0 f
TITLE:
VERIFICATION OF PRESSURE LOCKING ANALYSIS PROGRAM t
PRESLOK PROJECT: WOG SHOP ORDER: 220 PURPOSE: (see page(s)) 5 RESULTS: (see page(s))
5, 6 iS THERE MICROFILM ASSOCIATED WITH THIS CALCULATION 7 YES
/ NO AUTHOR (S):
NAME (Print or Type)
SIGNATURE DATE WILLIAM E. MOORE
[,c/d ( M 2,/f/4Jg, l
VERIFIER (S):
NAME (Print or Type)
SIGNATURE DATE
- h. [f;j [
p t, p, /99[p L. IKE EZEKOYE p
-y y
Method of Verification Used: Indepent Review MANAGER NAME (Print or Type)
,[
SIGhURE DATE
\\h[ N 7/E%
L.1. WALVER v)
This document contams informaton propnetary to Wesungnouse Electnc Corporanon. Energy Systems Business Unit. and Nuclear Technokv;y Diesson; it is submit:sd in con 6dence and is to be used soiety for & purpose for wnsch it is fumished, then retumed upon rNmst. This document and such enformabon is not to be reproduced. transmstted. disciosed or used otherwise in whose or in part w uiout enor wntten authon:aton of Westnghouse Electne Corporanon Energy Systems Business Unit and Nucisar Tecnna,,y Divison.
3 Copyngnt 1996. Wasangnouse Eactne Corporacon All Asghts Reserved A WEE \\$6*ARE#0AMsC ALCCova FW1
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9607230061 960717 PDR ADOCK 05000266 P
5 4YlOL Proprietary Class 2C Page 1
Verification of Pressure Locking Analysis Program PRESLOK Project /S.O. No.: WOG-220 Calc No.: V-EC-1606 Group: AEE CALCULAT10N NOTE METHODOLOGY CHECKLIST CALC-NOTE NUMBER: V-EC-1606 REv.
O CHECKUST TO BE COMPLETED BY AUTHOR (S).
(CHECK APPROPRIATE RESPONSE) -
1.
Is the Subject and/or the Purpose of the Design Analysis Clearty Stated ?
Yesf_ No j
l 2.
' Are the Required inputs and Their Sources Provided ?
Yes / No N/A 1
3.
Are the Assumptions Clearly identified and Justified ?....
Yes / No N/A l
4.
Are the Methods and Units Clearly identified ?...
....... Yes / No N/A i
5.
Have the Limits of Applicability Been identified ?.......... Yes / No N/A l
6.
Are the Results of Literature Searches, if Conducted, i
or Other Background Data Provided ?...
... Yes No N/A /
7.
Are all the Pages Sequentially Numbered and Identified by l
ihe Calculation Note Number ?.
Yes /- No i
8.
is the Project or Shop Order Clearty identified ?
Yes / No 9.
Has the Required Computer Calculation Information l
Been Provided ?
Yes No N/A /
l l
ith Were the Computer Codes Used Under Configuration Control ?.
Yes No N/A /
11.
Were the Computer Code (s) Used Applicable for Modeling the Physical and/or Computational Problems identified ?
Yes No N/A /
i 12.
Are the Results and Conclusions Clearty Stated ?..
Yes / No l
13.
Are Open items Property identified ?
, Yes_ No N/A /
)
14 Were Approved Design Control Practices Folicwed Without Exception ?
. Yes / No NOTE:
- If no to any of the above, page number containing justification:
I s3/c l CALC-NOTE NUMBER:
V-EC-1606 REV:
O PAGE: 3 PROPRIETARY CLASS INFORMATION SHEET i
- 1. The information in this cale note has been determined by the author (s) or appropriate Westinghouse personnel to be; Proprietary Class 1 Proprietary Class 2 (no or some Class 2C content)
/
Proprietary Class 2C Proprietary - Must be Classified Prior to Release 1
- 2. If Class 2. describe tne specific Class 2 content or method for deignating Class 2 content.
i
- 3. If Class 2. justify or provide reference for Class 2 basis.
I i
4 If Class 2 or 2C, identify customer for which the cale note was specifically generated. (This information will provide some basis for a Class 2C release using form 36EZ).
l CALCULATION WAS GENERATED FOR THE WESTINGHOUSE OWNER'S GROUP l
S. If Class 2 or Class 2C, identify plants or types of plants for which tne calc note should be consicered generically applicable (i.e., if not plant-specific). If the calc note is plant-specific, list " plant-specific". (This information will provide some basis for a Class 2C release using Form 36EZ).
I GENERALLY APPLICABLE TO FLEXIBLE WEDGE TYPE GATE VALVES l
Note that prict to release, this calc note must be accompanied by a cover sheet which includes the appropriate proprietary information markings and disclosure clauses as specified in WCAP-7211, Rev. 3. Note also that prior to release. all pages of this cale note must be marked wrth the appropriate propnetary class cesignation, n eswauomuscu.ccova rm
5 L, //ct-Proprietary Class 2C Page Y Verification of Pressure Locking Analysis Program PRESLOK Project /S.O. No.: WOG-220 Calc. No.: V-EC-1606 Group: AEE TABLE OF CONTENTS SECTION PAGE CALCULATION NOTE COVER SHEET 1
CALCULATION NOTE METHODOLOGY CHECKLIST 2
PROPRIETARY CLASS INFORMATION SHEET 3
TABLE OF CONTENTS 4
PURPOSE 5
CONCLUSIONS 5
METHODOLOGY 5
REFERENCES 5
COMPARISON OF RESULTS 6
SAMPLE PRCBLEM - HAND CALCULATION 7-12 APDENDIX A - USER'S GUIDE FOR PRESLOK 1 - 32 APPENDIX B - PRESLOK VERSION 1 SAMPLE PROBLEM OUTPUT 1-6 i
APPENDIX C - PRESLOK VERSION 2 SAMPLE PROBLEM OUTPUT 1-6 s
i I
m _-.._...
.5 ~7 /G' Proprietary Class 2C Page [
Verification of Pressure Locking Analysis Program PRESLOK Project /S.O. No.: WOG-220 Calc. No.: V-EC-1606 Group: AEE i
PURPOSE The purpose of this calculation is to provide verification that the MATHCAD program PRESLOK, which was developed for the Westinghouse Owner's Group to perform pressure locking analysis c-f flexible wedge type gate valves using the i
Commonwealth Edison method, accurately performs the required calculations.
This verification will apply to Version 1 of the program (preslok1.mcd), which accepts closing valve factor as an input, and also to Version 2 (presick2.med),
which accepts the coefficient of friction between the disk and the seat as an input.
CONCLUSIONS The conclusion of this report is that both Version 1 and Version 2 of the program PRESLOK, as described in Rev.1 to the User's Manual, correctly perform the calculations necessary to analyze flexible wedge type gate valves for pressure locking using the Commonwealth Edison methodology.
METHODOLOGY The PRESLOK User's Manualis attached to this calculation as Appendix A and is part of this calculation. The remainder of the calculation consists of a problem j
which is worked out by hand and compared to the PRESLOK Version 1 calculation results to verify that the MATHCAD instructions accurately reflect the analysis methods being used. We have also computed the answers for this problem using the PRESLOK Version 2 program by entering the co-efficient of friction corresponding to the valve factor used in the test problem. The i
PRESLOK Version 1 and PRESLOK Version 2 outputs for the test problem are attached to this calculation as Appendices B and C.
REFERENCES 1.
Letter MSE-AEE-11448, January 19,1996. This letter transmits the minutes crf the WOG Subgroup on Pressure Locking and Thermal Binding meeting on 1/4-1/5/96.
2.
USER'S GUIDE FOR PRESLOK, A GATE VALVE PRESSURE LOCKING ANALYSIS PROGRAM USING THE COMMONWEALTH EDISON MODEL, REVISION 1, February 7,1996. This revision of the ma~ml
3 b /to g Proprietary Class 2C Page b Verification of Pressure Locking Analysis Program PRESLOK Project /S.O. No.. 'VOG-220 Calc. No.: V-EC-1606 Group: AEE incorporates changes requested at the WOG Subgroup on Pressure Locking and Thermal Binding meeting on 1/4-1/5/96, as well as changes i
identified during the verification process. This document is Appendix A of this calculation.
3.
Roark, Raymond J., and Young, Warren C., Formulas for Stress and Strain,5th Edition, McGraw-Hill Book Company,1975.
l COMPARISON OF RESULTS A line by line comparison of the results was performed, looking at as many significant figures in the MATHCAD output as were calculated in the hand cctculations. The only result where the difference between the hand calculation and the MATHCAD calculations exceed one digit in the sixth significant figure is in the seat load. The difference in this result is i
t Hand Calculation MATHCAD Calculation F3 = 82848.644 lb.
Fg = 82848.814 lb.
82,848.8 8
4 44
% difference =
x100 = 0.0002 %
g g g,644 i
This amount of error is attributable to round off error, since the computer carries more significant digits than the hand calculation. The programs PRESLOK Version 1 and PRESLOK Version 2 are considered verified.
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