ML20153F760
| ML20153F760 | |
| Person / Time | |
|---|---|
| Site: | 05200003 |
| Issue date: | 03/31/1998 |
| From: | WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| To: | |
| Shared Package | |
| ML20153F751 | List: |
| References | |
| DCP-NRC1379, WCAP-14845-ERR, WCAP-14845-ERR-R03, WCAP-14845-ERR-R3, NUDOCS 9809290238 | |
| Download: ML20153F760 (6) | |
Text
{{#Wiki_filter:,.. ~ - - - DCP/NRCl379 ENCLOSUREI ERRATA FOR WCAP-14845, Rev 3. " Scaling Analysis for AP600 Containment Pressure During Design Basis Accidents" ~ 9809290238 980922 c,5g d d PDR ADOCK 05200003 A PDR
Table 4-1 Containment Time Constants - DECLG LOCA Post-bicwdown Containment Time Constant Symbol and Definition Numerical values at Hierarchical Level 1200 seconds, (sec.) Containment system tsystem = Vcontainment/Go 5045 CS conduction = Psh p /h 256 T Large scale flow tplume entrainment = Vcontainment /Qe. plume 337 structures twan entramment = Veontainment/Qe.wau 418 Wall boundary layer tresidence time = N N'b SL BL. control volume "N t= 0.5 to 1.2 g 3 g (ATb diffusion layer penetration = 0m /DV 0.5 T Where the particular values used in the above table, obtained from Reference 37 except where noted in the text, are: Vcontamment total containment free volume,1.7x10 ft3 (changes less than 10% during 6 = the transient). Qo 3 source (break) flow of steam,337 ft /sec. = density of containment shell material,490.7 lbm/ft. 3 psh = Cp containment shell material specific heat capacity,0.107 BTU /lbm-F. = S containment shell thickness,0.1354 ft. (1.625 inches). = x h equivalent total heat transfer coefficient based on the temperature = difference from containment gas to shell surface.100 BTU /hr ft.p, 2 k containment shell thermal conductivity,23.6 BTU /hr-ft-F. = Q,,pium, volumetric entrainment rate for gas into the rising source plume, = 3 5050 ft /sec. Q,,,,ii volumetric entramment rate for gas into the falling wall boundary layer, = 3 4065 ft /sec. Qgt volumetric flow rate out of the bottom of the wall boundary layer, (Qe wan - = I Qeondensed ), where Qcondensed = 0 at quasi-steady conditions,3728 ft /sec. 0 V 3 et volume occupied by the wall boundary layer,65,500 ft. = kinematic viscosity of the boundary layer mixture, ranged from 2.3x10-4 v = 2 (steam) to 2.4x10-4 (air) ft j3,c, H height of the wall boundary layer,121 ft. = Construtve Equatons for Heat. Mass, and Radiacon Transfer Revtston 3 o uow.b wprmm98 March 1998
l ^ ^^ ^ T** P ,in3, P,, = P,,,,i - P Pg=T g g l irut abs (62) 6.3.1 Rate of Pressure Change (RPC) Equation i l l An RPC equation can be written by combining the equation for the rate of change of internal l energy, Equation (46) with conservation of energy, Equation (55) and conservation of gas mass, Equation 48: P,,m ' c Bh dP C c p real gas: p +pp, -1 7 = mp,g (hprk - h,em) + + m, V p p T c P
- E 5 (h,,,,, - h,,,) +f ** + h,jA (T.j - T) stm,i u
q l C dP C, P,, ' ,c p v p ideal gas: V 7 = mprk (hprk - hstm)*T
- mg c P
- E 5 (hstm.i ~ hstm) *
- h.j ^)(T.i-T) stm.)
q u ) psim, (63) The ideal gas form results from the real gas form with Z = 1 and Bh/BP = 0. Following the work of Wulff (Reference 12, Section 4.1), the symbol X is used to represent compliance, the coefficient that multiplies the right hand term VdP/dt. The symbol A = (c /ZR)P,m/p,en represents the mechanical response function, the pressure response to mass p 3 injection. It can be shown that (c /ZR)P,,m/pstm = p Bh/Bp i, the mechanical response 7 p function defined by Wulff (keference 12, Section 4.1). With these substitutions: dP Pstm P 7 = m p,g(hp,g-h,,,) + Asp rk * ' XV l i tm f l l
- bEstm,l(hstm.j-h,,) + A{ 6,,,, + { h, A,(T.iu - T) 3 a,
1 1 1 (64) 1 Contamment Cas Analysa and Equations for Scahng Revision 3 l e440ssw-b wptib 03119s March 1998
==menersammm 8. i sinks are always small. The pi groups clearly show the '2nportance of mass transfer as the process that dominates the rate of pressure change after blowdown. Volumetric compliance, E,1, is always a significant factor that mitigates the rate of pressure p rise. Table S.5 Containment and Heat Sink Pressure Scaling Pi Group Values ** Peak Pi Group Blowdown Refill Pressure Long Term MSI.B Contain-n,, 0.74 6 0.7W 0:45 0.7H 04 4 ment no e brk.wm e 1.00 C.00*
- 1. W 1.00 1.00 0.0 0 l
0.00 0.03 l 0.02 0.03 no c.brk eneh Drops n 0.05 -0.04 0.01 0.00 o mee.d Pool n,,,,, 0.04 0.00 0.03 0.07 Steel n,..,, -0.01 0.2% f -0 M -0.00 -0.10 n, m,,.,, 0.05 -1.41 -0.69 0.02 4.44 Concrete n,,, 0.00 l -0.01 0.00 -0.01 l -0.03 n, m,,,, -0.01 l -0.CS -0.02 -0.09 -0.12 Jacketed n,.,,, 0.00 l -0.0k8 -0.03 -0.0% l l -0.02 'vnerete n,m,,,, -0.C2 -0.46 -0.23 -0.18 'l -0.0S Evapora-n,.q,, l l -0.07 l -0.08 l tmg Shell l -0.43 -0.90 l n, m,c,, Sub-l 0.00 0.01 l n,q.3, p cooled l l 4.01 l Shell n.mee,,, 0.% l p Dry n.a d, 0.00 -0. d -0.01 -0.01 l -0.07 o Shell o mee.ds 4.02 -0.61 -0.03 l -0.0S l -0.37 n
- Refill was scaled with the same pressure normalization used fc peak pressure.
- The pi groups n y,
,g, n,q,g, n,q. n. ens.d K.mm.p "p.es.si p p p p p K en ce " and n.enth.d, have no values greater than 0.005, so are n,ot listed in this table.p.enmx, K.enths A.enth.sv A p p p l l l l l Evaluat2on of Contatnment and Heat Sink P! Groups Revtston 3 o 4088-.6 wptib-c31398 March 199B
c, 14 REFERENCES 1. DELETED 2. "AP600 Standard Safety Analysis Report," Westinghouse Electric Corporation. 3. M. J. Loftus, D. R. Spencer, J. Woodcock, " Accident Specification and Phenomena Evaluation for AP600 Passive Containment Cooling System," WCAP-14812, Rev. . 1007. Westinghoase Electric Corporation. 2. P' ' k 4. J. Woodcock, et al., "_WGOTHIC Code Description and Validation," WCAP-14382, May 1995, Westinghouse Electric Corporation. 5. "WGOTHIC Application to AP600," WCAP-14407, Rev/,,_.y 10^7, Westinghouse Electric Corporation. 6. Letter, B. A. McIntyre (Westinghouse) to T. R. Quay (US NRC), " GOTHIC Version 4.0 Documentation," DCP/NRC0410, September 21,1995. 7. Letter, B. A. McIntyre (Westinghouse) to T. R. Quay (US NRC), " Updated GOTHIC Documentation," DCP/NRC0419, October 12,1995. 8. Letter, B. A. McIntyre (Westinghouse) to T. R. Quay (US NRC), "AP600 WGOTHIC Comparison to GOTHIC," DCP/NRC0429, November 13,1995, 9. R. P. Ofstun, " Experimental Basis for the AP600 Containment Vessel Heat and Mass Transfer Correlations," WCAP-14326, Rev, M ,1^^7, Westinghouse Electric Corporation. 3 Ap,.g l 10. F. E. Peters, " Final Data Report for PCS Large-Scale Tests, Phase 2 and Phase 3," WCAP-14135 Rev.1, April 1997, Westinghouse Electric Corporation. 11. NUREG/CR 5809 EGG-2659, "An Integrated Structure and Scaling Methodology for Severe Accident Technical Issue Resolution," INEL, EG&G Idaho, Inc. 12. W. Wulff, " Scaling of Thermohydraulic Systems," BNL-62325, May 1995, Brookhaven National Laboratory. 13. Letter, N. J. Liparulo (Westinghouse) to R. W. Borchardt (US NRC), "AP600 Passive Containment Cooling System Prelimmary Scaling Report," NTD-NRC-94-4246, July 28,1994. (Superseded by WCAP-14845). l References l Revtston 3 oaow-3 wpi twmos March 1993
14-3 ' 27. P. F. P4 terson, " Scaling and Analysis of Mixmg in Large Stratified Volumes," International Journal of Heat and Mass Transfer, Vol. 37, Supplement 1, pp 97-106,1994. 28. P. F. Peterson, V. E. Schrock, and R. Grief, " Scaling for Integral Simulation of Mixing in Large, Stratified Volumes," Sixth International Topical Meeting on Nuclear Thermal Hydraulics, October S-8,1993, Grenoble, France. 29. W. D. Baines and J. S. Turner, " Turbulent Buoyant Convection from a Source in a Confined Region," Journal of Fluid Meche ts, Vol. 37, Part 1, pp 51-58, (1969). 30. W. Wulff, " Integral Methods for Simulating Transient Conduction in Nuclear Reactor Components," Nuclear Engineering and Design 151 (1994) 113-129. 31. W. A. Stewart and A. T. Pieczynski, Tests of Air Flow Path for Cooling the AP600 Reactor Containment," WCAP-13328,1992, Westinghouse Electric Company. 32. F. P. Incropera and D. P. DeWitt, Fundamentals of Heat and Mass Transfer, Second Edition, John Wiley & Sons. 33. K. R. Chun and R. A. Seban, " Heat Transfer to Evaporating Liquid Films," Journal of Heat Transfer, November 1971. 34. WCAP-13307, " Condensation in the Presence of a Noncondensable Gas-Experimental Investigation," Westinghouse Electric Corporation. 35. S. S. Kutateladze, I. I. Gogonin, N.1. Grigoteva, A. R. Dorokhov, " Determination of Heat Transfer Coefficient with Film Condensation of Stationary Vapor on a Vertical Surface," Thermal Engineering, 27 (4), 1980. 36. A. Bejan, Convection Heat Transfer. John Wiley and Sons,1984, pp 159-164. 37. "WGOTHIC Ap li to AP600," WCAP-14407, Rev. Appendix 9.D (To & A !=M L A r;l 14'# 3 38. Not Used. 39. G. Yadigaroglu, Derivation of General Scaling Criteria for BWR Containment Tests, Intemational Conference on Nuclear Engineering, Vol. 2. ASME 1996. H. Fossett, Some Observations on the Time Factor inp% Processes, Fluid 40. Mechanics of Mixmg, ASME,1973. MWg References Revtston 3 o woh4wpelb.c31398 March 1998
.- -... -..~_. -. . -.. - - -. _ ~.. -... r 4 g i k Westinghouse Energy Systems km 355 Electric Corporation Pesburen Pennsyhma 15230 0355 DCP/NRCl415 NSD4tRC-98-5759 Docket No.: 52 003 -{ t At. gist 17,19f8 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 2055 ATTENTION: T. R. Quay
SUBJECT:
RESPONSE TO NRC LETTERS CONCERNING REQUEST FOR WITHHOLDING INFORMATION l
Reference:
- 1. Letter, Donohew to Liparulo, " Request for withholding information from public disclosure for Westinghouse AP600 design letters of November 21,1994," dated August 1,1995.
- 2. Letter, McIntyre to Quay, " Status review of AP600 proprietary submittals," dated September 18,1995.
- 3. Letter, Jackson to Liparuto, " Request for withholding information from public disclosure for Westinghouse AP600 design letters of June 20,19954," dated November 16,1995.
4. Letter, McIntyre to Quay, "WCAP-14845, ' Scaling analysis for AP600 containment pressure during design basis accidents', Rev 3. errata," DCP/NRCl379, dated June 9,1998.
- 5. Letter, McIntyre to Quay, " Errata to WCAP-14407, Rev 3, 'WGOTHIC application to AP600'," DCP/NRCl395, dated July 14,1998.
- 6. Letter, McIntyre to Quay, " Response to NRC letter of August 23,1995, ' Request for withholding information in the design certification applicstion for the AP600',"
DCP/NRC1400, dated July 22,1998.
Dear Mr. Quay:
Reference 1 provided the NRC assessment of the Westinghouse claim that proprietary information was provided in a letter dated November 21,1994, that contained presentation materials from the November 15 through 17,1994, meeting where the AP600 passive containment cooling system was discussed. The NRC assessment was that some, but not all, of the material was sufficiently specific to J h%2e-r\\ Q tA-O$)t C vu P0/20*d 2002G1P10C18 01 2iLP PLC 2tp 377103ONNOW-Dad Nd O!:G1 86.81 900 l n, _.
~. ..-... - - -._ ---~ _ - DCP/NRCl415 NSD-NRC-98 3759 2-August 17,1998 ( the AP600 and the AP600 passive containment cooling testing to reveal distinguishing aspects of the passive containment cooling system and improve a competitors advantage. Our 1995 request, Reference 2, indicated that the material provided in the Westinghouse letter of November 21,1994, was presentation material that was intended for clarification only, not part of the formal review material and requested that the material be returned to Westinghouse. At the time this sgoject was being discussed with the NRC technical staff, the information was considered to be propricary by Westinghouse since it contained information that had commercial value to Westinghouse. If this presentation material was indeed used by the staffin development of the AP600 final safety evaluation report, then at this time, almost four years later, this information will no longer considered to be proprietary by Westinghouse. Reference 3 provided the NRC assessment of the Westinghouse claim that proprietary information was provided in a letter dated June 20,1995, which provided a copy of WCAP-14382, "WGOTHIC Code Description and Validation." He NRC assessment was that all of the material identified as j proprietary, with the exception of Figure 8-19, "Large scale PCS Instrumentation Elevations" would be j accepted as proprietary by the NRC. De Reference 3 pointed out that this same figure was nonproprietary on page 312 of WCAP-14382. Figure 819, therefore, will no longer considered to be i proprietary by Westinghouse. Westinghouse has been verbally informed by the NRC that the Westinghouse letter of June 9,1998, (reference 4), appeared to contain proprietary information that was no: clearly identified other than ( being marked " Westinghouse Proprietary Class 2" on the page and also that there was no affidavit included with the letter. The June 9,1998, letter contained errata for WCAP-14845, Revision 3 which is a proprietary report and for WCAP-14846, Revision 3, which is the nonproprietary version of WCAP-14845, In accordance with Westinghouse company policy, each page of a proprietary report has " Westinghouse Proprietary Class 2" on the page header. Specific information that is proprietary is then indicated with brackets. It is possible that there will be no information on a page that is marked as being proprietary. In the case of the June 9,1998, letter, none of the errata pages for WCAP-14845 contained Westinghouse proprietary information, thus no affidavit was necessary and the letter can be placed in the NRC public document room. Westinghouse has been verbally informed by the NRC that the Westinghouse letter of July 14,1998, (reference 5), appeared to contain proprietary information that was not clearly identified other than being marked " Westinghouse Proprietary Class 2" on the page and also that there was no affidavit included with the letter. The July 14,1998, letter contained errata for WCAP-14407, Revision 3, which is a proprietary report. In accordance with Westinghouse company policy, each page of a proprietary report has " Westinghouse Proprietary Class 2" on the page header. Specific information that is proprietary is then indicated with brackets. It is possible that there will be no information on a page that is marked as being proprie'ery, in the case of the July 14, 1998, letter, none of the errata pages for WCAP-14407 contained Westinghouse proprietary information, thus no affidavit was necessary and the letter can be placed in the NRC public document room. sm nr P0/CO*d 2002 SIP 10CIO 01 2LLP PLC 21P 3T11(130dNOW ')d0 da 11:s1 86,81 000
- P00'300d 10101 **
q DCP/NRC1415 NSD-NRC-98 5759 August 17,1998 On August 14,1998, Westinghouse was verbally informed by the NRC that the information contained in Chapter 18 of Revision 0 of the AP600 Standard Safety Analysis Report (SSAR) that was submitted to the NRC on June 26,1992, and was requested to be withdrawn by Reference 6, fonns the basis of the Chapter 18 of the AP600 Final Safety Evaluation report that will soon be issued by the NRC and therefore cannot be withdrawn without seriously affecting the FSER issuance date. To maintain this information as proprietary, Westinghouse would have to provide a marked proprietary version and a corresponding nonproprietary version of this material. Reference 6 pointed,out that Chapter 18 has been entirely reformatted since the SSAR was submitted originally as a result of Westinghouse significantly changing the approach being taken to human factors as a part of design certification. As a result, the information in Revision 0 through 8 of the Scar is essentially no longer applicable to the AP600 design certification process, except for the information contained in Subsection 18.9.8.1 - Development of emergency operating procedures and Tables 18.9.8-1 through 18.9.8 Emergency 4 response guidelines, which was declared to be nonproprietary in Reference 6. Given the desire to complete the AP600 FSER and Final Design Approval in a timely manner, Westinghouse will no longer consider the material in Chapter 18 of Revisions 0 through 8 of the SSAR to be proprietary. This response addresses the proprietary issues delineated in the references. Lfh 3riaa A. McIntyre, Manager (- Advanced Plant Safety and Licensing jml cc: J. W. Roe - NRC/NRR/DRPM J. M. Sebrosky - NRC/NRR/DRPM W. C. Huffman - NRC/NRR/DRPM H. A. Sepp - Westinghouse m2..,r P0/PO*d 2002 GIP 10CIO 01 2LLP PLC ZIP 37710308NOW-DMO dd ll:GI 86.81 900}}