ML18184A426

Final Non-proprietary Safety Evaluation of PWROG-15060, Pump Suction Gas Accumulation Operability Criteria Guidance (CAC No. MF8075; EPID L-2016-TOP-0006)

ML18184A426
Person / Time
Site:	99902028
Issue date:	06/19/2019
From:	Dennis Morey NRC/NRR/DLP/PLPB
To:	Pimentel F Nuclear Energy Institute
Holonich J, NRR/DLP/PLPB, 415-7297
Shared Package
ML18184A416	List: ML18184A409 ML18184A426
References
EPID L-2016-TOP-0006 PWROG-15060
Download: ML18184A426 (84)

Text

/RA/

Code of Federal Regulations

1.1 Froude Number, N FR ....................................................................................................... 1.2Acceptable Pump Inlet Characteristics ............................................................... 1.3Operating Procedures........................................................................................... 1.4The TR Model ......................................................................................................... 1.5Initial Pressure Transient ..................................................................................... 1.6DC Length Requirement ....................................................................................... 1.7WCAP-17276-P, the Simplified Equation

............................................................. 1.8The WCAP-17271-P Methodology ........................................................................ 1.9Lower Horizontal Pipe

........................................................................................... 1.11WCAP-17271 Correlation Uncertainty Considerations ...................................... 1.12WCAP-17271 Acceptability ................................................................................... 1.13 Conclusion Summary .......................................................................................... 3.1Tests and Test Scaling ......................................................................................... 3.2Topical Report Section 3, Acceptance Criteria .................................................. 3.3TR Section 4, WCAP-17271 Application .............................................................. 3.4TR Section 5, Application of WCAP-17276 Simplified Equation ....................... 3.5TR Section 6, Gas Transport Analysis Methodology Limitations ..................... 3.6TR Section 7 Guidance If Limitations Cannot Be Met

........................................ 3.7TR Section 8 Treatment of Uncertainties ............................................................ 3.8TR Section 9 Comparison of WCAP-17271 ......................................................... 3.9TR Section 10 Implementation Process .............................................................. 3.10TR Section 11, Example Problem ........................................................................

3.11 TR Section 12, Road Map for Determining Operability Limits ................................. 3.13TR Appendix A, Description of Dynamic Venting Test Facility ........................ 4.1 PWROG-15060 ................................................................................................................ 4.2 Analysis Methods and Related Findings ..................................................................... 4.3 Tests ................................................................................................................................ 4.4 Lower Horizontal Pipe Issues ....................................................................................... 4.5 Offtakes and Tees .......................................................................................................... 4.6 Additional Guidance ...................................................................................................... 4.7 Errors and Approximations .......................................................................................... 5.0LIMITATIONS AND CONDITIONS .........................................................................

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Federal Register

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