ACRS THERMAL-HYDRAULIC Phenomena Subcommittee Meeting - February 23, 1999

ADVISORY COMMITTEE ON REACTOR SAFEGUARDS
 THERMAL-HYDRAULIC PHENOMENA SUBCOMMITTEE MEETING
 FEBRUARY 23, 1999
 WESTINGHOUSE BE LBLOCA METHODOLOGY FOR UPI PLANTS
 ROCKVILLE, MARYLAND
 
 - TOPICAL AGENDA -
  


	TOPIC			PRESENTER      	    TIME

1.  Introduction                      G. Wallis          8:30 am

2.  Overview of Experimental          D. Bessette        8:45 - 10:15 am
     Results


       ** BREAK **                      	        10:15 - 10:30 am



3.  Upper Plenum Pooling and          M. Nissley (W)    10:30 - 12:00 noon
    Drain Distribution



    .  Predictions of UPTF and CCTF Data
    .  Sensitivity of Data Predictions to Injection Modeling
    .  Comparisons of PWR Predictions with MPR/Siemens Estimates
    .  Sensitivity of PWR Predictions to Injection Modeling



       ** LUNCH **                                      12:00 - 1:00 pm



4.  Assessment of Subcooled           M. Nissley         1:00 - 2:00 pm
    CCFL Predictions



    .  Comparisons with Data
    .  Assessment of PWR Predictions
       Using Correlations


5.  Reflooding of the Hot Assembly    M. Nissley         2:00 - 3:30 pm

    in a UPI Plant

    .  Experimental Evidence
    .  Sensitivity of CCTF Predictions to Modeling
    .  Details of Predicted PWR Flow Pattern
    .  Sensitivity of PWR Results to Modeling


       ** BREAK **                                       3:30 - 3:45 pm


6.  Westinghouse Concluding           M. Nissley         3:45 - 4:00 pm
    Remarks


7.  Overview of NRR Safety            F. Orr (NRR)       4:00 - 4:45 pm
    Evaluation for Westinghouse
    BE LBLOCA Methodology


8.  Subcommittee Caucus and Adjourn                      4:45 - 5:00 pm


NOTE:  	Presentation time should not exceed 50 percent of the total
	time allocated for a specific item.  The remaining 50 percent
	of the time is reserved for discussion.

	Number of copies of the presentation materials to be provided
	to the ACRS - 25.



ACRS Contact: P. Boehnert PAB@NRC.GOV ACRS Senior Staff Engineer