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Analysis of FLECHT and FLECHT-SEASET reflood tests with RELAP5/MOD2

Journal Article · · Nucl. Technol.; (United States)
OSTI ID:5348992

Simulations of FLECHT and FLECHT-SEASET unblocked forced flow reflood tests, were performed using RELAP5/MOD2 code reflood capabilities. The predictions of the high flooding injection rate and steam cooling tests were in good agreement with the measurements. The low flooding rate tests showed a tendency to predict lower peak cladding temperatures than the data and unrealistic void fraction oscillations. The spikes in void fraction histories were flow-regime dependent. The prediction for the quench times at the upper bundle elevations was overestimated.

Research Organization:
The Babcock and Wilcox Co., Nuclear Power Div., P.O. Box 10935, Lynchburg, VA 24506-0935
OSTI ID:
5348992
Journal Information:
Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 74:2; ISSN NUTYB
Country of Publication:
United States
Language:
English