RELAP5 modeling of a Savannah River Site reactor

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:6287364

Dimenna, R A ^[1]; Caraher, D L ^[2]

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1. Westinghouse Savannah River Co., Aiken, SC (USA)
2. EG and G Idaho, Inc., Idaho Falls, ID (USA)

Thermal-hydraulic system analysis in support of Savannah River Site reactor restart is being performed with a modified version of RELAP5/MOD2.5. This paper gives an overview of the Savannah River Site reactor system, the RELAP5 input models developed for the analysis, and the specific phenomena with which the code is having difficulty. The need for code development to address plenum phenomena, air/water behavior, fuel assembly behavior, and degraded pump performance is motivated in terms of the system response to a large break loss-of-coolant accident. Results of benchmark calculations show both the adequacy of the basic models and the need for a better representation of phenomena that are beyond the typical range of RELAP5 application. 9 refs.

• Research Organization: Westinghouse Savannah River Co., Aiken, SC (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 6287364
• Report Number(s): WSRC-MS-90-206; CONF-9009219--5; ON: DE91005664
• Country of Publication: United States
• Language: English

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REACTOR ACCIDENTS
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REACTOR COOLING SYSTEMS
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