skip to main content

Title: RELAP5/MOD3 subcooled boiling model assessment

This report presents the assessment of the RELAP5/Mod3 (5m5 version) code subcooled boiling process model which is based on a variety of experiments. The accuracy of the model is confirmed for a wide range of regime parameters for the case of uniform heating along the channel. The condensation rate is rather underpredicted, which may lead to considerable errors in void fraction behavior prediction in subcooled boiling regimes for nonuniformly or unheated channels.
Authors:
;  [1]
  1. Russian Research Center, Moscow (Russian Federation). Nuclear Safety Inst.
Publication Date:
OSTI Identifier:
654175
Report Number(s):
NUREG/IA--0025
ON: TI98005215; TRN: 98:010310
Resource Type:
Technical Report
Resource Relation:
Other Information: DN: International Agreement Report prepared as part of the Agreement on Research Participation and Technical Exchange under the International Code Application and Maintenance Program (CAMP); PBD: May 1998
Research Org:
Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, Washington, DC (United States);Russian Research Center, Nuclear Safety Inst., Moscow (Russian Federation)
Sponsoring Org:
Nuclear Regulatory Commission, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
22 NUCLEAR REACTOR TECHNOLOGY; 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; 99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; R CODES; BWR TYPE REACTORS; PWR TYPE REACTORS; REACTOR ACCIDENTS; TWO-PHASE FLOW; SUBCOOLED BOILING; VOID FRACTION; EVALUATION; MATHEMATICAL MODELS