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Title: RELAP5/MOD3 subcooled boiling model assessment

Technical Report ·
DOI:https://doi.org/10.2172/654175· OSTI ID:654175
;  [1]
  1. Russian Research Center, Moscow (Russian Federation). Nuclear Safety Inst.

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.

Research Organization:
Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, Washington, DC (United States); Russian Research Center, Nuclear Safety Inst., Moscow (Russian Federation)
Sponsoring Organization:
Nuclear Regulatory Commission, Washington, DC (United States)
OSTI ID:
654175
Report Number(s):
NUREG/IA-0025; ON: TI98005215; TRN: 98:010310
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
Country of Publication:
United States
Language:
English