Proj
J-GLOBAL ID：200904026094109475
Research Project code：9800009707
Update date：Jan. 26, 2005
Transient behavior of natural circulation for boiling two-phase flow
沸騰二相流の自然循環過渡特性
Study period：1988 - 2004
Organization (1)：
Investigating Researcher (1)：
Research overview：
A natural circulation BWR is one proposal of next generation LWRs. Thermo-hydraulic instability, which may appear during start-up and greatly influences the feasibility, is investigated experimentally under simulating normal and abnormal start-up process. An advanced numerical method is developed for slowly transient two-phase flow. Moreover, a flow diode is proposed to implement the pump coastdown characteristics of the ABWR using internal pumps and to switch smoothly over to natural circulation after a pump trip transient. The characteristics required for the flow diode are investigated
Keywords (9)：
BWR
, natural
, reactor
, fuel
, human
, reactor
, convective
, preventive
, starting
Ordinary Research
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