An experimental study on gas carryunder in downflow from a two-phase mixture surface
Conference
·
· Transactions of the American Nuclear Society; (USA)
OSTI ID:6025723
In the natural circulation boiling water reactor (BWR) without a steam separator, the steam that is generated in the reactor core and then rises in the riser mainly passes through a two-phase mixture surface, but some steam is carried under into the downcomer along with the circulating liquid phase. The carryunder flow rate is an important factor for evaluation of the natural circulation flow rate and the feedwater subcooling. The study described in this paper clarifies the mechanism of two-phase separation in the downcomer and the gas carryunder characteristics for various flow conditions based on a small-scale air/water experiment.
- OSTI ID:
- 6025723
- Report Number(s):
- CONF-900608--
- Conference Information:
- Journal Name: Transactions of the American Nuclear Society; (USA) Journal Volume: 61
- Country of Publication:
- United States
- Language:
- English
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