한국원자력학회:학술대회논문집 (Proceedings of the Korean Nuclear Society Conference)
- 한국원자력학회 1995년도 추계학술발표회논문집(1)
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- Pages.383-388
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- 1995
RELAP5 Analysis of a Condensation Experiment in an Inverted U-tube
- Park, Chul-Jin (Korea Atomic Energy Research Institute) ;
- Lee, Sang-Yong (Korea Atomic Energy Research Institute)
- 발행 : 1995.10.01
초록
Two-phase transient phenomena in the noncondensable gas-filled closed loop was investigated numerically using the RELAP5/MOD3 version 3.1 computer code. The condensation heat transfer correlation for noncondensable gases was studied in detail. Two modes of the reflux condensation which can be characterized by countercurrent flow of steam and its condensed water and the oscillatory between reflux condensation and natural circulation were predicted well. However, the natural circulation mode which the condensed water carried over the U-bend concurrently with steam was failed to predict.
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