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首页> 美国政府科技报告 >RELAP5 Assessment on Direct-Contact Condensation in Horizontal Concurrent Stratified Flow. International Agreement Report
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RELAP5 Assessment on Direct-Contact Condensation in Horizontal Concurrent Stratified Flow. International Agreement Report

机译：水平并流分层流中直接接触冷凝的RELap5评估。国际协议报告

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Assessment on the direct-contact condensation model was carried out using RELAP5/MOD2 Cycle 36.04 and the RELAP5/MOD3 Version 5m5 codes. The test data was obtained from the experiments at Northwestern University, which involved the horizontal cocurrent stratified steam/water flow in a rectangular channel. A nodalization sensitivity study and a simulation with a fixed interfacial area, same as test section, were also carried out to examine the effect of the interfacial heat and mass transfer. The results showed that the RELAP5 code model under the horizontal stratified flow regime predicted the condensation rate well, though the interfacial heat transfer area was underpredicted. However, some discrepancies with experimental results were found in water layer thickness and local heat transfer coefficient especially when there was a wavy interface.

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