水下液体射流对池表面凝结的增强作用

IF 0.6 4区 工程技术 Q4 Engineering Nuclear Engineering International Pub Date : 1997-05-01 DOI:10.1115/imece1997-0602
R. Shumway
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引用次数: 1

摘要

一种先进的核反应堆设计有一个连接到蒸汽发生器出口静压室底部的余热排出(RHR)管道。在假定的冷却剂损失事故期间,静压室内的水会形成热分层。由于射流的搅拌作用,通过RHR管注入的冷水具有增加池表面蒸汽凝结的潜在效果。增加的量取决于许多因素,包括射流速度和射流注入点上方的池高。本文的研究主题是射流击破池表面前后的蒸汽凝结速率预测。突破前的数据和相关关系已经存在,突破后的方法已经发展。这些模型已纳入称为RELAP5(1995)的反应堆安全分析计算机软件。提出了预测与数据的比较。
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Condensation Enhancement on a Pool Surface Caused by a Submerged Liquid Jet
One advanced nuclear reactor design has a residual heat removal (RHR) pipe connected to the bottom of a steam generator outlet plenum. The water in the plenum can become thermally stratified during postulated loss of coolant accidents. Cold water injected through the RHR pipe has the potential effect of increasing the steam condensation on the pool surface due to the stirring action of the jet. The amount of increase depends on a number of factors, including the jet velocity and the pool height above the jet injection point. Prediction of steam condensation rates, before and after the jet breaks the pool surface, is the topic of this paper. Data and correlations exist for pre surface breakthrough and a method has been developed for post breakthrough. The models have been incorporated into the reactor safety analysis computer software known as RELAP5 (1995). Comparisons of predictions against data are presented.
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来源期刊
Nuclear Engineering International
Nuclear Engineering International 工程技术-核科学技术
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6-12 weeks
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