| 气空间中不凝结气体对自然循环流动沸腾的影响 |
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| 引用本文： | 王飞,马昌文,博金海.气空间中不凝结气体对自然循环流动沸腾的影响[J].清华大学学报(自然科学版),1997(5). |
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| 作者姓名： | 王飞 马昌文 博金海 |
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| 作者单位： | 清华大学核能技术设计研究院 |
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| 基金项目： | 国家“九五”科技攻关项目 |
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| 摘 要： | 为了研究不凝结气体对反应堆安全的影响，在清华大学核能技术设计研究院５ＭＷ热工水力实验台架上研究了气空间中有不凝结气体存在时自然循环两相流稳定性的变化。实验发现：在气空间中有很高的氮气分压情况下，即使冷凝器投入运行，系统仍可能出现沸腾和两相流振荡，汽液交界面的温度可达到气空间总压对应的饱和温度，蒸汽分压在气空间中存在不均匀分布。这些现象的研究对压水反应堆变工况运行有重要意义。并对汽液交界面的Ｓｔｅｆａｎ流现象进行了理论分析。
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| 关 键 词： | 不凝结气体 两相流稳定性 压水反应堆 沸腾 |
Influence of noncondensable gas in the gas space on natural circulation flow boiling |
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| Wang Fei,Ma Changwen,Bo Jinhai Institute of Nuclear Energy Technology,Tsinghua University,Beijing.Influence of noncondensable gas in the gas space on natural circulation flow boiling[J].Journal of Tsinghua University(Science and Technology),1997(5). |
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| Authors: | Wang Fei Ma Changwen Bo Jinhai Institute of Nuclear Energy Technology Tsinghua University Beijing |
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| Institution: | Wang Fei,Ma Changwen,Bo Jinhai Institute of Nuclear Energy Technology,Tsinghua University,Beijing 100084 |
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| Abstract: | Influence of noncondensable gas on natural circulating two phase flow system stability is studied on the test apparatus at the INET, Tsinghua University in order to investigate its influence on reactor safety. It is found that, if the condenser is working, boiling and two phase flow oscillation may appear in the system even if there is high N 2 partial pressure in the gas space. The gas liquid interface temperature reaches the saturation temperature corresponding to the system pressure instead of steam partial pressure. There is a distribution of vapor partial pressure in the gas space. The study is important for PWR varied condition operation. The Stefan flow phenomena on gas liquid interface are analysed. |
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| Keywords: | noncondensable gas two phase flow stability pressurized water reactor(PWR) boiling |
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