水平矩形窄缝通道内水沸腾换热的实验研究

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Experimental Study on the Heat Transfer of Water Boiling Flow in Narrow Horizontal Rectangular Channels

1. State Key Laboratory of Multi Phase Flow in Power Engineering, Xi'an Jiaotong University, 710049, China;
2. National Key Laboratory of Bubble Physics and Natural Circulation, Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 以去离子水为工质,在1.0-6.0MPa压力范围内,对大宽高比(1.0×60mm、1.8×60mm、2.5×60mm)矩形狭窄通道内两相沸腾的换热特性进行了实验研究。分析了压力、窄缝间隙、热流密度、质量流量、含汽率等参数对矩形窄缝通道内水的沸腾换热的影响,得到了矩形窄缝通道内沸腾换热经验关系式,与实验数据符合良好。
- 宽高比 /
- 矩形窄缝通道 /
- 沸腾换热
Abstract: The characteristics of boiling heat transfer were experimentally investigated in narrow rec-perimental data well.tangular channels with large width-height ratio at pressure ranging from 1.0 to 6.0MPa.The effect of pressure,heat flux,mass flux,gap size and quality on the heat transfer was analyzed.At last,a new developed correla-tion calculated heat transfer coefficients was obtained in narrow rectangular channels,which can predict ex-
- Width-height ratio /
- Narrow rectangular channel /
- Boiling heat transfer