三面加热窄矩形通道内饱和沸腾起始点的实验研究

周云龙1 郭新田1 张文超1 陈旭1

(1.东北电力大学能源与动力工程学院, 吉林省吉林市 132012)

【摘要】以去离子水为实验介质, 对截面为3 mm×43 mm的三面加热窄矩形通道内饱和沸腾 (FDB) 起始点进行了实验研究。分析了部分热工参数对饱和沸腾起始点的影响, 对三面加热窄矩形通道内饱和沸腾起始点的数据进行非线性回归分析, 得到适用于三面加热窄矩形通道饱和沸腾起始点热通量的经验关系式。结果表明:新拟合得到的关系式能较准确地预测三面加热窄矩形通道内饱和沸腾起始点的热通量, 其预测值的相对误差为15.17%。将新关系式计算结果与现有实验数据进行比较, 源于单面加热窄矩形通道的实验数据与新关系式符合程度较好, 表明新关系式可适用于单面加热窄矩形通道。

【关键词】 三面加热; 窄矩形通道; 饱和沸腾起始点; 两相流; 传热; 相变;

【DOI】

【基金资助】 国家自然科学基金项目 (51541608, 51776033) the National Natural Science Foundation of China (51541608, 51776033)

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This Article

ISSN:0438-1157

CN: 11-1946/TQ

Vol 69, No. 12, Pages 4972-4978+5406

December 2018

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Article Outline

摘要

  • 引言
  • 1 实验装置
  • 2 实验方法及数据处理
  • 3 实验结果分析
  • 4 结论
  • 符号说明
  • 参考文献