| 离心力场下H2O和R12热驱动换热特性实验研究 |
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| 引用本文： | 杨敏,常海萍,毛军逵.离心力场下H2O和R12热驱动换热特性实验研究[J].工程热物理学报,2004,25(2):302-304. |
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| 作者姓名： | 杨敏 常海萍 毛军逵 |
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| 作者单位： | 南京航空航天大学能源与动力学院,江苏,南京,210016;南京航空航天大学能源与动力学院,江苏,南京,210016;南京航空航天大学能源与动力学院,江苏,南京,210016 |
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| 基金项目： | 国家自然科学基金资助项目(No.50276027)，国防基础科研资助项目(No.J1400D001) |
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| 摘 要： | 本文实验研究了离心力场下细微封闭循环通道中,以H2O和氟利昂R12为热驱动介质的热驱动流动规律和换热特性,重点分析了热驱动换热效果随Ra数Ro数的变化规律以及冷却效果。实验结果表明:在热流密度和旋转速度相同的条件下,采用介质R12可以获得较高的平均换热系数,冷却效果也优于以H2O为介质的冷却效果。最后建立了两种介质条件下相应的准则关系式。
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| 关 键 词： | 热驱动 热驱动介质 细微通道 旋转 换热系数 |
| 文章编号： | 0253-231X(2004)02-0302-03 |
| 修稿时间： | 2003年12月10 |
EXPERIMENTAL INVESTIGATION OF THERMALLY DRIVING HEAT TRANSFER CHARACTERISTICS OF H2O AND R12 IN A CENTRIFUGAL FORCE FIELD |
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| YANG Min CHANG Hai-Ping MAO Jun-Kui.EXPERIMENTAL INVESTIGATION OF THERMALLY DRIVING HEAT TRANSFER CHARACTERISTICS OF H2O AND R12 IN A CENTRIFUGAL FORCE FIELD[J].Journal of Engineering Thermophysics,2004,25(2):302-304. |
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| Authors: | YANG Min CHANG Hai-Ping MAO Jun-Kui |
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| Abstract: | Experiments have been carried out to investigate the new cooling technology using the liquid's thermally driving characteristics in a rotating micro-circular enclosure which would enhance the heat transfer of the thermal driving of H2O and R12 varying with rotating speed and heat flux were investigated .The results have shown that the characteristics of the thermal driving of R12 are similar with those of H2O, but with better cooling effect that H2O. In addition, through those experimental data the heat transfer criterion relationship expression has been created. |
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| Keywords: | thermal driving thermal driving medium micro-circular rotating heat transfer coefficient |
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