Effect of heating temperature on start-up and heat transfer performance of Na-K alloy heat pipe - 文章详情页

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EI PKU CSCD

摘要：

The　performances　of　the　start-up　and　heat　transfer　of　the　heat　pipe　charged　with　Na-K(55%wt　K)　were　studied　under　the　heating　temperatures　of　300,　400,　500,　550,　600,　and　650.　The　condenser　section　of　the　heat　pipe　was　cooled　by　the　cooling　water.　The　outside　wall　temperatures　of　the　heat　pipe　were　measured.　The　temperatures　at　the　inlet　and　outlet　of　the　cooling　water　were　measured　to　estimate　the　heat　transfer　quantity　and　heat　transfer　coefficient　of　the　Na-K　heat　pipe.　Results　showed　that　the　condenser　section　of　the　Na-K　heat　pipe　cannot　start　up　completely　at　the　heating　temperature　of　300-550.　The　heat　transfer　quantity　and　heat　transfer　coefficient　of　the　Na-K　heat　pipe　were　very　low.　When　the　heating　temperature　were　set　as　600　and　650,　the　condenser　section　of　the　heat　pipe　starts　up　completely,　and　the　heat　pipe　achieves　in　an　equilibrium　of　the　heat　transfer.　Consequently,　the　heat　transfer　quantity　and　heat　transfer　coefficient　of　the　Na-K　heat　pipe　increase　significantly.　©　2019,　Editorial　Board　of　Acta　Energiae　Solaris　Sinica.　All　right　reserved.

关键词：

Binary alloys Cooling water Heating Heat pipes Heat transfer Heat transfer coefficients Heat transfer performance Phase transitions Potassium Potassium alloys Sodium Sodium alloys

作者机构：

[ 1 ] [Jia, Xianjian]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Guo, Hang]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Guo, Qing]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Yan, Xiaoke]National Institute of Metrology, Beijing; 100013, China
[ 5 ] [Ye, Fang]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Ma, Chongfang]MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation and Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

郭航
[guo, hang]moe key laboratory of enhanced heat transfer and energy conservation and beijing key laboratory of heat transfer and energy conversion, college of environmental and energy engineering, beijing university of technology, beijing; 100124, china

电子邮件地址：

hangguo@bjut.edu.cn

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