Start-up and heat transfer performance of a sodium-potassium alloy heat pipe under different conditions of heating power - 文章详情页

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A　sodium-potassium　ally　(45-wt.%-Na　and　55-wt.%-K)　heat　pipe　was　experimentally　tested　to　investigate　the　effect　of　heating　powers　(800,　1000,　1200,　1400,　and　1600W)　on　start-up　and　heat　transfer　performances.　The　results　showed　that　under　the　tested　operation　conditions,　the　sodium-potassium　ally　heat　pipe　presented　an　optimal　start-up　performance　with　the　heating　power.　Within　the　range　of　800-1600W　of　heating　power,　the　heat　pipe　could　achieve　a　dynamic　equilibrium　state　of　heat　transfer　as　the　heat　was　carried　away　by　cooling　water　in　time,　and　the　heat　transfer　coefficient　of　the　sodium-potassium　ally　heat　pipe,　convective　heat　transfer　coefficients　of　evaporator　and　condenser　sections　almost　linearly　increased　with　the　heating　power.　©　2019,　Editorial　Department　of　Journal　of　Aerospace　Power.　All　right　reserved.

关键词：

Cooling water Heat convection Heating Heat pipes Heat transfer Heat transfer coefficients Heat transfer performance Potassium alloys Sodium alloys

作者机构：

[ 1 ] [Guo, Hang]Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Jia, Xianjian]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]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]Division of Thermophysics and Process Measurements, National Institute of Metrology, Beijing; 100013, China
[ 5 ] [Ye, Fang]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]Beijing Key Laboratory of Heat Transfer and Energy Conversion, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing; 100124, China

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