Calculation of vapor compression heat pump evaporator gravity-independent - Details

Author：

Ma, Rui (Ma, Rui.) | Wu, Yuting (Wu, Yuting.) (Scholars：吴玉庭) | Liu, Gang (Liu, Gang.) | Ma, Chongfang (Ma, Chongfang.)

Indexed by：

EI Scopus PKU CSCD

Abstract：

Vapor　compression　heat　pump　has　a　good　prospect　of　application　in　high　temperature　environments　and　high-power　spacecraft　thermal　control　system.　Aerospace　vapor　compression　heat　pump　operates　in　the　microgravity　environment.　Microgravity　vapor　compression　heat　pump　adaptability　is　the　key　to　a　vapor　compression　heat　pump　technology　aerospace　research　and　development.　The　evaporator　is　a　key　component　of　the　vapor　compression　heat　pump.　By　calculating　vapor　compression　heat　pump　evaporator　to　explore　its　gravity-independent　conditions　and　get　gravity-independent　critical　velocity　and　critical　diameter　at　different　evaporation　temperatures　and　under　different　flow　rates.　The　results　showed　that　the　minimum　critical　velocity　in　the　evaporator　gravity-independent　region　in　1.45-1.5　m·s-1.　The　maximum　critical　diameter　increases　with　cooling　capacity,　and　cooling　capacity　from　50　W　to　300　W,　the　critical　diameter　from　0.42　mm　to　1.02　mm.　©　All　Rights　Reserved.

Keyword：

Pumps Microgravity Microgravity processing Cooling Evaporators Heat pump systems

Author Community：

[ 1 ] [Ma, Rui]Environment and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Wu, Yuting]Environment and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Liu, Gang]Environment and Energy Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Ma, Chongfang]Environment and Energy Engineering, Beijing University of Technology, Beijing 100124, China