Loop Heat Pipe Operating Temperature Dependence on Liquid Line Return Temperature

摘要

A Loop Heat Pipe (LHP) is a passive two-phase heat transfer device developed and successfully employed to cool spacecraft (satellite) electronics.The intrinsic benefits of this technology (lightweight,small volume,high thermal conductance) make it an attractive potential solution to many problems in ground vehicle thermal management.As most published LHP research has focused on cooling orbiting spacecraft components,there is little knowledge of how LHPs perform under the temperature extremes (-40°C to 40°C) and diurnal/seasonal fluctuations anticipated with terrestrial applications.Ambient temperature extremes mandate consideration of transport line heat exchange with the surroundings (parasitic losses/gains).