Abstract
Loop heat pipes (LHPs) are two-phase heat-transfer devices using evaporation and condensation and are widely applied to various thermal control devices used in spacecraft, automobiles, PCs, LED, power semiconductor devices, etc. This paper reports development of the LHP using copper porous media for IGBT cooling on trains. The effects of wick shape, porous structure of the wick, and contact state between the evaporator case and wick on the evaporator heat-transfer coefficient are evaluated experimentally. This cooling system using the LHP and vehicle traveling wind can be applied to thermal management of transportation.
