Abstract
This paper proposes new heat removal devices utilizing unidirectional porous media against extremely high heat flux conditions. Before that, we discuss effective thermal conductivity, permeability, and contact thermal resistance etc. for several porous media. The discussion suggests to utilize the unidirectional porous media from the view point of its higher thermal conductivity, direct supply of cooling liquid toward the heat transfer surface, discharge of vapor, reduction in flow resistance and the thermal contact resistance.
