HEAT TRANSFER SURFACE FOR EBULLIENT COOLING AND EBULLIENT COOLING DEVICE

摘要

PROBLEM TO BE SOLVED: To allow discharge of a gas-phase refrigerant from a porous body to be facilitated while facilitating nuclear boiling at an entire region in the vicinity of a heat receiving surface out of the porous body.;SOLUTION: In a heat transfer surface for ebullient cooling where a porous body 5 is formed on a heat generation surface 4b for cooling the heat generation surface 4b by latent heat of vaporization as a result of that the refrigerant is boiled and evaporated, the porous body 5 has a lamination structure in which a first porous layer 51 and a second porous layer 52 are laminated in this order from a heat receiving surface 5a side of the porous body 5. In this case, the first porous layer 51 has a given porosity in its layer and the second porous layer 52 has a porosity higher than the porosity of the first porous layer 51 in an entire region of its layer.;COPYRIGHT: (C)2014,JPO&INPIT