Heat exchanger

Details Heat exchanger Heat exchanger

F - Mech Eng,Light,Heat,Weapons

28

F

F28F 13/00 (2006.01) F25B 9/14 (2006.01)

Patent

CA 2429489

In a heat exchanger (10) for transferring heat from a first fluid to a second fluid, which heat exchanger (10) comprises one or more flow passages (12) for a first fluid, the outer wall (26) of these passages is in heat-tranferring contact wiht a flow body (20) made from metal foam for a second fluid. This metal foam has a gradient of the volume density of the metal, so that it is possible to achieve a favourable equilibrium between heat transfer and conduction, on the one hand, and flow resistance, on the other hand.

L'invention concerne un échangeur de chaleur (10) permettant de transférer la chaleur entre un premier et un second fluides. Ledit échangeur de chaleur (10) comprend au moins un passage d'écoulement (12) destiné à l'écoulement du premier fluide, sa paroi extérieure étant en contact de transfert thermique avec un corps d'écoulement (20) constitué de mousse métallique destiné à l'écoulement du second fluide. Cette mousse métallique possède un gradient de densité de volume métallique tel qu'il est possible de réaliser un équilibre favorable entre transfert thermique et conduction d'une part, et résistance à l'écoulement d'autre part.

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