Heat Transfer Fin for Heat Exchanger

Abstract

A heat transfer fin ( 13 ) is provided on a heat transfer tube ( 1 ) wherein a fluid for exchanging heat with air flows. The heat transfer fin which transfers heat by having contact with air is composed of a metal foam having a pore density of 20 PIP or more.

1 . A heat transfer fin for a heat exchanger, wherein a heat transfer fin ( 13 ) is arranged on a heat transfer tube ( 1 ) through which fluid flows for exchanging heat with air, the heat transfer fin ( 13 ) contacts air to exchange heat, and the heat transfer fin ( 13 ) is made of foam metal having a pore density of 20 PIP or greater. 
   
   
       2 . The heat transfer fin for a heat exchanger according to  claim 1 , wherein a heat transfer tube ( 1 ) through which fluid flows for exchanging heat with air is provided as in a plurality, and the plurality of heat transfer tubes ( 1 ) are set at an interval H of 12 mm or less. 
   
   
       3 . The heat transfer fin for a heat exchanger according to  claim 1  or  2 , wherein the heat exchanger is a stacked type heat exchanger. 
   
   
       4 . The heat transfer fin for a heat exchanger according to  claim 1 , wherein the pore density is 20 PIP or greater and 60 PIP or less. 
   
   
       5 . The heat transfer fin for a heat exchanger according to  claim 2 , wherein an interval H between the plurality of heat transfer tubes ( 1 ) is set at 4 mm or greater and 12 mm or less.