TOTAL HEAT EXCHANGER

摘要

PURPOSE:To obtain a total heat exchanger with a high efficiency, by providing a concentration difference in a hygroscopic substance added to a base material. CONSTITUTION:The concentration of a hygroscopic substance 4 infiltrated into a base material 3' having a heat-transmitting property and a moisture-permeable property is varied in the direction of a gas flow so that the concentration is higher on the inlet side for a gas flow on the high humidity side (a) and lower on the outlet side. An organic polymer film having a moisture-permeable property is used for the base material 3 for constituting a partition plate. Accordingly, a higher latent heat exchanging efficiency is obtained by lowering the humidity of the gas flow on the high humidity side (a).