Passive Indirect Evaporative Cooler

F. F. Dall'Agnol[1], A. Pavani[1]
[1]Center for Information Technology Renato Archer, Campinas, SP, Brazil
发布日期 2014

Evaporative coolers are viable alternative to air conditioners because of their low power consumption. However, in tropical humid environments the increased humidity that accompanies the cool air in the evaporative coolers causes an uncomfortable wet feeling, since it hinders the evaporation of our natural transpiration. Here we test a configuration of evaporative cooler called Indirect Cycle consisting of alternated wet and dry ducts. The air from the dry ducts is conducted indoor providing a truly refreshing air, while the wet air is either discharged or conducted to ambients like attics, repositories, etc. We analyze a Passive Cooler, which relies on the convection to drive the air. We obtain the parameters that maximize the heat sequestration per unit volume.