AMELIORATION OF THERMAL COMFORT IN DRY TROPICAL CLIMATE BY USE OF AN ECONOMIC-PROCESS - DIRECT EVAPORATIVE COOLING

The characteristics of a dry tropical climate are given; the needs of economic equipment for air cooling are outlined from climatic data and local financial possibilities. It is shown that in this climatic zone, an acceptable thermal comfort can be obtained all year round by direct evaporative cooling of outside air. Experimental results obtained by testing a direct evaporative cooler built locally at a cost compatible with local incomes are given. However,for best thermal comfort, the use of both a direct evaporative cooler and some techniques of passive cooling must be done.