In tropical and subtropical regions, greenhouses may
be exposed to the risk of heat when the outside
environment tends to be hot. Adaptation of a greenhouse
microclimate to local climate conditions is important for
the improvement of resource use efficiency of greenhouse
crop production. There is a necessity to develop cheap
and effective technology suitable to local climatic
conditions to boost up the greenhouse industry. In this
case cooling systems are essential to achieve acceptable
microclimatic, the maximum utilization of equipment and
high returns commanded by manufactures, consequently,
the evaporative cooling system is considered as an energy
efficient cooling method that only uses water as the