During the last three decades, the world has witnessed significant economic,industrial, and technological developments. One important aspect of these developments is the implementation of modern cooling techniques. Air conditioning has been of primary concern and for this purpose, cooling systems were introduced. The volume of these systems is expected to increase of about four times by the year 2010 which is going to lead to a large increase in electric energy consumption. Cooling large open areas is really a need for the population nowadays and for this, in turn, it will lead to...