Engineering and Technology Journal

Abstract

Due to the spreading of cooling equipments that works with old cooling
fluids(Freon) in the community,and because of the bad effects of these (Freon)in
case of their spreading on the Ozone layer and the thermal enclosure
phenomenon.It was necessary to provide theoretical and practical studies and
researches on data bases dealing with the field of possibility to replace this kind of
cooling fluids with those that is safe on the Ozone layer and thermal enclosure
phenomenon with the least possible costs.this research included a practical study to
appreciate the performance of a small water cooler(0.5 liter/hour)which submitted
to a number of parameters of design changes that were possible with the least of
costs , this were included by replacing the old cooling fluid that has bad effect on
the Ozone layer(R12)with one that is safe on the Ozone layer(R134a).In addition to
assist the work by conducting several practical procedures on each change on the
water cooling circulation in order to reach the most precise results. The
temperature of the water that is supplied to the consumer was considered as well as
temperature of the compressor as a criterion to appreciate the water cooler
performance with recording all other changes that are possible to compare with in
the results schedule.