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Journal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.4, No. 11)

Publication Date:

Authors : ;

Page : 124-137

Keywords : Air conditioner; dry bulb temperature; effectiveness; heat transfer; specific cooling capacity.;

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The hot weather and electric energy is a great problem in country such as Iraq. Energy used for cooling is an important part of this energy. The aim of the present work is design and develops a low cost air conditioner and also works by electric charging. The paper presents study of parameters which affect air properties and heat transfer. The results of experimental work show that increasing dry bulb temperature of air (DBT) leads to the increase in (?DBT) and other propert ies. The inlet (DBT) of air varies from (34 ?C to 41 ?C) leads to the increase in (?DBT) from (12.8 ?C to 16.7 ?C) and specific cooling capacity from (16.12 kJ/kg to 25.84kJ/kg). Effect of air velocity is passive on (?DBT), specific cooling capacity and other properties. The increase in air velocity leads to the decrease in (?DBT) from (12.5 ?C to 3.4 ?C) and specific cooling capacity from (22.55kJ/kg to 4.96kJ/kg). The decrease in water temperature leads to increase in (?DBT). After a period of operating, water temperature will be high which leads to a decrease in average (?DBT). At water temperature is (7.8 ?C), (?DBT) is (12.54 ?C), while at water temperature is (18 ?C), (?DBT) is (7.9 ?C). Has been compare performance evaluation of system with other systems in ter ms of (?DBT) and Energy consumption.

Last modified: 2015-11-07 23:12:55