Open AccessExperimental study on performance improvement of air cooler incorporating two-stages
Author(s) -
M. M. Muhsen,
Ali A. Abdulrasool,
Basim Rheem Sadiq
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1067/1/012112
Subject(s) - evaporative cooler , heat exchanger , refrigerant , air conditioning , environmental science , relative humidity , meteorology , humidity , dew point , air temperature , process engineering , engineering , mechanical engineering , physics
An experimental study was conducted using two compact heat exchangers (air-cooled) to improve indoor air conditions in Iraq summer weather. The layout of the rig is constructed in such a way that the air flows through a two-stage direct/indirect cooling system to minimize the high air temperature. The water in the basin of the unit was then unitized to the second stage as a working fluid. The findings showed that the temperature could be changed to a point 13% lower than that achieved by the standard design at an affordable cost and in an environmentally appropriate manner. The difference in the humidity ratio was also comparatively reduced with respect to the original discharge from the evaporative cooler alone, as the new system eliminates only sensible heat. This new design, is well-suited to hot and dry conditions where the cost of the air conditioning system based on refrigerants is high, the percentage increase in the overall effectiveness is about 25%.