Abstract:
Conventional vapor compression air conditioning systems are notorious for their greenhouse
gas emissions and ozone depletion e ect along with high energy consumption rate.
Implementing new environment friendly and sustainable technologies in this eld has become
an area of interest for researchers across the globe. Solar absorption cooling(SAC)
systems have the potential to be considered as the leading technologies for air conditioning
today, as they utilize harmless working
uids and can be used alongside conventional
systems for better economic performance. In the recent studies, SAC systems have proved
to be environment friendly, economically viable and energy e cient.
In this study, an absorption air conditioning system has been designed and simulated
for one of our laboratories in IUT (Islamic University of Technology), which is situated
in Gazipur, Bangladesh. Analyzing the hourly solar radiation data and the overall climatic
conditions of Bangladesh, and following the recent literature, the combination of
Double-e ect absorption chiller and Evacuated Flat Plate Collector was selected. By
conducting regression analysis on a commercially available chiller, a double e ect system
was designed to meet the cooling demands of the laboratory. Python code was developed
for simulating the results of the designed system, which indicated that 75% of the annual
cooing demand could be supplied solely by solar energy if the system is incorporated,
while relying on an auxiliary source for ful lling the remaining 25%.
Despite moderate amount of solar irradiation throughout the calendar year, there has
been very limited research for the prospects of SAC systems in Bangladesh. The objective
of this study was to design an overall system that is well suited for the existing conditions
in Bangladesh and pave the way for future research in this eld for further improvements
and modi cations.
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