Experimental Study Of Water Based Air Conditioning System For Space Cooling
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Date
2022-07-01
Authors
Azmin, Abdul Rahman
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Air conditioning system is a must in almost all residential area. There is various
evaporative cooling technique that have been introduced to improve the performance
of this basic appliances. However, cooling using the refrigerant whether it is synthetic
or natural can still affect the environment. In this project, space cooling is intended by
the mean of water-based air conditioning system. The air conditioning system will use
a direct evaporative cooling system and water as refrigerant. The performance of the
cooling system will be investigated through experiment. The air conditioning system
using the direct evaporative cooling and water as refrigerant is built by modifying the
current existence air conditioning system. The compressor in the condenser unit will
be replaced with water pump to circulate the water inside the refrigerant cycle. While
the direct evaporative cooling system will be retrofitted to the condenser unit to lower
the temperature at the condenser air intake. Cooling media pad will be used to reduce
the air temperature and improve the performance of the cooling system. The water
volume flow rate inside the cooling coil is varied to investigate the performance
enhancement. The experiment conducted will carry two main purposes. The first
purpose is to measure the efficiency of the evaporative cooling system with different
volume flow rate in the cooling coil. The second purpose of the experiment is to
measure the performance of the cooling system. The experiment result shows that
cooling system with water volume flow of 6.25×10-5m3
/s. has the highest efficiency
of 44.83%. The experiment also shows the maximum and mean temperature difference
of 6.56ᴼC and 4.62ᴼC respectively when the water volume flow rate in the pipe is
6.25×10-5 m3/s.