IJAERS: Analysis of an Air Conditioner using both Water Mist and Air for Cooling in Condenser
IJAERS: Analysis of an Air Conditioner using both Water Mist and Air for Cooling in Condenser
Dr.Suwarna Torgal, Kuldeep pawar
This paper considers how the performance can
be improved, when the water mist system is coupled with the air cooled
conditioner as a pre-cool for condenser inlet air to increase the
cooling capacity, and decrease the compressor power consumption .A
theoretical investigation has been carried out to study the thermal
performance of a water mist assisted air conditioner under ambient
temperatures ranging from 25℃ to 45℃. The influence of condenser and
evaporator inlet air temperatures on the cooling capacity and power
consumption has been investigated and presented. A mathematical model of
the existing system was developed. The model was validated using
experimental data recorded from the system. Subsequently, the model
served as a tool to evaluate alternative system design and operating
strategies that lead to optimum system performance. Evaporative cooling
can reduce the air temperature from its dry bulb to wet bulb
temperature. Therefore, it is possible to improve the energy efficiency
of air-cooled Air conditioners by installing water mist system to
pre-cool the outdoor air before entering condensers. In very dry
climates, evaporative coolers, sometimes referred to as swamp coolers or
desert coolers, are popular for improving coolness during hot weather.
An evaporative cooler is a device that draws outside air through a wet
pad, such as a large sponge soaked with water. The sensible heat of the
incoming air, as measured by a dry bulb thermometer, is reduced. The
temperature of the incoming air is reduced, but it is also more humid,
so the total heat (sensible heat plus latent heat) is unchanged. Some of
the sensible heat of the entering air is converted to latent heat by
the evaporation of water in the wet cooler pads. If the entering air is
dry enough, the results can be quite substantial.The influence of
condenser and evaporator inlet air temperatures on the cooling capacity
and power consumption has been investigated and presented. It has been
found that due to the coupling of water mist with air cooled condenser,
the cooling capacity of the air-cooled,air conditioner can be increased
up to 17.5%, and the compressor power consumption can be reduced up to
15.5%. Thus, it is concluded that the application of water mist
condenser, inlet air pre-cooling could increase the COP by up to 37%,
especially when the ambient relative humidity is low[10].
be improved, when the water mist system is coupled with the air cooled
conditioner as a pre-cool for condenser inlet air to increase the
cooling capacity, and decrease the compressor power consumption .A
theoretical investigation has been carried out to study the thermal
performance of a water mist assisted air conditioner under ambient
temperatures ranging from 25℃ to 45℃. The influence of condenser and
evaporator inlet air temperatures on the cooling capacity and power
consumption has been investigated and presented. A mathematical model of
the existing system was developed. The model was validated using
experimental data recorded from the system. Subsequently, the model
served as a tool to evaluate alternative system design and operating
strategies that lead to optimum system performance. Evaporative cooling
can reduce the air temperature from its dry bulb to wet bulb
temperature. Therefore, it is possible to improve the energy efficiency
of air-cooled Air conditioners by installing water mist system to
pre-cool the outdoor air before entering condensers. In very dry
climates, evaporative coolers, sometimes referred to as swamp coolers or
desert coolers, are popular for improving coolness during hot weather.
An evaporative cooler is a device that draws outside air through a wet
pad, such as a large sponge soaked with water. The sensible heat of the
incoming air, as measured by a dry bulb thermometer, is reduced. The
temperature of the incoming air is reduced, but it is also more humid,
so the total heat (sensible heat plus latent heat) is unchanged. Some of
the sensible heat of the entering air is converted to latent heat by
the evaporation of water in the wet cooler pads. If the entering air is
dry enough, the results can be quite substantial.The influence of
condenser and evaporator inlet air temperatures on the cooling capacity
and power consumption has been investigated and presented. It has been
found that due to the coupling of water mist with air cooled condenser,
the cooling capacity of the air-cooled,air conditioner can be increased
up to 17.5%, and the compressor power consumption can be reduced up to
15.5%. Thus, it is concluded that the application of water mist
condenser, inlet air pre-cooling could increase the COP by up to 37%,
especially when the ambient relative humidity is low[10].
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