Experimental Analysis of Suction Line Heat Exchanger by Using R-134a
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 2
Abstract
Now-a-days Vapour compression system is used for all purpose refrigeration. It is generally used for all industrial purpose from a small domestic refrigerator to a big air conditioning plant. Expansion device is one of the important components in the system that divides the high and low pressure sides. Because of simplicity and low cost, capillary tubes are used as the expansion device in most small refrigeration and air conditioning systems. Capillary tube maintains flow rate of refrigerant flowing through it at desired level, so capillary tube works as an automatic flow rate controller. Another advantage is that capillary tubes allow high and low side pressures to equalize during the off-cycle, thereby reducing the starting torque required by the compressor. The main objective of this project is to evaluate the performance of refrigerator with suction line heat exchanger of 35cm length by using R-134a as refrigerant. In the proposed system with suction line heat exchanger the pull down period is found to be less than the pull down period of existing system. The percentage of decrease in pull down period using R-134a is 1.74%. The percentage of increase in COP using R-134a in no load condition is 3.27% and in loaded condition is 3.10%. The percentage of increase in frost collection using R-134a is 9.09%. From the above discussions, it can be concluded that the performance of vapour compression refrigeration system of domestic refrigerator can be increased by using 35cm length of a heat exchanger.
Authors and Affiliations
B. Rajesh Babu, Dr. A. Nagaraju
Keywords
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- EP ID EP23115
- DOI http://doi.org/10.22214/ijraset.2017.2026
- Views 259
- Downloads 7
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