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Performance Analysis of Electronic Expansion Valve in 1 TR Window Air Conditioner using Various Refrigerants


Journal: International Journal of Engineering Science and Technology
ISSN 0975-5462

Volume: 2;
Issue: 9;
Start page: 4020;
Date: 2010;
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Keywords: Window air conditioner | Coefficients of Performance | Thermostatic Expansion Valve | Electronic Expansion Valve | Tonne of Refrigeration

A window air conditioner of 3.5 K.W capacity fitted with expansion devices such as capillary tube, thermostatic expansion valve and Electronic expansion valve was tested for its coefficient of performance, power required and refrigeration effect with respect to the refrigerants R22 and R407C under different operating conditions .Initially evaporator temperature was maintained at 279 K and condenser temperature was varied and then the test was conducted again in the same window air conditioner with electronic expansion valve alone as expansion device and by varying the refrigerant super heat temperature at inlet to the compressor from 273K to 293K for the refrigerants R 22, R 407C and R 290 The performance of electronic expansion valve with eco friendly refrigerants shows a positive effect and enable the industry to favorably displace the R22 and other types of expansion devices.
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