AN EXPERIMENTAL STUDY ON A VAPOR COMPRESSION REFRIGERATION CYCLE BY ADDING INTERNAL HEAT EXCHANGER

Abstract

Thispaper presents practical study to improve the indication COP of a vaporcompression refrigeration cycle in instrumented automobile air conditioner bydesigning internal heat exchanger and installing it in the vapor compressionrefrigeration cycle. Two cases of vapor compression refrigeration cycle were takenin this paper: the first case is thatthe vapor compression refrigeration cycle without internal heat exchanger andin the second case the vapor compressionrefrigeration cycle with heat exchanger ; in these two cases, the temperatureat each point of a vapor compressionrefrigeration cycle, the low and the high pressure ,the indoor temperature andthe outdoor temperature were measured at each time at compressor speed 1450 rpmand 2900 rpm for each blower speed 1, blower speed 2 and blower speed 3.Therefrigerant fluid was used in the vapor compression refrigeration cycle withoutIHE and with IHE is R134a..

Keywords

• Internal Heat Exchanger, R134a, vapor Compression Refrigeration Cycle.