Evaluation of an experimental refrigerator using R404A by regulating the compressor speed

Abstract

Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010.This study outlines the experimental performance of a refrigeration system working with reciprocating compressor by regulating its speed by means of a frequency inverter using an alternative refrigerant, R404a. Regulating the compressor speed is one of the best methods to vary the capacity of refrigeration system. For this aim, an experimental traditional refrigeration system was built up and a frequency inverter driver mounted on compressor. The experiments were made for determining the system performance also including compressor performance when compared to traditional system that is working at a nominal frequency of SO Hz. The results showed that using variable speed compressor in a refrigeration system affects system performance in terms of thermodynamic aspects.