PERFORMANCE IMPROVEMENT OF R134a REFRIGERATOR COMPRESSOR

摘要

It will bring about many problems for a R12 refrigerator compressor to use R134a as refrigerant directly, such as power increasing, capacity dropping, and noise rising up etc. In order to solve these problems, the mathematical model, optimization model and special test system were built up, many improvements were made by means of the calculating and the testing results. Finally, the performance of R134a refrigerator compressor is greatly improved, much higher than that of the original compressor. Long time operation indicates that the sample compressor works well.