INTRODUCTION

The function of compressor is to compress the gases and vapours from low pressure to high pressure. According to second law of thermodynamics this is only possible when work is done on the system, i.e., on the gas or vapour. Compressors have wide industrial and domestic applications such as compression of refrigerants in refrigerators and air conditioning plants, compression of air to fill the air in wheel of automobiles, use of compressed fluids in non-conventional machining processes, etc.