Practical Method for Analysis and Estimation of Reciprocating Hermetic Compressor Performance

This paper presents a simplified analysis method for the estimation of reciprocating hermetic compressor performance. Conventionally, the analysis method with indicator diagram is utilized for this purpose. This diagram is generally obtained by measuring pressure changes jn a cylinder, a suction chamber and a discharge chamber with pressure sensors. This new method has been developed, where only average pressures and temperatures at 4 positions are experimentally required. Cylinder pressure change can be calculated by computer simulation. Utilizing these results, compressor performance can be more rapidly analyzed and estimated than with the conventional method. This new method is compared with the conventional method in several examples.