The influence of boundary conditions on the lubrication characteristics of a journal bearing for reciprocating compressors

The performance of a reciprocating compressor in refrigeration and air-conditioning systems is influenced by the lubrication characteristics of the critical sliding components. Improvements in design and performance of reciprocating compressors therefore depend in part upon the lubrication characteristics between the crankshaft and journal bearing. Current studies have explored experimental and theoretical methods, yet difficulties arise when applying these results to practical designs in the field. The present study seeks to enhance the energy efficiency ratio, and to improve the reliability of the reciprocating compressor for refrigeration and air conditioning systems by studying the influence of boundary conditions on the lubrication characteristics between the crankshaft and journal bearing. The results demonstrate that appropriate boundary conditions, when applied to theoretical analysis, improve both the speed and ease of the design process.