The Software package outlines the details of identifying potential process compressor performance degradation. Based on the data received from the compressor manufacturer or a performance test, the software will generate baseline performance curves that are invariant to compressor suction conditions, rotating speed and gas composition. The generated performance curves will be valid for a clean, undamaged compressor only. Performance of compressor will change over time due to fouling, mechanical deterioration from factors such as erosion, rubbing wear resulting in increased tip clearance, seal damage etc. The software will recalculate the compressor map for current inlet condition including current gas composition utilizing the real gas BWRS equation and monitor any changes in the performance of the process compressor with respect to the base line data. On - line calculation of several key variables will be performed for the compressor. Operator will be notified of any changes in compressor performance as part of advisory information. A trend plot will be provided to show deviations of output, polytropic efficiency, power, and other variables (from base line) over time. Key words: compressor, performance degradation, power, efficiency, polytrophic head, compression ratio, monitoring, prediction, deviation.
