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Selection of Screw Compressors for Energy Efficient Operation

Summary

This paper discusses the unique characteristics of screw compressors and criteria for selection to yield energy
efficient operation when integrated into a built-up industrial refrigeration system. The paper begins with a brief overview of screw compressor technologies, methods of capacity control, and volume ratio concepts. Then, energy
efficiency aspects of screw compressor technologies are discussed for both fixed and variable volume ratio
configurations. Finally, guidelines for screw compressor selection are outlined.