Rotary screw compressors have been successfully applied in the industrial refrigeration industry since the late 1950s. However, one characteristic that has limited their application is that they are fixed-volume ratio compressors. A compressor is designed for one operating compression ratio; if applied at a different ratio, its efficiency will be reduced.
A practical method for varying the volume ratio of a screw compressor during operation has been developed and successfully applied. This advance in screw compressor design eliminates the losses associated with over- or undercompression and provides for reduced energy consumption, particularly on applications with variable operating pressure ratios or on applications requiring a compressor with a volume ratio that is not readily available.
Citation: ASHRAE Transactions, 1985, vol. 91, pt. 1A, Chicago, IL
Product Details
- Published:
- 1985
- Number of Pages:
- 8
- File Size:
- 1 file , 820 KB
- Product Code(s):
- D-CH-85-2876S
