What is the pressure increase over one stage of a centrifugal compressor?
- 5:1
- 1.2:1
- 8:1
Explanation
A single stage of a centrifugal compressor can achieve a relatively high pressure ratio, of the order of about 5:1, because the impeller adds energy by both centrifugal action and diffusion. This is far higher than the roughly 1.1-1.3:1 obtained per axial stage, so the small per-stage and large multi-stage values are incorrect here.
Crystal asking:
I think the answer is 8:1 because Jeppesen Gas Turbine Powerplant quotes the latest modern centrifugal compressor as having a pressure ratio of 10:1
Community Comments (1)
A
ademceven Posts: 8 19.02.2020 / 12:01
i dont know about your claim but its an unique situation and doesnt bind the common knowledge, most centrifugal compressors on the last decade was built around 5 to 1 ratio for single stage and around 8 to 1 ratio for dual stage centrfugal comps. for example axial compressors described as 1,2 or 1,3 but in some extraordinary examples there are some 1,5to1 ratios they built
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