Multistage Compressor: Power Distribution

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SUMMARY

The discussion focuses on the operation of multistage compressors, specifically the assumption of equal power distribution across stages in an isentropic process without interstage temperature increases. It emphasizes that each stage should be designed for maximum efficiency, impacting the overall performance. The inquiry also addresses the calculation of intermediate pressure P2, which is crucial for maximizing the efficiency of the entire compression process, defined as the product of all stage efficiencies.

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gfd43tg
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Hello,

When using a multistage compressor that is assumed to be isentropic with no interstage temperature increases, is it assumed each stage does the same amount of power?
 
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Each stage increases the pressure while decreasing the volume and should be designed for maximum efficiency.
For an inlet pressure P1 and an outlet pressure P3, can you find the intermediate pressure P2 that would maximise the efficiency of the whole process = product of all stage efficiencies.
 

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