Centrifugal Compressor Sizing

At some point it is worth talking to a compressor manufacturer to get their input from a potential sales standpoint. This is a big lump of equipment, and specialist advice would be valuable.

My curiosity compels me to ask what such a large compressor and high outlet pressure would be used for.

Typically, centrifugal compressors would require a number of stages to accomplish that compression ratio with any level of efficiently, and it sounds like you are calculating for doing it in one stage. Your outlet temperature suggests a major error in your formulas or calculations as it would be much higher unless you are removing very large amounts of heat energy you haven't explained.

I misread your compression ratio in my previous post.

Sorry for any confusion it may have caused.

Regards,

Greg

You are quite right, the formula at my disposal is applicable to single stage compression.

The disharge temperature from this calculation is above the maximum allowed by specification(180 ^oC).

For sure each barrel will contain a number of internal stages(impeller) without cooling, however i felieve a second external stage will be required