How do I calculate the PV power of GM Helium compressor used for GM type cryocoolers?

12 September 2015 1 405 Report

In GM type pulse tube cryocooler, Helium compressor is generally of non reciprocating type. I would like to know how to calculate the PV power of GM helium compressor?

Aliakbar Boroujerdi

As I know, for any oscillating system, you must simply integrate P*dV/dt over one cycle for all variable volumes and then sum the value of calculated works. The result is net work done by fluid on surroundings. Multiplying it by frequency (in Hz) yields net power or compressor power.

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