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Question on thermodynamics

Former Community Member
Former Community Member
Hello everyone, I have a question on the energy cost of compressing gas.

I didn't find a community about thermodynamics, so I post the question here..


When gas absorbs heat. its volume increases from v1 to v2. When we compress the volume of the same gas from v2 to v1, does the energy required equal to the heat it absorbs? Does the temperature affect the energy required?


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  • 0 in reply to Chris Pearson
    It sounds like you are running a sub-critical two phase refrigeration cycle. This is similar to your domestic refrigerator. If you look up refrigeration cycle on Wikepedia it will give you the details and the normal performance measure COP (coefficient of performance), more detail in Cengel and Boles Chapter 10.

    Lynton.
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