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Can the pressure of liquid air/gas can be increased?

  1. Sep 17, 2016 #1
    I want to know whether like liquid water or other liquids available at normal temperature and pressure, can the pressure of liquid air/gas be increased mechanically? If yes, then what kind of machinery can do the job? I am asking the question here not on the theoretical part, but on the practical aspect.
     
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  3. Sep 17, 2016 #2

    billy_joule

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  4. Sep 20, 2016 #3

    Mech_Engineer

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    Options are to increase the mass of fluid within a fixed container, or to decrease the size of a container with a fixed mass of fluid. Either would increase the pressure of the fluid.

    Practically speaking, this means you can either:
    • Pump the fluid into a fixed volume container, the more fluid you pump in the higher the pressure (requires a high-static-pressure pump). This might be the more common method because it can support continuous flow.
    • Compress the fluid in a container which can change size, like for example a piston-cylinder combination.
     
  5. Sep 20, 2016 #4
    I can understand the principle. But, problem is what kind of machinery can perform at such low temperature.
     
  6. Sep 20, 2016 #5

    Mech_Engineer

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  7. Sep 20, 2016 #6

    russ_watters

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    What low temperature? Liquid water is not a very low temperature.
     
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