Recent content by whatmough

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    How is Efficiency of Heat Exchangers (HRV) determined

    Thanks a lot Aleph you answered my question, that wiki was helpful.
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    How is Efficiency of Heat Exchangers (HRV) determined

    I've be looking at the specs for Heat Recovery Ventilators (HRV). They commonly state that they can recover 85% of the heat. How is that possible? To me you could only every recover 50% in a perfect situation because of the equal volume of airflow's. Won't the air temperatures just stop at...
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    Calculating Heat Required for Compressed Gas to Become a Gas Again

    Thanks I have read a bit but am still stuck... Where do I start? I want to see how much freon needs to change state from liquid to gas to absorb about 22kJ of energy...
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    Calculating Heat Required for Compressed Gas to Become a Gas Again

    I don't know what to research or where to start but I would like to know much energy a compressed gas a requires to turn back into a gas if it is a liquid. Is there a term I should research and a formula like with specific heat? The problem I am trying to solve is how much heat does X...
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