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  1. #1
    Join Date
    Jan 2013
    Location
    Western Ky
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    Heat of extraction formula

    What formula do you use? Is delta t of water x gpm x 500 for water (pump and dump) aka open loop correct ? If so how do you get your gpm? Is the flow restrictor size good enough or ?.

  2. #2
    Join Date
    Oct 2010
    Location
    Anderson, South Carolina, United States
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    16,554
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    For pump and dump I use a 5 gallon bucket and a stopwatch.

  3. #3
    Join Date
    Jan 2013
    Location
    Western Ky
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    Thread Starter
    Sounds interesting lol

  4. #4
    Join Date
    Jan 2006
    Location
    Harrisburg PA
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    measure entering water pressure before it enters the unit (PT port) and pressure exiting the unit (PT port). Every manufacturer ive seen has a chart in the product specs that will show you the gpm at a measured pressure drop at a certain temperature. Pretty easy when you see the chart ....make sure its for the right size unit. That same chart will give you your heat of rejection/ extraction

  5. #5
    Join Date
    Jan 2013
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    Western Ky
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    Thread Starter
    Thanks

  6. #6
    Join Date
    Feb 2015
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  7. #7
    Join Date
    Jan 2013
    Location
    Western Ky
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    Thread Starter
    Awesome download thanks

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