Heat Content of CNG

  1. Jan 15, 2009 #1
    Working on a radiant heat calculation for CNG exiting a blow down stack (in case it was to flare).

    Part of the calculation requires the heat content of the gas, and I am unsure of what number to use.

    47.8 MJ/kg is the number I am currently using, but I am unsure if this is correct. This number was given as the heat content for CNG (which is what I am considering). However, by the time it is vented, is it not longer considered compressed natural gas?

    Any ideas on what number I should use, and where is a good directory of heat content values?

  2. jcsd
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