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  • Btu/h to M3

    How to convert Btu/h into Meter Cube (m3)?

    Thanks and regards.

  • #2
    Re: Btu/h to M3

    Assuming your fluid is natural gas and it has 1000 Btu/standard cubic feet (a standard cubic foot referenced at 14.73 psia and 60F), your flow rate would be:

    1 Btu/h * 1 SCF/1000 Btu * 0.0283 (std)M^3 / SCF = 0.0000283 standard cubic meters per hour.

    Please note that the "actual flow" rate is dependant on the pressure and temperature of the gas.
    Last edited by Gary C; 12-15-2010, 12:36 AM.

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    • #3
      Re: Btu/h to SM3

      Thanks for the reply. I was refering to LPG conversion.

      How to convert Btu/h to Sm3/h on LPG? Pressure in the cylinder is about 80 to 100 psi and temperature about 28 to 30 degress celcius.

      My apology for the oversight.

      Regards.

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      • #4
        Re: Btu/h to M3

        Propane has approximately 2520 BTU/standard cubic feet (14.969 psia, 60 F).

        1 Btu/h * 1 SCF/2520 Btu * 0.0283 (std)M^3 / SCF = 0.0000112 standard cubic meters per hour.

        This would be the standard flow rate for burner sizing. If you need to know the actual flow rate (for sizing piping), the standard flow rate needs to be adjusted by the gas law (the higher the pressure, the higher the density of the gas and therefore the actual flow rate will decrease for the same BTU rate). With all of that said, I suspect you are trying to determine the size of LPG tank you will need or determine how often it will need to be refilled. That is a totally different set of equations as the LPG in the tank is in a liquid state. The equations above are for gases.

        Please provide more detail on how you are trying to use the data.

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        • #5
          Re: Btu/h to M3

          How we convert the m3/h into pascal

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          • #6
            Re: Btu/h to M3

            Originally posted by Unregistered View Post
            How we convert the m3/h into pascal
            They are incompatible units, there is no general conversion. The tire on your car holds pressure with no flow at all, and goes flat if the air flows.

            For flow in a pipe, there are formulas for differential pressure (difference between two points in the pipe) vs flow. They depend on length, diameter, surface roughness, velocity of the gas, density, etc.

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