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1 SCFH = How much Nm3/hr.

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  • 1 SCFH = How much Nm3/hr.

    1 SCFH = How much Nm3/hr. Pls. let me know.

  • #2
    Re: 1 SCFH = How much Nm3/hr.

    Originally posted by HR3@sanmargroup.com
    1 SCFH = How much Nm3/hr. Pls. let me know.
    Well, it is easy and hard:
    1 ft = 0.028 316 8466 m
    N != S

    "Normal" in Nm implies conditions of 273.15 K (0 C) and 101.325 kPa. "Standard" in SCFH implies some standard temperature and the same pressure. Problem is, different industries use 15 C, 60 F, 20 C, 75F, 25 C, and possibly others. Unless you know which standard temperature, SCFM is basically meaningless. If you find the temperature, convert to volume at 0 C using Ideal Gas Law first, then convert to m.

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    • #3
      Re: 1 SCFH = How much Nm3/hr.

      Originally posted by HR3@sanmargroup.com View Post
      1 SCFH = How much Nm3/hr. Pls. let me know.
      1scfm - 1.699 Nm3/Hr
      1SCFH = 0.02832 Nm3/Hr

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      • #4
        Re: 1 SCFH = How much Nm3/hr.

        Originally posted by JohnS View Post
        Well, it is easy and hard:
        1 ft = 0.028 316 8466 m
        N != S

        "Normal" in Nm implies conditions of 273.15 K (0 C) and 101.325 kPa. "Standard" in SCFH implies some standard temperature and the same pressure. Problem is, different industries use 15 C, 60 F, 20 C, 75F, 25 C, and possibly others. Unless you know which standard temperature, SCFM is basically meaningless. If you find the temperature, convert to volume at 0 C using Ideal Gas Law first, then convert to m.
        This is a problem in the industry to be honest.

        I've worked on technical documents that mention "standard" but didn't mention the basis for the standard.

        Depending on which industry you're dealing with, the temperature can differ as mentioned above.

        So you must know which temperature the standard is based on. You can assume, but you may get a different answer than what you're looking for. This is very crucial especially if you're selling gases to consumers.

        If you can get hold of the mass flow, then I think it's easier to work on it to get the corresponding volume flow.

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        • #5
          1000 scmh = howmuch kg/hr

          media -natural gas
          flow - 1000scmh
          temp --ambient
          final output of heter =60deg C
          I have to convert mass flow
          1000 scmh = howmuch kg/hr

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          • #6
            Re: 1 SCFH = How much Nm3/hr.

            1000 scfh = how much kg?cm2

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            • #7
              Re: convert scfh to ppm

              If a valve is leaking 0.5 scfh, can we determine how many parts per million the leak is?

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              • #8
                2.7 MMSCFH = How much Sm3/hr.

                2.7 MMSCFH = How much sm3/hr. Pls. let me know.[/QUOTE]

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                • #9
                  Re: 2.7 MMSCFH = How much Sm3/hr.

                  Originally posted by Unregistered View Post
                  2.7 MMSCFH = How much sm3/hr. Pls. let me know.
                  [/QUOTE]

                  At the same temperature and pressure
                  2.7 x 10^6 scfh x 0.028 316 8466 m/ft = 76455.5 m/h

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                  • #10
                    Re: convert scfh to ppm

                    Originally posted by Unregistered View Post
                    If a valve is leaking 0.5 scfh, can we determine how many parts per million the leak is?
                    Dear Sir,

                    1 PPM = 0.0001%
                    1000PPM = 1%

                    So now you have to mention your total flow of Valve so that we will easily decide for leakage.
                    percentage.

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                    • #11
                      Re: 1 SCFH = How much Nm3/hr.

                      what means Nm3?

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                      • #12
                        Re: 1 SCFH = How much Nm3/hr.

                        Originally posted by Unregistered View Post
                        what means Nm3?
                        "Normal" meters cubed. The actual pressure and temperature of the gas have been ignored and the volume calculated at "normal" conditions, usually 101.325 kPa, 0 C (273.15 K). Unfortunately, there are several "normals" and "standards" in use in different industries so it is a good idea to check the reference conditions a particular industry uses (in other words, it means NOTHING, unless you know what pressure and temperature they are talking about).

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                        • #13
                          Re: 1 SCFH = How much Nm3/hr.

                          ppm is a concentration whereas scfm is a flowrate. Thus, it is like comparing applles and, not even oranges, but rocks. The simple answer is that you cannot convert flowrate to concentration.

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                          • #14
                            Re: 1 SCFH = How much Nm3/hr.

                            Hi, can you help me

                            How i can convert 2400 kg/hr to CFM and 6300 kg/hr to CFM, the flow is air.

                            Can you tell me how to make the calcules?

                            Thanks

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                            • #15
                              Re: 1 SCFH = How much Nm3/hr.

                              KINDLY SEND THE CONVERSION TABLE FOR,

                              1 CFM === HOW MANY Nm3/Hr

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