Announcement

Announcement Module
Collapse
No announcement yet.

meters per second to CFM

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts

  • meters per second to CFM

    I need to convert an air flow rate from meters per second to cubic feet per minute. I have looke on numerous sites to no avail, would love to have some help on this one.

    Thanks
    JR

  • #2
    Re: meters per second to CFM

    meters/second * cross-sectional area of pipe = cubic meters/second
    cubic meters/second * 2118.88 = cubic feet/minute

    So you just need to calculate the cross area of the pipe the air flows through, in square meters.

    Comment


    • #3
      Re: meters per second to CFM

      [QUOTE=Unregistered;19315]I need to convert an air flow rate from meters per second to cubic feet per minute. we cross area of 14'' X 15'' in squre. I have looke on numerous sites to no avail, would love to have some help on this one.

      Thanks
      M.Murtaza

      Comment


      • #4
        Re: meters per second to CFM

        [QUOTE=Unregistered;71048]
        Originally posted by Unregistered View Post
        I need to convert an air flow rate from meters per second to cubic feet per minute. we cross area of 14'' X 15'' in squre. I have looke on numerous sites to no avail, would love to have some help on this one.

        Thanks
        M.Murtaza
        1 m/s x 1 ft/0.3048 m x 60 s/1 min = 197 ft/min

        14 " x 15" x 1 ft/144 in = 1.46 ft

        1.46 ft x 197 ft/min = 288 ft/min

        Comment


        • #5
          Re: meters per second to CFM

          I need to convert an air flow rate from meters per second to cubic feet per minute. we have outlet area of 12'' X 14'' in squre and other 10''x9'' in squre. I have looke on numerous sites to no avail, would love to have some help on this one.

          Thanks
          Mohammad Murtaza

          Comment


          • #6
            Re: meters per second to CFM

            I need to convert an air flow rate from meters per second to cubic feet per minute. we have air flow 16 m/s at outlet area of 12'' X 14'' in squre and other Air flow 18 m/s at out let area of 10''x9'' in squre. I have looke on numerous sites to no avail, would love to have some help on this one.

            Thanks
            Mohammad Murtaza

            Comment


            • #7
              Re: meters per second to CFM

              Originally posted by mohammad murtaza View Post
              I need to convert an air flow rate from meters per second to cubic feet per minute. we have air flow 16 m/s at outlet area of 12'' X 14'' in squre and other Air flow 18 m/s at out let area of 10''x9'' in squre. I have looke on numerous sites to no avail, would love to have some help on this one.

              Thanks
              Mohammad Murtaza
              Just follow the example in post #4, using your numbers. Convert the velocity to ft/min. Determine the duct area in ft. Multiply. Done.

              Comment


              • #8
                Re: meters per second to CFM

                Originally posted by Robert Fogt View Post
                meters/second * cross-sectional area of pipe = cubic meters/second
                cubic meters/second * 2118.88 = cubic feet/minute

                So you just need to calculate the cross area of the pipe the air flows through, in square meters.
                actually that formula is incorrect the correct formula for m/sec to cfm would be:

                cfm = m/sec * cross-sectional area of pipe * 60 * 3.28 (60*3.28 = 196.8 for a short cut) 60 for the time time conversion and 3.28 to convert meters to feet. i have no idea where you came up with 2118.8

                Comment


                • #9
                  Re: meters per second to CFM

                  Originally posted by Unregistered View Post
                  actually that formula is incorrect the correct formula for m/sec to cfm would be:

                  cfm = m/sec * cross-sectional area of pipe * 60 * 3.28 (60*3.28 = 196.8 for a short cut) 60 for the time time conversion and 3.28 to convert meters to feet. i have no idea where you came up with 2118.8
                  Please read the formula more carefully. It assumes you have flow in cubic meters per second. You must multiply by (1 ft/0.3048 m) x 60 s/min.
                  With reasonable rounding, that is 2118.88 (to nine significant figures).

                  If the cross sectional area of the pipe is in square meters you have cubic meters. If it is in feet or inches, you have a mixed unit mess. It is critical to keep all the units attached and work out the units math symbolically.

                  Comment


                  • #10
                    Re: 0.8 meters per second to CFM

                    0.8 meters per second to CFM

                    Comment


                    • #11
                      Re: 0.8 meters per second to CFM

                      Originally posted by santosh View Post
                      0.8 meters per second to CFM
                      Depends on the area of the duct, not given.

                      Comment


                      • #12
                        Re: CFM TO M/S

                        Hi i am looking to convert 1000 cfm to Mtrs/sec...can any one help

                        Comment


                        • #13
                          Re: CFM TO M/S

                          Originally posted by Unregistered View Post
                          Hi i am looking to convert 1000 cfm to Mtrs/sec...can any one help
                          1000 ft/min x 1 min/60 s x (0.3048 m/1 ft) = 0.4719 m/s

                          If you are trying to convert to a velocity, it has to be uniform across a cross-section, and you have to divide by the cross-sectional area (in square meters).

                          Comment


                          • #14
                            Re: meters per second to CFM

                            3.50 m/s convert to cfm .square duct 24"*8" pls help

                            Comment


                            • #15
                              Re: meters per second to CFM

                              Is it m/s x dia ➗ 3.142 to get m3h??

                              Comment

                              Working...
                              X