Peter, 1ft. = 0.3048m then 1 cu.ft. = (0.3048m)3 = 0.0283168m3 and 1ft./Sec. also equals 0.3048m/Sec. so then 1cu.ft./Sec. = 0.0283168m3/Sec. so then 1cu.ft./min. = (0.0283168m3/Sec.) x (60Sec./min.) = 1.699008 m3/min. so then 1cu.ft./min. = (1.699008 m3/min.) x (60min./hr.) = 101.94048 m3/hr.
so the formula for CFM to m3/hr. should be 1CFM = 101.94048 m3/hr. and the formula for m3/hr. to CFM would be the reciprocal or 1÷101.94048 = 0.0098096 so 1 m3/hr. = 0.0098096 CFM So to convert m3/hr. to CFM multiply by 0.0098096 And to convert CFM to m3/hr. multiply by 101.94048 You may want to check my math, but as far as I can recall this is how you would do it. The conversion factors of 1ft. = 0.3048m and 1ft./Sec = 0.3048m/Sec. came from a Conversion Factor Chart from an old copy of Connection Technology magazine. Kurt Andrews Compliance Engineer Tracewell Systems, Inc. 567 Enterprise Dr. Westerville, OH 43081 Ph. 614-846-6175 Fax 614-846-7791 Email: [email protected] -----Original Message----- From: [email protected] [SMTP:[email protected]] Sent: Thursday, November 04, 1999 9:55 AM To: [email protected] Subject: Fans; m3/h to CFM Hello There! Anyone knows how to convert m3 (ie meters cube)/hour to CFM? To serve my clients better so they can use alternate dc fans, I usually specify in the UL Reports the use of Recognized fans rated XXX Vdc, max --- A, minimum --- CFM. However, I just looked up a spec sheet for a dc fan and it gives the m3/h rating and not the CFM rating. Can anyone help with this conversion? Thanks in Advance +++++++++++++++++++++++++++++++++++ RTTE Directive Seminar Renaissance Hotel, Tel-Aviv 12th January 2000: CALL FOR DETAILS +++++++++++++++++++++++++++++++++++ Peter Merguerian Managing Director Product Testing Division I.T.L. (Product Testing) Ltd. Hacharoshet 26, POB 211 Or Yehuda 60251, Israel Tel: 972-3-5339022 Fax: 972-3-5339019 e-mail: [email protected] website: http://www.itl.co.il --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
