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Tuesday, February 3, 2009

Fresh Air Exchange Flow Rate Conversion. (Update)























































I'm guessing;
Cmh = cubic meters per hour
cfm = cubic feet per minute
m3/hr * 35.3ft3/m3 * hr/60minutes = ft3/minute
1 cmh = 0.5883 cfm
sample

19 cmh x 0.5883 = 11.1777 cfm
answer = 11 cfm
formula to convert cmh to cfm

1 cbm = 1.6990108
sample
30 cfm x 1.6990108 = 50.070324 cbm/cmh
answer = 50 cbm or cmh
formula to convert cfm to cbm/cmh