A rough number would be 0.8 CFM / sq ft
Tr = cfm/400
Call a Test and Balance Agency.
"CFM" and "CMH" are rates of flow, typically of air or other gases, used to describe the capacity of an HVAC or air handling system, or of a fan. CFM = cubic feet per minute CMH = cubic meters per hour (1 ft3/min) x (meter/3.28084 feet)3 x (60 min/hour) = 1.7 m3/hour 1 m3/hour = 0.5886 ft3/min
it is an electronic machine for doing calculation
a simulator in science means the calculation
depends on the application, but anywhere from 600 cfm up to 850 cfm is common. Carburetor manufacturers provide a formula for this calculation.
To calculate the horse power of a compressor one would need to use the following calculation. Pump ratio x GPM @ 100 psi = CFM. For a gas compressor divide CFM by 2 and for an electric compressor, divide CFM by 4. GPM is gallons per minute and CFM is air consumption in cubic feet per minute.
That depends on the size of each room and how many registers are in each room. For example. If you have 600 sqft of space you are looking at around 1 ton of needed cooling. For that 1 ton you will need appx 400 cfm total for it to operate properly. If you have 4 registers, that`s 100 apiece. If you have less registers each one will deliver more cfm, more registers less cfm per register.
AFU
Return air vents in each room (none in bath or restrooms) sized for the amount of cfm needed for that specific room are best but if this is not possible then pick a central location and return vent should be sized for total cfm required of house.
To convert cmh to cfm ..... divide cmh by 1.7 to convert into cfm....
Tr = cfm/400
750 CFM
Room rates are calculated by the potential demand and value of the room. Rates are generally higher during peak season and holidays.
5-10 cfm = -5
1tr = 400 cfm
CFM International was created in 1974.