The relationship between cubic feet per minute or cfm and cubic meter per hour or cmh is that there are approximately 0.59 cfm in 1 cmh. Similarly, 1 cfm is equal to approximately 1.7 cmh.
To calculate sensible heat, you can use the formula: Sensible Heat (BTU/hr) = 1.08 x CFM x Temperature Difference (°F). Just multiply the CFM value by 1.08 and then by the temperature difference in Fahrenheit to get the sensible heat in BTU per hour.
CFH stands for cubic feet per hour and is a measure of volume flow rate, commonly used for gas flow. CFM stands for cubic feet per minute and is also a measure of volume flow rate, frequently used for airflow in ventilation systems. The main difference is the unit of time they are measured in - CFH is per hour while CFM is per minute.
CFM (cubic feet per minute) is not directly related to horsepower unless a pressure is given with the CFM number. A 1 HP pump might only generate 2.5 CFM at 100 PSI, for example. That same 1 HP can push hundreds of CFM at standard air pressure (a large fan, for example).
To calculate CFM (cubic feet per minute) using a manometer, measure the pressure difference across a restriction in the airflow system. Use the manometer reading and the area of the restriction to determine the velocity pressure. Then, use the velocity pressure to calculate the airflow in CFM using the formula CFM = (Velocity Pressure * Area of the Restriction) / 4005.
GM never published an exact specification for these carbs. General thought is the flowed between 700 and 800 cfm.
To convert cmh to cfm ..... divide cmh by 1.7 to convert into cfm....
Tr = cfm/400
750 CFM
CFM is a way of saying ft3/min, or cubi feet per minute. It is a measure of the volume of air a fan can move in a minute. Generally speaking, the higher the CFM, the more powerful a fan it is. Or, if you happen to be in the aircraft industry, CFM refers to the company CFM International, a 50-50 joint venture between General Electric of the United States and Snecma in France.
864 cfm (cubic feet per minute) represents air flow in terms of volume of air measured in cubic feet, whereas 864 cmh (cubic meters per hour) is air flow measured in cubic meters over an hour. The conversion factor from cfm to cmh is approximately 1 cfm = 1.7 cmh, so 864 cfm would have more air flow than 864 cmh due to the difference in volume units.
5-10 cfm = -5