Under the flow refers to
the volume a medium (eg, air),
that within a unit time (such as one hour)
through an opening (seen as a cross cutting width * height)
through an opening (seen as a cross cutting width * height)
moves.
Volume flow is measured in the following units
See more room tips
m 3 /h cubic meters per hour
m 3 /s cubic meters second
cfm cubic feet per minute
l / s liters per second.
Why do we care about the amount of air that is moved?
For example, because there is a requirement in some countries that 0.4 to 0.6 times per hour in the air to be exchanged offices.
- When welding is for reasons of occupational safety moves air to exhaust pollutants.
- For a correct interpretation of the ventilation systems.
The volume flow rate (ie the amount of air volume) can be calculated based on the required number of air changes per hour for a given space.
as air exchange
It is recommended to replace four to six times per hour, the air in a cheese production.
If the room is 10 meters wide, 10 meters long and 3 meters high, the required air flow rate is at 6 Jump: (10 x 10 x 3) x 6 air changes per hour = 1800 m 3 /h
If the room is 10 meters wide, 10 meters long and 3 meters high, the required air flow rate is at 6 Jump: (10 x 10 x 3) x 6 air changes per hour = 1800 m 3 /h
as air filters
Also for the design of a fan, it is necessary to determine the amount of air to be conveyed.
Flow calculation of an air filter Inlet air velocity times area = volume flow
q = v × A
q = flow of air through air cleaner m 3 /s (flow rate) v = air speed m /s A = inlet area m 2 (length * width)
Flow calculation of an air filter Inlet air velocity times area = volume flow
q = v × A
q = flow of air through air cleaner m 3 /s (flow rate) v = air speed m /s A = inlet area m 2 (length * width)
