Volume flow rate is the amount of fluid (in this case, air) that passes through a given point in a specified amount of time. It is typically measured in cubic meters per second (m3/s) or cubic feet per minute (CFM).
Volume flow rate is important in air ducts because it determines the amount of air that can be delivered to a specific space. Proper volume flow rate ensures that the air circulation and air quality are maintained at an optimal level.
Volume flow rate through air ducts is calculated by multiplying the cross-sectional area of the duct by the average air velocity. The formula is Q = A * V, where Q is the volume flow rate, A is the cross-sectional area, and V is the air velocity.
The volume flow rate through air ducts can be affected by various factors such as the size and shape of the duct, the type of material used for the duct, the air temperature and density, and any obstructions or bends in the duct.
Volume flow rate through air ducts can be controlled by adjusting the air velocity, changing the size or shape of the duct, or using dampers or valves to regulate the flow. It is important to ensure that the volume flow rate is within the recommended range for the specific air duct system.