Air flow is the movement of air through a specific space or system. It is measured in volume per unit time, typically expressed as cubic feet per minute (CFM).
Pressure drop refers to the decrease in air pressure as it moves through a duct or system. It is affected by factors such as duct size, shape, and air velocity.
As air velocity increases, pressure drop also increases. This is because the air molecules are moving faster and creating more resistance against the walls of the duct, resulting in a decrease in pressure.
The size and shape of a duct can greatly affect air flow and pressure drop. A smaller duct will result in higher air velocity and therefore, a higher pressure drop. Additionally, the shape of the duct can create turbulence and increase pressure drop.
To reduce pressure drop, it is important to choose the right duct size and shape for your system. Additionally, minimizing bends and turns in the duct can also help reduce pressure drop. Regular maintenance and cleaning of the ducts can also improve air flow and decrease pressure drop.