The formula to calculate the Duct Leakage (DL) is:
\[ DL = DF \cdot \frac{AL}{100} \]
Where:
Let's say the duct design flow (\( DF \)) is 1000 CFM, and the allowable leakage percent (\( AL \)) is 5%. Using the formula:
\[ DL = 1000 \cdot \frac{5}{100} \]
We get:
\[ DL = 1000 \cdot 0.05 = 50 \text{ CFM} \]
So, the Duct Leakage (\( DL \)) is 50 CFM.
Duct leakage refers to the amount of air that escapes from the duct system in a heating, ventilation, and air conditioning (HVAC) system. It is an important factor in the efficiency and performance of the HVAC system. Calculating duct leakage helps in identifying and addressing inefficiencies, ensuring optimal performance and energy savings.
