The formula to calculate the louver free area is:
\[ \text{LFR} = \left(\frac{\text{TOLA}}{\text{WOA}}\right) \times 100 \]
Where:
The free area of a louver is the clear space that exists between louvers when fully open. It can be used as an air passage for fresh air and daylighting, and in some cases, to control solar gain. The larger the free area, the greater the energy savings potential and the more cooling and ventilation capacity available.
Let's consider an example:
Using the formula to calculate the louver free area:
\[ \text{LFR} = \left(\frac{50}{100}\right) \times 100 = 50 \% \]
This means that the louver free area for this scenario is 50%.
