Louver Free Area Calculator

Enter the values to use our basic and advance Louver Free Area Calculator. Furthermore, read the formulas and examples to know better how this calculator works.

Enter any 2 values to calculate the missing variable

Total Louver Area (sq units) Wall Opening Area (sq units) Louver Free Area (%)

Looking to calculate Louver Free Area for your design? Here you go, use our Louver Free Area calculator to assess and design accurate louvers in constructions for wonderful space breathe!. Whether you are looking for louver free calculation square feet, cfm, velocity or ruskin louver free etc, this tool is the must have.

Formula:

Contents

1 Formula:
2 Solved Examples :
3 What is Louver Free Area Calculator ?
4 Final Words:

The formula is:

$\text{LFR} = \frac{\text{TOLA}}{\text{WOA}} \times 100$

Variables

Variable	Meaning
LFR	Louver Free Area Ratio (as a percentage)
TOLA	Total Open Louver Area (the area of the louver that is open for air passage)
WOA	Wall Opening Area (the total area of the wall opening where the louver is installed)

Solved Examples :

Example 1:

Given:

Total Open Louver Area ( $\$ = 200 square inches
Wall Opening Area ( $\text{WOA}$ = 400 square inches

Calculation	Instructions
Step 1: LFR = $\frac{\text{TOLA}}{\text{WOA}} \times 100$	Start with the formula.
Step 2: LFR = $\frac{200}{400} \times 100$	Replace $\text{TOLA}$ with 200 and $\text{WO$ with 400.
Step 3: LFR = $0.5 \times 100$	Divide 200 by 400 to get 0.5.
Step 4: LFR = 50%	Multiply by 100 to convert to a percentage.

Answer: The Louver Free Area Ratio is 50%.

Example 2:

Given:

Total Open Louver Area ( $\text{TOLA}$ ) = 300 square inches
Wall Opening Area ( $\text{WOA}$ ) = 600 square inches

Calculation	Instructions
Step 1: LFR = $\frac{\text{TOLA}}{\text{WOA}} \times 100$	Start with the formula.
Step 2: LFR = $\frac{300}{600} \times 100$	Replace $\text{TOLA}$ with 300 and $\text{WOA}$ with 600.
Step 3: LFR = $0.5 \times 100$	Divide 300 by 600 to get 0.5.
Step 4: LFR = 50%	Multiply by 100 to convert to a percentage.

What is Louver Free Area Calculator ?

The Louver Free Area Calculator is basically used measure or know the percentage of open area in a louver compared to the total area of the wall opening. Louvers are often used in HVAC systems, ventilation, and architectural design to allow airflow while providing protection against elements like rain or debris.

The formula $\text{LFR} = \frac{\text{TOLA}}{\text{WOA}} \times 100$ calculates the free area ratio by comparing the open area of the louver to the total wall opening area, then multiplying by 100 to express the result as a percentage. This ratio is important for ensuring adequate airflow and proper ventilation in a space.

Final Words:

Therefore, in order to ensure the smooth and proper flow of air in designs the louver free area calculation are essential. By accurately knowing the needed louver, the engineers are able to design and construct the well ventilated places.