Do you want to determine the percentage of free area in a louver system? This calculator can simplifies the calculation process. Simply enter the input the total louver area and wall opening area into the calculator to find louver free area.
Louver Free Area Calculator
What is Louver Free Area?
Louver free area is the part of the louver through which air can pass, excluding obstructions like blades and frames. This is crucial for proper ventilation in HVAC systems.
Tool Guide Info
Using the Louver Free Area Calculator is straightforward:
1. Basic Calculator:
Input any two of these values:
- Total Louver Area (TOLA) in square units
- Wall Opening Area (WOA) in square units
- Louver Free Area (LFR) in percentage
The calculator will compute the louver free area.
2. Advanced Calculator:
For more complex calculations involving multiple louver areas:
Enter:
- Total Louver Area 1 (TOLA1) in square units
- Total Louver Area 2 (TOLA2) in square units
- Combined Wall Opening Area (WOA) in square units
The calculator will provide the combined Louver Free Area.
Calculation Formula
The formula used in the Louver Free Area Calculator is:
| LFR | is the louver free area (%) |
| TOLA | is the total open area of the louver after subtracting obstructions, blades, and frames (sq units) |
| WOA | is the wall opening area (sq units) |
Example Calculations
Here are examples demonstrating how the calculator computes values:
1. Basic Calculation Example:
| Input | Value |
|---|---|
| TOLA (sq ft) | 25 |
| WOA (sq ft) | 50 |
| LFR (%) | ? |
Calculation:
2. Advanced Calculation Example:
| Input | Value |
|---|---|
| TOLA1 (sq ft) | 15 |
| TOLA2 (sq ft) | 10 |
| Combined WOA (sq ft) | 50 |
| Combined LFR (%) | ? |
Calculation:
Louver Free Area Chart
| Louver Size (inches) | Free Area Percentage | Free Area (sq ft) | Notes |
|---|---|---|---|
| 12″ x 12″ | 45% | 0.45 | Smaller louvers have more frame obstruction. |
| 24″ x 24″ | 50% | 2.00 | Common for residential or smaller commercial applications. |
| 36″ x 36″ | 55% | 5.94 | Mid-sized louver with more airflow capacity. |
| 48″ x 48″ | 60% | 11.52 | Commonly used in large commercial applications. |
| 60″ x 60″ | 65% | 19.50 | Larger louver, better suited for high ventilation needs. |
FAQs
Why should I know about the Louver Free Area?
It enables effective airflow and ventilation in HVAC systems.
Can the calculator accommodate more than one louver?
Yes, use the advanced calculator for multiple louver areas.
What units should I use for the input values?
Ensure all input quantities are in consistent units, like square feet or square meter.
I hope you found the louver free are calculator, a best tool for your project. It is a useful tool for HVAC professionals and builders. Please feel free to ask any question regarding this tool.