The Air Watts to Pa Calculator is designed to convert the air wattage of vacuum cleaners into the unit of pressure, pascal (Pa). This helps users understand the suction power and efficiency of their devices in terms that reflect their actual performance.
Formula of Air Watts To Pa Calculator
The conversion from Air Watts to Pascals involves a few steps. First, understand the measure of Air Watts:
- Air Watts is calculated as the product of airflow in cubic feet per minute (CFM) and pressure in inches of water (inH2O), divided by 8.5.
To convert this to Pascals, follow these steps:
- Pressure in inches of water is converted to pascals using the conversion factor where 1 inch of water equals 249.08891 pascals.
- To find the airflow in cubic meters per second (m^3/s), divide the CFM by 2118.88.
The detailed steps for conversion are:
- Calculate the pressure in pascals from inches of water by multiplying the pressure value in inches of water by 249.08891.
- Convert the airflow from cubic feet per minute to cubic meters per second by dividing by 2118.88.
- Using the Air Watts formula, rearrange it to solve for pressure in pascals.
Air Watts and Pascal Conversion Table
| CFM | Inches of Water (inH2O) | Calculated Air Watts | Pressure in Pascals (Pa) |
|---|---|---|---|
| 50 | 2 | 11.76 | 498.18 |
| 100 | 2 | 23.53 | 498.18 |
| 150 | 2 | 35.29 | 498.18 |
| 50 | 3 | 17.65 | 747.27 |
| 100 | 3 | 35.29 | 747.27 |
| 150 | 3 | 52.94 | 747.27 |
Calculation Method:
- Air Watts is calculate as: (CFM * Inches of Water) / 8.5
- Pressure in Pascals is calculate as: Inches of Water * 249.08891
Example of Air Watts To Pa Calculator
If a vacuum cleaner has an airflow of 100 CFM and a pressure of 2 inH2O, using the Air Watts formula:
- Calculate the pressure in Pascals: 2 inH2O * 249.08891 = 498.17782 Pa
- Calculate the airflow in cubic meters per second: 100 CFM / 2118.88 ≈ 0.0472 m^3/s
- Substitute these values into the Air Watts formula to solve for Air Watts.
Most Common FAQs
A1: Input the CFM and inH2O values specific to each model into the calculator to get the Air Watts and then convert using the steps provided.
A2: While Air Watts is a measure of power, the actual cleaning efficiency also depends on the vacuum design and other factors like filter type.