CFM from Differential Pressure Calculator







 

Introduction

When it comes to ensuring optimal airflow in various systems, understanding the Cubic Feet per Minute (CFM) is crucial. CFM measures the volume of air flowing through a space per minute. To calculate CFM from differential pressure, you can use our HTML calculator, which simplifies the process. This article provides a step-by-step guide on how to use this calculator effectively.

How to Use

To use the CFM from Differential Pressure Calculator, follow these steps:

  1. Input the differential pressure (in W.C.).
  2. Enter the cross-sectional area (in square feet).
  3. Click the Calculate CFM button.

The calculator will instantly display the CFM (Cubic Feet per Minute) based on your inputs.

Formula

The formula for calculating CFM from differential pressure is as follows:

CFM = 4005 * √(dP) * A

Where:

  • CFM is the Cubic Feet per Minute.
  • dP is the differential pressure in water column (W.C.).
  • A is the cross-sectional area in square feet.

Example

Let’s say you have a differential pressure of 0.5 W.C. and a cross-sectional area of 20 square feet. Using the formula, you can calculate the CFM as follows:

CFM = 4005 * √(0.5) * 20 ≈ 4005 * 0.707 * 20 ≈ 56594.56 ft³/min

FAQ’s

1. What is differential pressure in terms of airflow?

Differential pressure, often measured in inches or water column (W.C.), represents the pressure difference between two points in a system. In airflow, it helps determine the resistance or restriction to air movement.

2. Why is CFM important?

CFM is essential in HVAC systems, exhaust systems, and many other applications where knowing the amount of air being moved is critical for efficiency and safety.

3. Can I use this calculator for HVAC systems?

Yes, this calculator is suitable for determining the CFM in HVAC systems, provided you have the required inputs.

Conclusion

Calculating CFM from differential pressure is essential for designing and maintaining efficient airflow systems. With our HTML calculator and the provided formula, you can easily determine CFM based on the differential pressure and cross-sectional area. This tool simplifies a complex calculation and ensures you achieve the desired airflow for your application.

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