1. What is Water Pump Capacity?

Water pump capacity, or flow rate (Q), is the volume of water that passes through the pump per unit time. It's a critical parameter in designing and selecting pumps for various applications like irrigation, water supply, and industrial processes.

2. How Does the Calculator Work?

The calculator uses the fundamental flow rate equation:

Where:

• \( Q \) — Flow rate (m³/s)
• \( V \) — Velocity of water (m/s)
• \( A \) — Cross-sectional area of pipe (m²)

Explanation: The equation shows that flow rate equals the product of water velocity and the cross-sectional area of the pipe or conduit.

3. Importance of Flow Rate Calculation

Details: Accurate flow rate calculation is essential for proper pump selection, system design, and ensuring adequate water supply for various applications.

4. Using the Calculator

Tips: Enter velocity in meters per second (m/s) and cross-sectional area in square meters (m²). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I measure velocity in a pipe?
A: Velocity can be measured using flow meters or calculated from pressure differentials. For open channels, float methods can be used.

Q2: What are typical flow rates for household water pumps?
A: Household pumps typically range from 0.5 to 5 m³/h (0.00014 to 0.0014 m³/s), depending on the application.

Q3: How does pipe diameter affect flow rate?
A: Larger diameter pipes have greater cross-sectional area, allowing higher flow rates at the same velocity.

Q4: What's the relationship between flow rate and pressure?
A: For a given pump, higher flow rates generally result in lower pressure due to increased friction losses.

Q5: Can this calculator be used for other fluids?
A: The basic equation applies to all incompressible fluids, but viscosity effects may require additional considerations for non-water fluids.