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Flow Rate Equation:
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The water pump flow rate equation calculates the volumetric flow rate of fluid through a pipe based on the pipe's cross-sectional area and the fluid velocity. It provides a fundamental calculation for hydraulic systems and pump sizing.
The calculator uses the flow rate equation:
Where:
Explanation: The equation calculates the cross-sectional area of the pipe (πD²/4) and multiplies it by the fluid velocity to determine the volumetric flow rate.
Details: Accurate flow rate calculation is crucial for proper pump selection, system design, energy efficiency optimization, and ensuring adequate fluid delivery in hydraulic systems.
Tips: Enter pipe diameter in meters and fluid velocity in meters per second. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is a typical flow rate for residential water pumps?
A: Typical residential water pumps have flow rates between 0.5-2.0 m³/h (0.00014-0.00056 m³/s), depending on the application and pipe size.
Q2: How does pipe diameter affect flow rate?
A: Flow rate increases with the square of the pipe diameter. Doubling the pipe diameter quadruples the flow rate at the same velocity.
Q3: What are typical water velocities in pipes?
A: Typical water velocities range from 0.5-3 m/s, with 1-2 m/s being most common for efficient operation and minimal pressure loss.
Q4: Can this formula be used for other fluids?
A: Yes, this formula works for any incompressible fluid, though the velocity range may vary depending on fluid properties and system requirements.
Q5: How accurate is this calculation for real-world applications?
A: This provides theoretical maximum flow. Actual flow may be lower due to friction losses, pipe roughness, fittings, and pump efficiency factors.