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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 pump or pipe system. It is based on the fundamental principle that flow rate equals cross-sectional area multiplied by flow velocity.
The calculator uses the flow rate equation:
Where:
Explanation: This equation represents the volume of fluid passing through a given cross-section per unit time, which is essential for pump sizing and system design.
Details: Accurate flow rate calculation is crucial for proper pump selection, system efficiency optimization, energy consumption analysis, and ensuring adequate fluid delivery for various applications.
Tips: Enter cross-sectional area in square meters (m²) and flow velocity in meters per second (m/s). Both values must be positive numbers greater than zero.
Q1: What units should I use for the inputs?
A: Use square meters (m²) for area and meters per second (m/s) for velocity to get flow rate in cubic meters per second (m³/s).
Q2: Can I use different units?
A: Yes, but you'll need to convert the result accordingly. The calculator assumes consistent metric units.
Q3: What is a typical flow rate for residential water pumps?
A: Residential water pumps typically have flow rates between 0.5-5 m³/h (0.00014-0.00139 m³/s), depending on the application.
Q4: How does pipe diameter affect flow rate?
A: Larger pipe diameters increase cross-sectional area, which can significantly increase flow rate at the same velocity, or maintain flow rate at lower velocities with reduced friction losses.
Q5: When is this equation not applicable?
A: This basic equation assumes uniform flow and constant velocity across the cross-section. It may need modification for compressible fluids, non-Newtonian fluids, or complex flow conditions.