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How to Calculate Discharge Pressure From Head

Discharge Pressure Formula:

\[ P = h \times \rho \times g \]

m
kg/m³
m/s²

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1. What is Discharge Pressure?

Discharge pressure is the pressure generated by a fluid column due to its height (head), density, and gravitational acceleration. It represents the pressure from total head in fluid systems.

2. How Does the Calculator Work?

The calculator uses the discharge pressure formula:

\[ P = h \times \rho \times g \]

Where:

Explanation: The equation calculates the pressure exerted by a fluid column based on its height, density, and standard gravity.

3. Importance of Discharge Pressure Calculation

Details: Accurate discharge pressure calculation is crucial for designing pumping systems, pipe networks, hydraulic systems, and ensuring proper fluid transport in various engineering applications.

4. Using the Calculator

Tips: Enter head in meters, density in kg/m³. The gravity constant is fixed at 9.81 m/s². All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between head and pressure?
A: Head and pressure are directly proportional. Higher head results in higher discharge pressure for the same fluid density.

Q2: Why is density important in this calculation?
A: Different fluids have different densities, which significantly affect the pressure generated by the same head height.

Q3: What are typical units for discharge pressure?
A: Pascals (Pa) are the SI unit, but other common units include bar, psi, and kPa depending on the application.

Q4: Can this formula be used for any fluid?
A: Yes, as long as you use the correct density for the specific fluid at the operating temperature.

Q5: How does temperature affect the calculation?
A: Temperature affects fluid density, so use density values corresponding to the operating temperature for accurate results.

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