1. What is the Static Power Formula?

The Static Power Formula calculates the power required for a centrifugal pump to overcome static head, based on the specific weight of the fluid, actual discharge rate, and static head of the pump.

2. How Does the Calculator Work?

The calculator uses the Static Power formula:

Where:

• \( P \) — Static Power of Centrifugal Pump (kW)
• \( w \) — Specific Weight of Fluid in Pump (N/m³)
• \( Q \) — Actual Discharge at Centrifugal Pump Outlet (m³/s)
• \( H_{st} \) — Static Head of Centrifugal Pump (m)

Explanation: The formula calculates the power required to pump fluid against the static head, accounting for the fluid's specific weight and the discharge rate.

3. Importance of Static Power Calculation

Details: Accurate static power calculation is crucial for pump selection, energy efficiency analysis, and proper system design in fluid transport applications.

4. Using the Calculator

Tips: Enter specific weight in N/m³, discharge rate in m³/s, and static head in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is specific weight of fluid?
A: Specific weight is the weight per unit volume of a fluid, typically measured in N/m³. It equals density multiplied by gravitational acceleration.

Q2: How is static head different from total head?
A: Static head is the vertical height difference between suction and discharge points, while total head includes friction losses and velocity head.

Q3: Why divide by 1000 in the formula?
A: The division by 1000 converts the result from watts to kilowatts for more convenient power units.

Q4: What are typical values for specific weight?
A: Water at 4°C has a specific weight of approximately 9810 N/m³. Other fluids vary based on their density.

Q5: When is this calculation most applicable?
A: This calculation is most accurate for systems where friction losses are negligible compared to the static head component.