Calculating Pressure Difference Across a Pump

What factors need to be considered when determining the pressure difference across a pump?

Factors Affecting Pressure Difference

Efficiency and Power: The efficiency and power of the pump play a crucial role in determining the pressure difference. In this scenario, the pump has a power of 5 kW and an efficiency of 80%, which affects how effectively the pump can raise the water to a higher elevation. Elevation Difference: The elevation difference between the pump inlet and outlet contributes significantly to the pressure difference. As the water is pumped to a higher elevation, its potential energy increases, leading to a higher pressure at the outlet. Pipe Diameter: The diameter of the pipe on both the intake and discharge sides affects the fluid velocity and, subsequently, the pressure difference. A larger diameter on the intake side (7 cm) compared to the discharge side (5 cm) influences the velocity of the water through the pump. By considering these factors, the pressure difference across the pump can be accurately calculated using the provided equation.

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