power requirement for pump
Answers
Answer:
5.3 Pumps and Power Requirements
The power required to move water with a pump is called the water horsepower and can be computed by the following equation:
Water horsepower = Flow (gpm) x Total Dynamic Head (ft) / 3960
Brake horsepower is the actual horsepower needed to operate the pump and accounts for inefficiencies in the pump. Brake horsepower can be obtained by dividing water horsepower by the pump efficiency, expressed as a decimal:
Brake horsepower = Water horsepower / Efficiency
Combining these two equations gives a convenient equation for brake horsepower:
Brake horsepower (pump) = Flow (gpm) x Total Dynamic Head (ft) / (3960 x Efficiency)
Note that this does not include power losses within the motor or engine driving the pump.
Answer:
Explanation:
The motor power is the power consumed by the pump motor to turn the pump shaft. The motor power is the sum of the shaft power and power loss due to inefficiencies in converting electric energy into kinetic energy. Motor power may be calculated as the shaft power divided by the motor efficiency