Volumetric Efficiency of Pump or Fan Calculator

Volumetric efficiency (ηv) defines the ratio of fluid delivered by a piston pump per stroke to the displacement volume of the piston. It can be increased to above 100 percentage for improved performance. Volume Flow out of Pump and Leakage Volume Flow are the parameters involved in calculating volumetric efficiency. This online volumetric efficiency of pump or fan calculator will help you to calculate the ηv of a pump or fan in all standard units.

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Volumetric efficiency (ηv) defines the ratio of fluid delivered by a piston pump per stroke to the displacement volume of the piston. It can be increased to above 100 percentage for improved performance. Volume Flow out of Pump and Leakage Volume Flow are the parameters involved in calculating volumetric efficiency. This online volumetric efficiency of pump or fan calculator will help you to calculate the ηv of a pump or fan in all standard units.

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Formula:

ηv = q / (q + ql) Where, ηv = Volumetric Efficiency of Pump or Fan q = Volume Flow out of Pump ql = Leakage Volume Flow

Example:

Consider Volume Flow out of Pump(q) as 9 ml and Leakage Volume Flow (ql) as 9ml.

Solution:

ηv = q / (q + ql)
Then, volumetric efficiency of Pump or Fan(ηv) is 0.5


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