An internal gear pump must deliver 18 litres per minute hydraulic fluid to a system at a pressure 22 MPa. The mechanical efficiency of the pump is 89% and the volumetric efficiency is 84%. The pump must be driven at 1650 r/min. Determine the input power to the pump and the displacement volume pump.

An internal gear pump must deliver 18 litres per minute hydraulic fluid to a system at a pressure 22 MPa. The mechanical efficiency of the pump is 89% and the volumetric efficiency is 84%. The pump must be driven at 1650 r/min. Determine the input power to the pump and the displacement volume pump.

Refrigeration and Air Conditioning Technology (MindTap Course List)

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ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

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Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.

Question

An internal gear pump must deliver 18 litres per minute hydraulic fluid to a system at a
pressure 22 MPa. The mechanical efficiency of the pump is 89% and the volumetric efficiency
is 84%. The pump must be driven at 1650 r/min. Determine the input power to the pump and
the displacement volume pump.

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