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A pump delivers 1500 L/min of water at 20°C against apressure rise of 270 kPa. Kinetic and potential energychanges are negligible. If the driving motor supplies 9 kW,what is the overall efficiency?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

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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Concept explainers

Forms of Energy

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

A pump delivers 1500 L/min of water at 20°C against a
pressure rise of 270 kPa. Kinetic and potential energy
changes are negligible. If the driving motor supplies 9 kW,
what is the overall efficiency?

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