A centrifugal pump running at 750r.p.m. discharges water 0. 1m /s against a head of 10 m at its best efficiency. A second pump of the same homologous series, when working at 500r.p.m., is to deliver water at 0.05m³/s at its best efficiency. What will be the design head of the second pump and what is the scale at ratio between the first and the second?

A centrifugal pump running at 750r.p.m. discharges water 0. 1m /s against a head of 10 m at its best efficiency. A second pump of the same homologous series, when working at 500r.p.m., is to deliver water at 0.05m³/s at its best efficiency. What will be the design head of the second pump and what is the scale at ratio between the first and the second?

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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