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A pump operating at steady state receives 1.2 kg/s of liquid water at 50°C, 1.5 MPa. The pressure of the water at the pump exit is 14 MPa. The magnitude of the work required by the pump is 21 kW.Stray heat transfer and changes in kinetic and potential energy are negligible. Determine the work required by a reversible pump operating with the same conditions, in kW, and the isentropic pump efficiency.

A pump operating at steady state receives 1.2 kg/s of liquid water at 50°C, 1.5 MPa. The pressure of the water at the pump exit is 14 MPa. The magnitude of the work required by the pump is 21 kW.Stray heat transfer and changes in kinetic and potential energy are negligible. Determine the work required by a reversible pump operating with the same conditions, in kW, and the isentropic pump efficiency.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A pump operating at steady state receives 1.2 kg/s of liquid water at 50°C, 1.5 MPa. The pressure of the water at the pump exit is 14 MPa. The magnitude of the work required by the pump is 21 kW. Stray heat transfer and changes in kinetic and potential energy are negligible. Determine the work required by a reversible pump operating with the same conditions, in kW, and the isentropic pump efficiency. Step 1 Determine the work required by a reversible pump operating with the same conditions, in kW. W p.rev kW i Save for Later Attempts: 0 of 1 used Submit Answer Step 2 The parts of this question must be completed in order. This part will be available when you complete the part above.
Transcribed Image Text:A pump operating at steady state receives 1.2 kg/s of liquid water at 50°C, 1.5 MPa. The pressure of the water at the pump exit is 14 MPa. The magnitude of the work required by the pump is 21 kW. Stray heat transfer and changes in kinetic and potential energy are negligible. Determine the work required by a reversible pump operating with the same conditions, in kW, and the isentropic pump efficiency. Step 1 Determine the work required by a reversible pump operating with the same conditions, in kW. W p.rev kW i Save for Later Attempts: 0 of 1 used Submit Answer Step 2 The parts of this question must be completed in order. This part will be available when you complete the part above.
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