f. A water-jacketed compressor receives 140 L/s air at 100 kPa and 21 deg C and discharges the air at 140 deg C. Cooling water entering at 16 deg C and leaving at 21 deg C is circulated at the rate of 0.18 L/s. Determine the power required for the driving motor for this compressor, assuming the friction losses with rotating parts account to 5% of the total power required. a. 10 kW b. 15 kW c. 20 kW d. 25 kW

f. A water-jacketed compressor receives 140 L/s air at 100 kPa and 21 deg C and discharges the air at 140 deg C. Cooling water entering at 16 deg C and leaving at 21 deg C is circulated at the rate of 0.18 L/s. Determine the power required for the driving motor for this compressor, assuming the friction losses with rotating parts account to 5% of the total power required. a. 10 kW b. 15 kW c. 20 kW d. 25 kW

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

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 20RQ: Welded ______sealed compressors are normally used in household refrigerators.

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