An air compressor absorbs 1000 kg of air per hour at a pressure of 100 kPa and 500 kPa it presses on the pressure. Specific volume of air at compressor Inlet 0.8 m3 / kg, at Exit 0.2 m3 / kg dir. The internal energy of the air at the outlet is 100 kJ/kg more than at the inlet. 60 000 kJ/h heat transfer occurs from the compressor to the air. Kinetic and potential energy find the power needed to operate the compressor, neglecting its changes.

An air compressor absorbs 1000 kg of air per hour at a pressure of 100 kPa and 500 kPa it presses on the pressure. Specific volume of air at compressor Inlet 0.8 m3 / kg, at Exit 0.2 m3 / kg dir. The internal energy of the air at the outlet is 100 kJ/kg more than at the inlet. 60 000 kJ/h heat transfer occurs from the compressor to the air. Kinetic and potential energy find the power needed to operate the compressor, neglecting its changes.

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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