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1. A Carnot engine operates with 0.136 kg of air as the working substance. The pressure and volume at the beginning of isothermal expansion are 2.1 MPa and 9.6 liters. The air behaves as an ideal gas, the sink temperature is 50°C, and the heat added is 32 kJ. Determine (a) the source temperature; (b) the cycle efficiency; (c) the pressure at the end of isothermal expansion; and (d) the heat rejected to the sink per cycle.

1. A Carnot engine operates with 0.136 kg of air as the working substance. The pressure and volume at the beginning of isothermal expansion are 2.1 MPa and 9.6 liters. The air behaves as an ideal gas, the sink temperature is 50°C, and the heat added is 32 kJ. Determine (a) the source temperature; (b) the cycle efficiency; (c) the pressure at the end of isothermal expansion; and (d) the heat rejected to the sink per cycle.

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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1. A Carnot engine operates with 0.136 kg of air as the working substance. The pressure and volume at the beginning of isothermal expansion are 2.1 MPa and 9.6 liters. The air behaves as an ideal gas, the sink temperature is 50°C, and the heat added is 32 kJ. Determine (a) the source temperature; (b) the cycle efficiency; (c) the pressure at the end of isothermal expansion; and (d) the heat rejected to the sink per cycle.
Transcribed Image Text:1. A Carnot engine operates with 0.136 kg of air as the working substance. The pressure and volume at the beginning of isothermal expansion are 2.1 MPa and 9.6 liters. The air behaves as an ideal gas, the sink temperature is 50°C, and the heat added is 32 kJ. Determine (a) the source temperature; (b) the cycle efficiency; (c) the pressure at the end of isothermal expansion; and (d) the heat rejected to the sink per cycle.
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