Required information An air-standard cycle with constant specific heats at room temperature is executed in a closed system with 0.0035 kg of air and consists of the following three processes: 1-2 v= Constant heat addition from 95 kPa and 17°C to 380 kPa 2-3 Isentropic expansion to 95 kPa 3-1 P= Constant heat rejection to initial state The properties of air at room temperature are cp=1.005 kJ/kg-K, cv = 0.718 kJ/kg-K, and k=1.4. Determine the thermal efficiency.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Required information
An air-standard cycle with constant specific heats at room temperature is executed in a closed system with 0.0035 kg of
air and consists of the following three processes:
1-2 v= Constant heat addition from 95 kPa and 17°C to 380 kPa
2-3 Isentropic expansion to 95 kPa
3-1 P=Constant heat rejection to initial state
The properties of air at room temperature are cp=1.005 kJ/kg-K, cv=0.718 kJ/kg-K, and k = 1.4.
Determine the thermal efficiency.
The thermal efficiency is
%.
Transcribed Image Text:Required information An air-standard cycle with constant specific heats at room temperature is executed in a closed system with 0.0035 kg of air and consists of the following three processes: 1-2 v= Constant heat addition from 95 kPa and 17°C to 380 kPa 2-3 Isentropic expansion to 95 kPa 3-1 P=Constant heat rejection to initial state The properties of air at room temperature are cp=1.005 kJ/kg-K, cv=0.718 kJ/kg-K, and k = 1.4. Determine the thermal efficiency. The thermal efficiency is %.
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