Air is used as a working substance in a given internal combustion engine, which is supplied with heat at a constant pressure. Based on the data, calculate the following: 1.Pressure and temperature of ending of isentropic expansion. 2.Cutoff ratio the 3.Thermal efficiency of the сycle 4.The work of the cycle 5.The average pressure of the

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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Air is used as a working k=1.4
substance in a given internal r=15
combustion engine, which is T=200 K
supplied with heat at a constant T=2200 K
pressure. Based on the data, | P=1.0132 bar
calculate the following:
1.Pressure and temperature of | V;=0.16 m³/kg
ending of isentropic
expansion.
2.Cutoff ratio
V,=0.48 m/kg
the
3.Thermal efficiency of the
сycle
4.The work of the cycle
5.The average pressure of the
сycle
Transcribed Image Text:Air is used as a working k=1.4 substance in a given internal r=15 combustion engine, which is T=200 K supplied with heat at a constant T=2200 K pressure. Based on the data, | P=1.0132 bar calculate the following: 1.Pressure and temperature of | V;=0.16 m³/kg ending of isentropic expansion. 2.Cutoff ratio V,=0.48 m/kg the 3.Thermal efficiency of the сycle 4.The work of the cycle 5.The average pressure of the сycle
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