A cycle composed of three processes, 1-2: constant volume.2-3 expansion with PV = %3D constant and 3-1: constant pressure, occurs in a piston cylinder assembly. V1=0.025 m^3. U2-U1= 26.4 kJ. P1= 1.8 bar. U2=U3. Work of process 3-1 is equal to -12.3 kJ. Determine the relative increase in the value of Qcycle if the process 2-3 is replaced by a polytropic process with n31.3. Select one: a. 68 % b. 70 % c. 38 % d. 51 %

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A cycle composed of three processes, 1-2:
constant volume.2-3 expansion with PV =
constant and 3-1: constant pressure, occurs
in a piston cylinder assembly. V1=0.025 m^3.
U2-U1= 26.4 kJ. P1= 1.8 bar. U2=DU3. Work of
process 3-1 is equal to -12.3 kJ. Determine
the relative increase in the value of Qcycle if
the process 2-3 is replaced by a polytropic
process with n=1.3.
Select one:
a. 68 %
b. 70 %
c. 38 %
d. 51 %
e. 46 %
Transcribed Image Text:A cycle composed of three processes, 1-2: constant volume.2-3 expansion with PV = constant and 3-1: constant pressure, occurs in a piston cylinder assembly. V1=0.025 m^3. U2-U1= 26.4 kJ. P1= 1.8 bar. U2=DU3. Work of process 3-1 is equal to -12.3 kJ. Determine the relative increase in the value of Qcycle if the process 2-3 is replaced by a polytropic process with n=1.3. Select one: a. 68 % b. 70 % c. 38 % d. 51 % e. 46 %
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