For a power cycle operating as shown in the figure below, the energy transfer by heat into the cycle, Qin, is 500 Hot body Qin System

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Need help with these two homework problems 4 and 6.

 

For a power cycle operating as shown in the figure below, the energy transfer by heat into the cycle, Qin, is 500 MJ.
Hot
body
Qin
System
W
cycle = Qin -Qout
Qout
Cold
body
What is the net work developed, in MJ, if the cycle thermal efficiency is 50.00%? What is the value of Qout, in MJ?
Wcycle =
MJ
Qout
i
MJ
%3D
Transcribed Image Text:For a power cycle operating as shown in the figure below, the energy transfer by heat into the cycle, Qin, is 500 MJ. Hot body Qin System W cycle = Qin -Qout Qout Cold body What is the net work developed, in MJ, if the cycle thermal efficiency is 50.00%? What is the value of Qout, in MJ? Wcycle = MJ Qout i MJ %3D
A gas contained within a piston-cylinder assembly undergoes three processes in series:
Process 1-2: Constant volume from p1 = 1 bar, V1 = 6 m³ to state 2, where p2 = 2 bar.
Process 2-3: Compression to V3 = 2.5 m3, during which the pressure-volume relationship is pV = constant.
Process 3-4: Constant pressure to state 4, where V4 = 1 m3.
Determine the work for each process, in kJ.
Process 1-2:
W12 =
i
kJ
Process 2-3:
W23 =
i
kJ
Process 3-4:
W34 =
i
kJ
Transcribed Image Text:A gas contained within a piston-cylinder assembly undergoes three processes in series: Process 1-2: Constant volume from p1 = 1 bar, V1 = 6 m³ to state 2, where p2 = 2 bar. Process 2-3: Compression to V3 = 2.5 m3, during which the pressure-volume relationship is pV = constant. Process 3-4: Constant pressure to state 4, where V4 = 1 m3. Determine the work for each process, in kJ. Process 1-2: W12 = i kJ Process 2-3: W23 = i kJ Process 3-4: W34 = i kJ
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