Thermodynamics course with a project , its about example 8.1 and 8.2 in the book : choose different...

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Thermodynamics course with a project , its about example 8.1 and 8.2 in the book : choose different parameters and go through the analysis of the system and explain and write a summary
	
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Microsoft Word - Example 8
Example 8.1) 
Objective: To analyze the different parameters of the ideal Rankine cycle and system as a 
whole. 
Assumption: 
i. All processes of the working fluid are internally reversible. 
ii. Expansion and compression process are adiabatic and isentropic. 
iii. The pressure drop in the boiler, condenser and the connection tubes are negligible. 
iv. No heat losses to the environment from the system, except the heat rejection in the 
condenser through intercooling. 
v. Saturated vapor enters the turbine and condensate exits the condenser as saturated 
liquid. 
vi. Intercooling processes are isobaric. 
vii. Kinetic and potential energy effects are negligible. 
Schematic diagram of the ideal Rankine cycle:
Boiler 
Turbine 
Condenser 
Pump 
�� � 
���� 
�� � 
Intercooler 
�� � 
����� 
�� � 
4 
3 
1 
2 
6 
5 
T-S diagram of the system:
Processes: 
A. Process 1-2 
The dry saturated vapor expands through a turbine, generating power. This decreases the 
temperature and pressure of the vapor, and some condensation may occur. The output in this 
process can be easily calculated using the Enthalpy-entropy chart or the steam tables. 
Here, in the example, pressure at point 1 is given, hence temperature, specific enthalpy and 
specific entropy of vapor can be determined using pressure and quality as the function. 
� = "($ = $ , & = 1) 
ℎ = "($ = $ , & = 1) 
* = "($ = $ , & = 1)
B. Process 2-3 
The wet vapor then enters a condenser where it is condensed at a constant temperature to 
become a saturated liquid. 
The process 1-2 is isentropic. So, the specific entropy at point 2 will be *+ = *  
Now, the pressure at point 2 is known, hence specific enthalpy and quality of vapor can be 
determined using pressure and specific entropy as the function. 
ℎ+ = "($ = $+, * = *+) 
&+ = "($ = $+, * = *+)
C. Process 3-4 
The working fluid is pumped from low to high pressure.

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