Thermodynamics rankine cycle problem

AI Thread Summary
The discussion focuses on solving a thermodynamics problem related to an ideal Rankine cycle with superheating. The cycle involves superheated vapor entering the turbine at 440 °C and exiting as saturated vapor at 3.0 bar. Participants inquire about determining the pressure at state 1, the relationship between states 1 and 2 in terms of entropy, and the availability of steam tables for superheated steam. Additionally, there are questions regarding the entropy of the steam at state 2. The conversation emphasizes the need for accurate data and relationships to calculate thermal efficiency and sketch the T-S diagram.
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1. Steam is the working in an ideal rankine cycle with super heating . Super heated vapor (state 1)
enters the turbine at a temperature of 440 °C. Saturated vapor(state 2) exits the turbine at a pressure of 3.0 bar.2. a) Sketch T-S diagram.
b)Determine the thermal efficiency of the ideal rankine cycle.

Assumption:
1...Turbine in
2... Turbine out
3... Condenser out
4... Boiler in

The Attempt at a Solution



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my question is that how I can find out the pressure of the cycle at state 1?
 
Last edited:
What is the relationship between state 1 and state 2 in terms of entropy? Does your steam tables have data for superheated steam? What is the entropy of the steam in state 2?
 

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