Thermodynamics rankine cycle problem

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SUMMARY

The discussion focuses on the analysis of an ideal Rankine cycle utilizing superheated steam. The cycle begins with superheated vapor at 440 °C entering the turbine, which exits as saturated vapor at a pressure of 3.0 bar. Participants seek to determine the thermal efficiency of the cycle and the pressure at state 1, as well as the relationship between states 1 and 2 in terms of entropy. Additionally, questions arise regarding the availability of steam tables for superheated steam and the entropy value at state 2.

PREREQUISITES
  • Understanding of the Rankine cycle and its components
  • Knowledge of thermodynamic properties of steam
  • Familiarity with T-S diagrams
  • Access to steam tables for superheated and saturated steam
NEXT STEPS
  • Calculate thermal efficiency of the ideal Rankine cycle
  • Learn to sketch T-S diagrams for thermodynamic cycles
  • Research steam tables for superheated steam properties
  • Explore the relationship between entropy at different states in thermodynamic cycles
USEFUL FOR

Thermodynamics students, mechanical engineers, and professionals involved in power generation and thermal system design will benefit from this discussion.

Robax
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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



[/B]
 

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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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