Example 4.5: Stem expands in a turbine from 25 bar and 300°C to acondenser pressare of 20 KPa. Evaluate the Rankine cycle efficiency. What is theefficiency if the initial tempprature of steam is 500°C instead of 300°C ? Nowif the boiler pressure is increased to 60 bar maintaining the steam temperature atturbine inlet at 500°C, calculate the efficiency. Assume the condenser pressureto rmain constant in all the cases.n-25 bar

Draw the TS diagram for a better understanding of the problem. Since process 1-2 is isentropic…

Example 4.5: Steam expands in a turbine from 25 condenser pressare of 20 KPa. Evaluate the Rankine cycle efficiency. What is the efficiency if the initial temperature of steam is 500°C instead of 300°C ? Now if the boiler prcssure is increased to 60 bar maintaining the steam temperature at turbine inlet at 500°C, calculate the efficiency. Assume the condenser pressure to rmain constant in all the cases.

Example 4.5: Steam expands in a turbine from 25 condenser pressare of 20 KPa. Evaluate the Rankine cycle efficiency. What is the efficiency if the initial temperature of steam is 500°C instead of 300°C ? Now if the boiler prcssure is increased to 60 bar maintaining the steam temperature at turbine inlet at 500°C, calculate the efficiency. Assume the condenser pressure to rmain constant in all the cases.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Example 4.5: Stem expands in a turbine from 25 bar and 300°C to a
condenser pressare of 20 KPa. Evaluate the Rankine cycle efficiency. What is the
efficiency if the initial tempprature of steam is 500°C instead of 300°C ? Now
if the boiler pressure is increased to 60 bar maintaining the steam temperature at
turbine inlet at 500°C, calculate the efficiency. Assume the condenser pressure
to rmain constant in all the cases.
n-25 bar

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