A. Calculate the thermal efficiency of a Rankine cycle in which the steam is initially dry saturated at 2 Mpa and the condenser pressure 7kN/m². Express this efficiency as a percentage of a Carnot cycle efficiency of the same limits of temperature. B. If the steam leaves the boiler at 350°C with the same pressure of the boiler and condenser given above. Explain why the Rankine efficiency in (A) is less than in (B), and why the ratio of efficiencies of the respective Rankine and Carnot is grater.
A. Calculate the thermal efficiency of a Rankine cycle in which the steam is initially dry saturated at 2 Mpa and the condenser pressure 7kN/m². Express this efficiency as a percentage of a Carnot cycle efficiency of the same limits of temperature. B. If the steam leaves the boiler at 350°C with the same pressure of the boiler and condenser given above. Explain why the Rankine efficiency in (A) is less than in (B), and why the ratio of efficiencies of the respective Rankine and Carnot is grater.
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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A. Calculate the thermal efficiency of a Rankine cycle in which the steam is initially dry saturated at 2 Mpa and the condenser pressure 7kN/m². Express this efficiency as a percentage of a Carnot cycle efficiency of the same limits of temperature.
B. If the steam leaves the boiler at 350°C with the same pressure of the boiler and condenser given above. Explain why the Rankine efficiency in (A) is less than in (B), and why the ratio of efficiencies of the
respective Rankine and Carnot is grater.
![Q.7 A. Calculate the thermal efficiency of a Rankine cycle in which the steam
is initially dry saturated at 2 Mpa and the condenser pressure 7kN/m².
Express this efficiency as a percentage of a Carnot cycle efficiency of the
same limits of temperature.
B. If the steam leaves the boiler at 350"C with the same pressure of the
boiler and condenser given above. Explain why the Rankine efficiency
in (A) is less than in (B), and why the ratio of efficiencies of the
respective Rankine and Carnot is grater.
Ans [ 88.3%, 49.9%]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe02c5d8f-ecf5-4411-a644-fc3b71f96e56%2Fb648b894-6262-463b-870c-6cdf273b6df2%2Fqyws50l_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q.7 A. Calculate the thermal efficiency of a Rankine cycle in which the steam
is initially dry saturated at 2 Mpa and the condenser pressure 7kN/m².
Express this efficiency as a percentage of a Carnot cycle efficiency of the
same limits of temperature.
B. If the steam leaves the boiler at 350"C with the same pressure of the
boiler and condenser given above. Explain why the Rankine efficiency
in (A) is less than in (B), and why the ratio of efficiencies of the
respective Rankine and Carnot is grater.
Ans [ 88.3%, 49.9%]
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