Q1) A- A Rankine eyele operates between pressures of 60 bar and 60 kPa. The maximum eyele temperature is 580°C. If the steam turbine efficiency is 0.96, calculate the specific work and thermal efficiency. B- In a steam power eyele, the steam supply is at 20 bar and dry and saturated. The condenser pressure is 0.1 bar. Calculate the Carnot and Rankine efficiencies of the cycle. Q2) A- An air standard Otto cycle has a compression ratio of 8, the lowest cycle pressure of 0.1 MPa and operates between temperature limits of 30°C and 1400 C. Calculate the eyele efficiency and the temperature and pressure after the isentropic expansion. B- The efficiency of an Otto eyele is 55%. What is the compression ratio?
Q1) A- A Rankine eyele operates between pressures of 60 bar and 60 kPa. The maximum eyele temperature is 580°C. If the steam turbine efficiency is 0.96, calculate the specific work and thermal efficiency. B- In a steam power eyele, the steam supply is at 20 bar and dry and saturated. The condenser pressure is 0.1 bar. Calculate the Carnot and Rankine efficiencies of the cycle. Q2) A- An air standard Otto cycle has a compression ratio of 8, the lowest cycle pressure of 0.1 MPa and operates between temperature limits of 30°C and 1400 C. Calculate the eyele efficiency and the temperature and pressure after the isentropic expansion. B- The efficiency of an Otto eyele is 55%. What is the compression ratio?
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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![Q1)
A- A Rankine eyele operates between pressures of 60 bar and 60 kPa. The maximum cycle
temperature is 580°C. If the steam turbine efficiency is 0.96, calculate the specific work
and thermal efficiency.
B- In a steam power cycle, the steam supply is at 20 bar and dry and saturated. The
condenser pressure is 0.1 bar. Calculate the Carnot and Rankine efficiencies of the cycle.
Q2)
A- An air standard Otto cycle has a compression ratio of 8, the lowest cycle pressure of 0.1
MPa and operates between temperature limits of 30°C and 1400-C. Calculate the cycle
efficiency and the temperature and pressure after the isentropic expansion.
B- The efficiency of an Otto cycle is 55%. What is the compression ratio?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcab77a50-6399-427a-b09d-5a88341fe0f2%2F4f58a7ae-618e-475b-ae59-1ea30aa15bb9%2Feik374g_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q1)
A- A Rankine eyele operates between pressures of 60 bar and 60 kPa. The maximum cycle
temperature is 580°C. If the steam turbine efficiency is 0.96, calculate the specific work
and thermal efficiency.
B- In a steam power cycle, the steam supply is at 20 bar and dry and saturated. The
condenser pressure is 0.1 bar. Calculate the Carnot and Rankine efficiencies of the cycle.
Q2)
A- An air standard Otto cycle has a compression ratio of 8, the lowest cycle pressure of 0.1
MPa and operates between temperature limits of 30°C and 1400-C. Calculate the cycle
efficiency and the temperature and pressure after the isentropic expansion.
B- The efficiency of an Otto cycle is 55%. What is the compression ratio?
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