Practice Gas Power Cycles (4) - Power and Refrigeration Cycles - Applied Thermodynamics

Practice: Gas Power Cycles

Lesson 4Power and Refrigeration Cycles

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8 questions

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2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the acronym I.C.C.E. stand for regarding the Otto cycle?
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Remember the steps of the Otto cycle.
Question 2.
True or False: The Diesel cycle adds heat at constant volume.
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Think about how heat is added in the Diesel cycle.
3Question 3.
What is the main process during the first phase of the Otto cycle?
- Isentropic Expansion
- Constant Volume Heat Addition
- Isentropic Compression
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Think about the order of processes in the Otto cycle.
4Question 4.
True or False: The Diesel cycle has a higher efficiency than the Otto cycle for the same compression ratio.
- True
- False
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Consider their respective heat addition processes.
Question 5.
A diesel engine operates at a compression ratio of 18. Calculate its theoretical efficiency and compare it to an Otto engine operating at a compression ratio of 10. Which is more efficient?
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Use the efficiency formulas for both cycles.
Question 6.
Design a combined cycle power plant scenario where a Brayton cycle is followed by a Rankine cycle. Discuss how the cycle efficiencies could be maximized.
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Think about how to utilize waste heat most effectively.

4 more questions in this section. Enroll free to practise them all.