Air standard Otto cycle is more efficient than the diesel cycle for the same__________________?
Correct answer: A. Heat addition & compression ratio
- A. Heat addition & compression ratio
- B. Heat addition & pressure
- C. Compression ratio & pressure
- D. Cylinder dimension & rpm
Explanation
For equal compression ratio and equal heat supplied, the Otto cycle has constant-volume heat addition, which gives a higher average temperature of heat addition than the Diesel cycle. Therefore, its thermal efficiency is higher.
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