d) Comparing the ideal air standard Otto 4 stroke cycle with the ideal air standard 4...

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d) Comparing the ideal air standard Otto 4 stroke cycle with the ideal air standard 4 stoke Diesel cycle. i) State how does the thermal efficiency compare when running at the same compression ratio. ii) Comparing a modern diesel engine of compression ratio 16 with a modern petrol engine of compression ratio of 8. State and the reason why, which will have the highest thermal efficiency. 5 iii) Briefly describe; when these engines are running at part load how does their thermal efficiency change relative to stochiometric and why. d) Comparing the ideal air standard Otto 4 stroke cycle with the ideal air standard 4 stoke Diesel cycle. i) State how does the thermal efficiency compare when running at the same compression ratio. ii) Comparing a modern diesel engine of compression ratio 16 with a modern petrol engine of compression ratio of 8. State and the reason why, which will have the highest thermal efficiency. 5 iii) Briefly describe; when these engines are running at part load how does their thermal efficiency change relative to stochiometric and why.

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The question youve provided touches on the topic of the efficiency of internal combustion engines comparing ideal Otto and Diesel cycles and examining the effects of compression ratios and partload op... View the full answer