Problem: The Otto-cycle engine in a Mercedes-Benz SLK230 has a compression ratio of 8.8.Part A. What is the ideal efficiency of the engine? Use γ=1.40.Part B. The engine in a Dodge Viper GT2 has a slightly higher compression ratio of 9.6. How much increase in the ideal efficiency results from this increase in the compression ratio?

FREE Expert Solution

Part A:

Ideal efficiency:

e=1-1(V1V2)γ-1

V1/V2 is the compression ratio.

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Problem Details

The Otto-cycle engine in a Mercedes-Benz SLK230 has a compression ratio of 8.8.

Part A. 

What is the ideal efficiency of the engine? Use γ=1.40.

Part B. 

The engine in a Dodge Viper GT2 has a slightly higher compression ratio of 9.6. How much increase in the ideal efficiency results from this increase in the compression ratio?

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