Задача id16892

In Fig. Figure 18.17 shows an idealized operating cycle of a gasoline internal combustion engine. Section 1-2 corresponds to adiabatic compression of the combustible mixture; section 2-3 - isochoric combustion of fuel, when the working fluid receives the amount of heat Q: section 3-4 corresponds to the adiabatic expansion of the working fluid; section 4-1 - isochoric exhaust gases. Express the engine efficiency through the compression ratio x=V2/V1.

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