Question

How thermal efficiency affects the performance of engine?

Answer 1

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╚» Most of the energy produced by these engines is wasted as heat. In addition to friction losses and losses to the exhaust, there are other operating performance parameters that affect the thermal efficiency. These include the fuel lower calorific value, QLV, compression ratio, and ratio of specific heats,γ [7].

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Answer 2

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1. Thermal efficiency is defined for engines and devices which are used to convert energy in the form of heat to work.
2. Different cycles convert heat to work to differing levels, and to compare them, the concept of thermal efficiency was developed.
3. Thermal efficiency is the ratio of the output work to the input heat.

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