Cycle Efficiency

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Cycle Efficiency


The efficiency of a given cycle in an internal combustion engine, in producing work, expressed as the useful work output divided by the work input. For a gas-turbine engine, the cycle efficiency is the useful work energy less the work required for compression divided by the heat energy in the fuel used; for a reciprocating engine, it is the energy of the indicated horsepower divided by the heat energy of the fuel.

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use