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An ideal diesel engine has a compression ratio of 20 and uses air as the working...

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Mechanical Engineering

An ideal diesel engine has a compression ratio of 20 and usesair as the working fluid. The state of air at the beginning of thecompressor process is 100 kpa and 27 C. The maximum temperature inthe cycle is 2200 K and the cutoff ratio is 1.2

Determine the following:

The internal energies at the beginning and the end of thecompression

The enthalpy before and end of the combustion

The internal energy before and end of the expansion

The heat input, heat rejection and network output

The thermal efficiency

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