Chapter 8

Diesel Power Plant

A Diesel power plant uses a Diesel engine. Of all types of standard prime movers of equivalent size, the Diesel engine has the highest thermal efficiency. Diesel engines are classified as two-stroke and four-stroke engines. The constant pressure process is observed in the Diesel cycle; the constant volume process is noted in the Otto cycle. The Diesel cycle can operate with a higher compression ratio than the Otto cycle. High-compression heat of air is the source of ignition energy in C.I. engines, while a spark plug provides ignition energy to S.I. engines. M.E.P. is defined as the mean pressure which, if imposed on the pistons uniformly, would produce the net work of the cycle. The ideal Diesel cycle follows ...

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