Chapter 5

Piston Engine–Based Power Plants


Piston engines are the largest group of thermodynamic heat engines in use today. Those used for power generation are invariably derived from other types used for transportation. There are two main types of piston engine: the spark-ignition engine and diesel engine. The diesel engine is the more efficient but it also generates more pollution. There are also two common engine cycles: the two-stroke cycle and four-stroke cycle. The latter is most commonly found in engines used for electricity production. In most engines there is a compromise between high efficiency and high emission levels and big power plants generally require emission control systems. Modified engines such as the dual-fuel ...

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