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PowerPedia:External combustion engine

Lasted edited by Andrew Munsey, updated on June 14, 2016 at 9:31 pm.

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An external combustion engine (abreviation ECE) is a Heat engine which burns There was an error working with the wiki: Code[5] to heat a separate working fluid which then in turn performs work. Examples include Steam engines and Stirling engines.

For the same power, external combustion engines are often less compact and heavier than Internal combustion engines. This is because they contain a heat exchanger to heat the working fluid. However, they can be more efficient, and are much less particular about the type of fuel they burn. They also tend to be cleaner due to lower combustion temperatures and pressures which create less exotic exhaust gasses, such as nitrogen oxides (NO, NO2 etc.).

A There was an error working with the wiki: Code[6] is a good example of an external-combustion engine. Heat from burning fuel or from a nuclear reactor changes water in a boiler to steam. Pipes carry the steam into the turbine, which has a series of bladed wheels attached to a shaft. The high-temperature steam expands as it rushes through the turbine and so pushes on the blades and causes them to turn the shaft. Steam leaving the turbine has a much lower temperature. The spinning shaft can drive an electric generator, move a ship's propeller, or do other useful work. Externally heated cycles include the There was an error working with the wiki: Code[7], There was an error working with the wiki: Code[8] and There was an error working with the wiki: Code[9].

Related concepts

Combustion

Internal combustion engine

Steam engine

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Stirling engine

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Engine

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External articles and references

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External combustion engine, Rocky Mountain Institute, Snowmass, CO 81654-9199

There was an error working with the wiki: Code[1], Wikipedia: The Free Encyclopedia. Wikimedia Foundation.

See also

- PowerPedia

- Main Page

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