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In an Internal Combustion Engine, the fuel is burned in the cylinder or vessel. Eg. Diesel or Petrol engine used in Cars.

  • Internal engine has its energy ignited in the cylinder, like 99.9% of engines today.
In an External Combustion Engine, the internal working fuel is not burned. Here the fluid is being heated from an external source. The fuel is heated and expanded through the internal mechanism of the engine resulting in work. Eg. Steam Turbine, Steam engine Trains.
  • An external combustion example is a steam engine where the heating process is done in an boiler out side the engine.
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12y ago

in internal combustion engine combustion happens internally in cylinder and in external combustion engine combustion happens externally in boiler

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Q: Difference between internal combustion engines and external combustion engines?
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What is the difference between internal combustion engine and external combustion engine?

In an Internal Combustion Engine, the Fuel is burnt in the cylinder or vessel eg. Diesel or Petrol engine used in Cars.Gasoline engines, Wankel engines, diesels, gas turbines are all examples of internal combustion.In an External Combustion Engine, the internal working fuel is not burnt. Here the fluid is being heated from an external source. The fuel is heated and expanded through the internal mechanism of the engine resulting in work. eg. Steam Turbine, Steam engine Trains.


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