Definition of Heat Engine
Before defining and doing Classification of Heat Engines let us first define Engine. An Engine is a device one form of energy into another form. Hence, a heat engine is a device converts chemical energy of fuel into thermal energy and utilize this thermal energy to perform useful work.
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Classification of Heat Engines
Heat Engines can be broadly classified into Internal and External Combustion Engines. Internal Combustion Engines are the Engines in which fuel is burned inside the cylinder. External Combustion Engines are the Engines in which fuel is burned outside the cylinder and with the help of working fluid, brought to cylinder. Both the types of Heat Engines can be divided into Rotary and Reciprocating each. In Rotary Engines work is obtained from the heat with the help of Rotary devices (e.g. Turbines). In reciprocating Engines heat is converted to the work with the help of reciprocating mechanism (e.g. piston and cylinder).
Below are some short forms given for convenience.
IC stands for Internal Combustion
EC stands for External Combustion
- Open Cycle Gas Turbine
- Wankel Engine
- Gasoline Engine
- Diesel Engine
- Steam Engine
- Stirling Engine
- Steam Turbine
- Closed Cycle Gas Turbine
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