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Thermal Efficiency

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Diesel Cycle

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The Diesel cycle is a combustion process of a reciprocating internal combustion engine. In it, fuel is ignited by heat generated during the compression of air in the combustion chamber, into which fuel is then injected.

Atkinson Cycle

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The Atkinson-cycle engine is a type of internal combustion engine invented by James Atkinson in 1882. The Atkinson cycle is designed to provide efficiency at the expense of power density, or total power extracted per ...

Bell Coleman Cycle

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The Bell Coleman cycle is a Brayton cycle driven in reverse, via network input, with air as the working fluid. Also called a gas refrigeration cycle, its purpose is to move heat, rather than produce work.

Brayton Cycle

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The Brayton cycle is a thermodynamic cycle that describes the workings of a constant-pressure heat engine.

Carnot Cycle for a Refrigerator

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The Carnot cycle is a theoretical thermodynamic cycle conducted on an ideal gas consisting of an isothermal expansion, an isentropic expansion and an isothermal compression, concluding with an isentropic compression.

Carnot Cycle for a Heat Engine

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The Carnot cycle is a theoretical thermodynamic cycle conducted on an ideal gas consisting of an isothermal expansion, an isentropic expansion and an isothermal compression, concluding with an isentropic compression.

Carnot Cycle for a Heat Pump

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The Carnot cycle is a theoretical thermodynamic cycle conducted on an ideal gas consisting of an isothermal expansion, an isentropic expansion and an isothermal compression, concluding with an isentropic compression.

Ericsson Cycle

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The Ericsson cycle consists of an isothermal compression, an isobaric heat addition, an isothermal expansion and an isobaric heat removal.

Lenoir Cycle

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The Lenoir cycle is an idealized thermodynamic cycle often used to model a pulsejet engine.

Otto Cycle

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An Otto cycle is an idealized thermodynamic cycle that describes the functioning of a typical spark-ignition piston engine.

Rankine Cycle

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The Rankine cycle is a model that is used to predict the performance of steam turbine systems, though the theoretical principle also applies to reciprocating engines such as steam locomotives. The Rankine cycle is an ...

Stirling Cycle for a Heat Engine

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The Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices.

Stirling Cycle for a Refrigerator

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The Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices.

Stirling Cycle for a Heat Pump

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The Stirling cycle is a thermodynamic cycle that describes the general class of Stirling devices.