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The 20 pages that link to Heat engine, each with the reason it gives.

• ThermodynamicsRelated: Its performance is bounded by thermodynamic laws.

• EntropyRelated: Entropy places a ceiling on the fraction of heat convertible to work.

• First law of thermodynamicsBroader topic: Its energy balance shows why heat input divides between work and rejected heat.

• Second law of thermodynamicsRelated: The law forbids converting all absorbed heat into work in a cyclic engine.

• Carnot cycleNarrower topic: The Carnot cycle defines the greatest efficiency such a device can attain between fixed temperatures.

• Thermal energyRelated: It uses a temperature difference to extract useful work from thermal energy.

• Thermodynamic systemRelated: Its working substance is analyzed as a system receiving and rejecting energy.

• Thermal efficiencyNarrower topic: Thermal efficiency measures the work produced by a heat engine relative to its heat input.

• Thermodynamic cycleBroader topic: It uses a thermodynamic cycle to convert part of the supplied heat into work.

• Work (thermodynamics)Related: Its useful output is work produced during a thermodynamic cycle.

• Carnot's theoremNarrower topic: The theorem compares the efficiencies of heat engines sharing the same reservoirs.

• Irreversible processRelated: Irreversible effects reduce the work an engine can extract from heat.

• Rudolf ClausiusNarrower topic: The limits of heat engines motivated Clausius's formulation of thermodynamic laws.

• Entropy productionRelated: Entropy production in its components limits how much supplied heat becomes useful work.

• Thermodynamic efficiencyBroader topic: Its efficiency is the work produced divided by heat absorbed.

• Perpetual motionCompared with: Real engines can produce work, but only by consuming a heat source and rejecting some heat.

• Quasistatic processNarrower topic: Quasistatic cycles provide ideal benchmarks for heat-engine performance.

• Clausius theoremBroader topic: Engine cycles show how the bound constrains heat-to-work conversion.

• Laws of thermodynamicsRelated: The laws determine its energy balance and maximum efficiency.

• Nicolas Léonard Sadi CarnotNarrower topic: Carnot analyzed the general limits applying to these devices.