The Carnot cycle is a thermodynamic cycle that describes the maximum possible efficiency of a heat engine operating between two reservoirs at different temperat...
The Carnot cycle is a thermodynamic cycle that describes the maximum possible efficiency of a heat engine operating between two reservoirs at different temperatures. The cycle consists of four processes:
Isothermal expansion where the working fluid expands from a lower temperature to a higher temperature at constant pressure.
Isothermal compression where the working fluid contracts from a higher temperature to a lower temperature at constant pressure.
Adiabatic expansion where the working fluid expands from a higher temperature to a lower temperature at constant volume.
Adiabatic compression where the working fluid contracts from a lower temperature to a higher temperature at constant volume.
The efficiency of a heat engine is determined by the temperature difference between the two reservoirs and the work done in each cycle. The Carnot cycle provides an upper bound for the efficiency of any heat engine operating between two given temperatures.
For a given set of temperatures, the Carnot cycle can be represented by a line graph showing the relationship between the maximum work efficiency and the temperature difference between the two reservoirs.
The efficiency of the Carnot cycle is given by the formula:
where:
(\eta_{Carnot}) is the maximum efficiency of the cycle.
(T_C) is the temperature of the cold reservoir.
(T_H) is the temperature of the hot reservoir.
The Carnot cycle is a fundamental concept in thermodynamics and is used to model the maximum efficiency of real-world heat engines