A tool used for determining the maximum possible efficiency of a heat engine operating between two temperatures is based on a theoretical thermodynamic cycle. This cycle consists of two isothermal processes and two adiabatic processes. For instance, if a heat engine receives heat at 500 Kelvin and rejects heat at 300 Kelvin, the tool can quickly compute the theoretical maximum efficiency achievable, regardless of the engine’s specific design.
Understanding this theoretical limit is fundamental in thermodynamics and engineering. It provides a benchmark against which real-world engine performance can be measured, highlighting areas for potential improvement and informing design decisions. Sadi Carnot’s work in the 19th century established this principle, laying the foundation for modern thermodynamics and influencing the development of efficient engines across various industries.