Thermodynamic efficiency

Thermodynamic efficiency measures how effectively a machine converts energy from a fuel into useful work or output. It compares the useful energy produced to the total energy consumed, showing how well the system minimizes waste heat and other losses. For example, a highly efficient engine uses most of the fuel's energy to move a vehicle, while a less efficient one loses more energy as heat. In essence, it indicates the performance of energy conversion processes, helping us understand and improve devices like engines, power plants, and refrigerators.