Enter the temperature of the cold reservoir and the temperature of the hot reservoir to calculate the theoretic Carnot efficiency.

## Carnot Efficiency Formula

The following equation is used to calculate the theoretical efficiency of a heat engine, otherwise known as the Carnot Efficiency.

n = (Th – Tc) / Th * 100%

- Where n is the carnot efficiency
- Th is the hot temperature (Kelvin)
- and Tc is the cold temperature. (Kelvin

A heat engine is a device used to capture energy or heat. During the process of a heat moving from hot to cold, energy can be captured. However, this can not be done at a 100% efficiency due to the laws of thermodynamics.

In it’s essence, the Carnot Efficiency is the theoretical max amount of energy you can get from a heat engine with two reservoirs of different temperatures. It’s important to note that the temperatures used in this equation have to be in Kelvin. Celsius or Fahrenheit will not yield correct results.

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