thermopile
/ˈθɜrməˌpaɪl/
noun
- A device that converts heat energy into electrical energy, made of a series of thermocouples connected together.
- A thermopile is used in some gas stoves to generate electricity for the igniter.
- The spacecraft's power system relies on a thermopile to turn heat from radioactive decay into electricity.
- Engineers designed a small thermopile to harvest waste heat from industrial machines.