Thermal Energy Harvesting System
Thermal energy harvesting (TEH) is the process of converting thermal energy to electrical energy by using a thermoelectric generator (TEG) made of thermocouples. Thermoelectric power generators have been successfully developed for decades for kilowatt-scale power generation by using waste heat from industrial processes such as vehicle exhaust, space travel, and so on [84]. Such systems involve heat flows at the kilowatt scale and a temperature of hundreds of degrees Centigrade. However, small-scale TEGs [85–86] for obtaining power on the order of milliwatts or lower from ambient thermal energy sources with small temperature differences have only recently been researched [37]. The challenges with utilizing ...
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