Abstract
This study is to investigate of a utilization of thermal energy by slight temperature difference. An experiment has been carried out using the Peltier elements. We focused on an electric power generation system using thermal energy of hot spring water and Seebeck effect of thermoelectric conversion elements. In order to set a suitable temperature difference on both sides of the Peltier element, an apparatus consists of a rubber heater and a water cooled jacket. This paper described a relationship between the electric power and the temperature difference of the Peltier element. This system will be applied to the continuous power generation and to the LED lighting for 24hours.
