A Study on Thermoelectric Power Generator by Solar Energy Using Fresnel Lens

This thermoelectric power generation from solar radiation used an optical lens to focus solar energy onto the thermoelectric module. The distance between the optical lens and thermoelectric module was determined to investigate the highest temperature value of the hot side of the thermoelectric module and the heat dissipation on the cold side by using a 12 VDC fan. The results showed that the maximum temperature of the hot side was 69.6 °C and the temperature difference was 38.6 °C. The thermoelectric module could produce 1.03 W power output with an energy conversion efficiency of 1.81%. This power can be applied to small bulbs or rechargeable batteries.