Abstract
This paper describes the performance (generated electric voltage and current) of thermoelectric conversion system under the condition of continuous heating (200 hours) and cyclic heating (300 cycles). In this experiment, the Seebeck element was used as the thermoelectric conversion element. When the setting temperature of the heating side was 180 ℃, the generated power was maximum. When the module was heated for 200 hours at 180 ℃ (heating side), the output voltage declined 5 %, and the current value reduced or increased about 10% by 200 hours heating. However, the ratio of reduction is not constant at each temperature and the relationship between the temperature difference, the voltage and current were sometimes not proportional. The temperature difference between each element was increased to 80 ℃ by using a cooling fan. When the module was heated from room temperature to 180 ℃ with 40 minutes interval for 300 times, the output voltage and current fell about 15 %.
