| 摘要 |
PROBLEM TO BE SOLVED: To provide a power generator whose power generation efficiency is improved by controlling a temperature between two thermoelectric elements.SOLUTION: A power generator 1 includes: a first thermoelectric element 10 disposed to exchange heat with a high-temperature heat source 13; and a second thermoelectric element 20 disposed to exchange heat with a low-temperature heat source 23. A performance index of the first thermoelectric element 10 is higher than that of the second thermoelectric element 20 at a temperature of the high-temperature heat source 13; the performance index of the second thermoelectric element 20 is higher than that of the first thermoelectric element 10 at a temperature of the low-temperature heat source 23; and a heat transport amount of a heat transport medium that transports heat by circulating between the first thermoelectric element 10 and the second thermoelectric element 20 is controlled. As a result, a heat amount moving from the first thermoelectric element 10 on a high-temperature heat source 13 side to the second thermoelectric element 20 on a low-temperature heat source 23 side is controlled and temperatures of the first thermoelectric element 10 and the second thermoelectric element 20 are set at temperatures at which favorable power generation efficiency is attained, thereby improving power generation efficiency of the power generator 1. |
