テルル化蒼鉛による熱電冷却
その3: 冷却実験
1959 年 28 巻 2 号 p. 85-87
詳細
1959 年 28 巻 2 号 p. 85-87
The cooling effects of thermojunctionscomposed of p and n type bismuth-tellurides have been studied. Thermoelectric materials used are p and n type Bi2Te3 whose properties are: ρp=0.60×10-3Ω·cm, αp=142μV·deg-1, κp=1.9×10-2W·cm·deg, ρn=0.78×10-3Ω·cm, αn=-179μV·deg and κn=2.0×10-2W·cm-1·deg-1 where ρ: electrical resistivity, α: thermoelectric power and κ: thermal conductivity.
The temperature of the cold junction has been measured in vacuum as a function of the temperature of the hot junction. The experimental results show fairly good agreement with what is predicted by a simple theory. The temperature difference of 67 degree has been obtained at a mean temperature of 17°C.
