不同边界条件下热电发电器件瞬态响应特性分析

罗丁,吴海峰,杨学林

Analysis of transient response characteristics of thermoelectric power generation device under different boundary conditions

Ding LUO,Hai-feng WU,Xue-lin YANG

表 1 TEG1-12708热电材料参数

Tab.1 Thermoelectric material properties of TEG1-12708

参数 数值 P型半导体 N型半导体 热导率 λ/(W·m−1·K−1) $ \begin{aligned} 1.685 &\times {10^{ - 7}}{T^3} - \\& 1.895 \times {10^{ - 4}}{T^2}+ \\& 0.070T - 6.839 \\ \end{aligned} $ $ \begin{aligned} 1.474 &\times {10^{ - 7}}{T^3} - \\ &1.590 \times {10^{ - 4}}{T^2}+ \\ &0.057T - 5.096 \\ \end{aligned} $ 塞贝克系数 S/(μV·K−1) $ \begin{aligned} 1.322 & \times {10^{ - 5}}{T^3} - \\ &0.017{T^2}+ \\ &7.310T - 853.661 \\ \end{aligned} $ $ \begin{aligned} - 1.524 & \times {10^{ - 5}}{T^3}+ \\ &0.019{T^2} - \\ &8.230T+981.109 \\ \end{aligned} $ 电阻率 σ−1/(10−5 Ω·m) $ \begin{aligned} - 9.035 & \times {10^{ - 9}}{T^3}+ \\ &1.638 \times {10^{ - 5}}{T^2} - \\& 4.250 \times {10^{ - 3}}T+0.665 \\ \end{aligned} $ $ \begin{aligned} 4.452 & \times {10^{ - 8}}{T^3} - \\& 5.529 \times {10^{ - 5}}{T^2}+ \\& 2.591 \times {10^{ - 2}}T - 3.409 \\ \end{aligned} $ 比热容 c/(J·kg−1·K−1) $ \begin{aligned} 1.729 & \times {10^{ - 5}}{T^3} - \\& 0.021{T^2}+ \\& 8.440T - 945.686 \\ \end{aligned} $ $ \begin{aligned} 1.020 & \times {10^{ - 5}}{T^3} - \\& 1.280 \times {10^{ - 2}}{T^2}+ \\& 5.372T - 581.600 \\ \end{aligned} $