Design of segmented thermoelectric generator based on cost-effective and light-weight thermoelectric alloys

被引：94

作者：

Kim, Hee Seok ^{[1
]}

Kikuchi, Keiko ^{[2
]}

Itoh, Takashi ^{[3
]}

Iida, Tsutomu ^{[4
]}

Taya, Minoru ^{[1
]}

机构：

[1] Univ Washington, Dept Mech Engn, Ctr Intelligent Mat & Syst, Seattle, WA 98195 USA

[2] Tohoku Univ, Dept Mat Proc, Sendai, Miyagi 9808579, Japan

[3] Nagoya Univ, EcoTopia Sci Inst, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[4] Tokyo Univ Sci, Dept Mat Sci & Technol, Noda, Chiba 2788510, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2014年 / 185卷

关键词：

Thermoelectric generator; Segmented pi module; Mg2Si; HMS; Specific power density; MG2SI; GROWTH; FIGURE; MERIT;

D O I：

10.1016/j.mseb.2014.02.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A segmented thermoelectric (TE) generator was designed with higher temperature segments composed of n-type Mg2Si and p-type higher manganese silicide (HMS) and lower temperature segments composed of n- and p-type Bi-Te based compounds. Since magnesium and silicon based TE alloys have low densities, they produce a TE module with a high specific power density that is suitable for airborne applications. A two-pair segmented pi-shaped TE generator was assembled with low contact resistance materials across bonding interfaces. The peak specific power density of this generator was measured at 42.9 W/kg under a 498 degrees C temperature difference, which has a good agreement with analytical predictions. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：45 / 52

页数：8

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