Segmented Generator Modules Using Bi2Te3-Based Materials

被引：34

作者：

Anatychuk, L. I. ^{[1
,2
]}

Vikhor, L. N. ^{[1
,2
]}

Strutynska, L. T. ^{[1
,2
]}

Termena, I. S. ^{[1
,2
]}

机构：

[1] Natl Acad Sci, Inst Thermoelect, UA-58029 Chernovtsy, Ukraine

[2] Minist Educ & Sci, UA-58029 Chernovtsy, Ukraine

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2011年 / 40卷 / 05期

关键词：

Thermoelectric generator module; segmented thermoelement; Bi2Te3-based material; functionally graded thermoelectric material; optimal control theory;

D O I：

10.1007/s11664-010-1468-x

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Previously, the Institute of Thermoelectricity has created Bi2Te3-based modules with an efficiency of similar to 7% in the temperature range of 30A degrees C to 300A degrees C, with legs that employed homogeneous thermoelectric materials. Herein, we present the results of development of such modules with legs made of inhomogeneous materials. Based on the theory of optimal control and object-oriented computer technology, programs to determine the requirements for material properties in the inhomogeneous legs were created. It was established that introduction of inhomogeneity in the form of continuous and step changes in three-segment n- and p-type legs yields almost identical efficiency increases of about 15%. Use of two segments reduces this value of 10% to 12%. Modules with two-segment legs encapsulated in thin-walled metal cases filled with inert gas have been built, yielding improved efficiency of 7.8% to 8%.

引用

页码：957 / 961

页数：5

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