Cost optimization of thermoelectric materials for power generation: The case for ZT at (almost) any cost

被引：30
作者：
Dames, C. [1 ,2 ]
机构：
[1] Univ Calif Berkeley, Mech Engn, Berkeley, CA 94720 USA
[2] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA USA
来源：
SCRIPTA MATERIALIA | 2016年 / 111卷
基金：
美国国家科学基金会;
关键词：
Thermoelectric; Cost; Optimization; System; FIGURE; DESIGN;
D O I：
10.1016/j.scriptamat.2015.06.018
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We quantify the tradeoff between ZT and materials cost for thermoelectric energy scavengers, considering 31 real materials. It is nearly always practical to aggressively miniaturize the legs until the overall system cost is limited by the heat exchangers and ceramic spreader plates. For thermoelectric materials costing less than C-crit '''. similar to 1 $/cm(3) (similar to 100 $/kg), the material might as well be free, and even costs as high as similar to 10 $/cm(3) (similar to 1000 $/kg) may still be acceptable. Thus, the materials goal is maximizing zT at (almost) any cost. (c) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：16 / 22
页数：7
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