An innovative heat harvesting technology (HEATec) for above-Seebeck performance

O. Puscasu, S. Monfray, G. Savelli, C. Maitre, J. P. Pemeant, P. Coronel, K. Domanski, P. Grabiec, P. Ancey, P. Cottinet, D. Guyomar, V. Bottarel, G. Ricotti, I. Bimbaud, F. Boeuf, F. Gaillard, T. Skotnicki
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引用次数: 16

Abstract

An innovative approach to heat energy harvesting (HEATec) is proposed in this paper. It consists of a two-step conversion of heat into electricity. The first step is a thermo-mechanical conversion by a bimetal and the second is an electromechanical conversion by a piezoelectric. The first developed prototypes show natural thermal resistance matching between their body and the interface with ambient air, and therefore do not need a heat sink in order to work. The available mechanical power (2.7 mW/cm2 measured in practice for a single bimetal, and extendable to theoretical 27 mW/cm2 for 100 bimetals occupying the same surface) that can be converted into electricity may lead to a superior performance compared to the best commercial Seebeck devices. Analytical scaling laws for our technology have been established and show power density gain equal to the scaling factor, making it LSI integration favorable.
一种创新的热收集技术(HEATec),用于塞贝克以上的性能
本文提出了一种创新的热能收集方法。它包括两步将热转化为电。第一步是通过双金属进行热机械转换,第二步是通过压电进行机电转换。第一个开发的原型显示,它们的身体和周围空气的界面之间存在自然的热阻匹配,因此不需要散热器就可以工作。与最好的商业塞贝克设备相比,可用的机械功率(对于单个双金属,在实践中测量到2.7 mW/cm2,并且对于占据同一表面的100个双金属,可以扩展到理论上的27 mW/cm2)可以转换为电能,这可能会导致优越的性能。我们的技术已经建立了分析缩放定律,并显示功率密度增益等于缩放因子,使其有利于LSI集成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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