热电发电机余热回收和空间应用的进展与展望

IF 2.7 3区 物理与天体物理 Q2 PHYSICS, APPLIED Journal of Applied Physics Pub Date : 2023-09-08 DOI:10.1063/5.0166338
C. Candolfi, Soufiane El Oualid, B. Lenoir, Thierry Caillat
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引用次数: 0

摘要

热能通过热电(TE)效应直接转化为电流依赖于高效的TE材料与热电发电机(teg)的成功集成,热电发电机(teg)具有优化的特性,以确保最佳的输出功率密度或转换效率。自20世纪60年代以来,这种技术成功地应用于深空探测器和地外漫游者,其废热收集应用的发展面临着与这些设备所经受的高温和氧化条件相关的几个关键问题。本展望简要概述了空间任务中使用的放射性同位素热电发生器中使用的一些有前景的热电材料/技术,并重点介绍了过去几年该领域在teg制造方面取得的进展。特别是,我们强调了能够实现更高功率密度的最新发展,从而为中温应用开辟了新的研究方向。除了展示如何在不牺牲设备性能的情况下使用更少量的TE材料之外,我们还提供了挑战和有待解决的问题的展望,以使这项技术在日常生活环境中经济和技术上可行。
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Progress and perspectives in thermoelectric generators for waste-heat recovery and space applications
The direct conversion of thermal energy into electrical current via thermoelectric (TE) effects relies on the successful integration of efficient TE materials into thermoelectric generators (TEGs) with optimized characteristics to ensure either optimum output power density or conversion efficiency. Successfully employed for powering deep-space probes and extraterrestrial rovers since the 1960s, the development of this technology for waste-heat-harvesting applications faces several key issues related to the high temperatures and oxidizing conditions these devices are subjected to. This Perspective provides a brief overview of some prospective thermoelectric materials/technologies for use in radioisotope thermoelectric generators utilized in space missions and highlights the progress made in the field over the last years in the fabrication of TEGs. In particular, we emphasize recent developments that enable to achieve increased power densities, thereby opening up novel research directions for mid-range-temperature applications. In addition to showing how using lower quantities of TE materials may be achieved without sacrificing device performance, we provide an outlook of the challenges and open questions that remain to be addressed to make this technology economically and technologically viable in everyday-life environments.
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来源期刊
Journal of Applied Physics
Journal of Applied Physics 物理-物理:应用
CiteScore
5.40
自引率
9.40%
发文量
1534
审稿时长
2.3 months
期刊介绍: The Journal of Applied Physics (JAP) is an influential international journal publishing significant new experimental and theoretical results of applied physics research. Topics covered in JAP are diverse and reflect the most current applied physics research, including: Dielectrics, ferroelectrics, and multiferroics- Electrical discharges, plasmas, and plasma-surface interactions- Emerging, interdisciplinary, and other fields of applied physics- Magnetism, spintronics, and superconductivity- Organic-Inorganic systems, including organic electronics- Photonics, plasmonics, photovoltaics, lasers, optical materials, and phenomena- Physics of devices and sensors- Physics of materials, including electrical, thermal, mechanical and other properties- Physics of matter under extreme conditions- Physics of nanoscale and low-dimensional systems, including atomic and quantum phenomena- Physics of semiconductors- Soft matter, fluids, and biophysics- Thin films, interfaces, and surfaces
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