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Updated: Oct 26, 2025

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
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Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation

Published on: February 5, 2020

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通过动量和能量多频段对齐实现的发电和热电冷却

Bingchao Qin1, Dongyang Wang1, Xixi Liu2

  • 1School of Materials Science and Engineering, Beihang University, Beijing 100191, China.

Science (New York, N.Y.)
|July 30, 2021
PubMed
概括

研究人员使用合金开发了宽带化 (SnSe) 晶体,用于增强热电冷却. 这些材料具有出色的热电性质,可提供高效的发电和显著的冷却能力.

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In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
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Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
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