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首页> 外文期刊>International Journal of Heat and Mass Transfer >Cooling performance of transverse thermoelectric devices
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Cooling performance of transverse thermoelectric devices

机译：横向热电装置的冷却性能

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摘要

Thermoelectric devices operated in the transverse mode can decouple heat flow from the electrical current, which in turn offers some practical advantages in device design. In the current study, hypothetical transverse thermoelectric devices are constructed from alternating layers of a bismuth telluride based thermoelectric material and pure metals. The cooling performance of such devices used in the refrigeration mode is examined in terms of the maximum temperature difference, heat flux density, and coefficient of performance. Results show that the size of the uniform cooling region is determined by the aspect ratio of the device, and the temperature homogeneity in this region improves as the individual material layers become thinner. We further show that the effective heat conduction of transverse thermoelectric device when used in the active cooling mode may outperform a heat sink made of pure copper or aluminum, which indicates transverse thermoelectric devices may have potentials in applications such as electronic cooling.
机译：在横向模式下运行的热电设备可以使热流与电流解耦，从而在设备设计中提供了一些实际的优势。在当前的研究中，假设的横向热电装置由碲化铋基热电材料和纯金属的交替层构成。根据最大温差，热通量密度和性能系数检查在制冷模式下使用的此类设备的冷却性能。结果表明，均匀冷却区域的尺寸由器件的纵横比决定，并且随着各个材料层的变薄，该区域中的温度均匀性得到改善。我们进一步表明，在主动冷却模式下使用时，横向热电设备的有效导热性能可能优于纯铜或铝制成的散热器，这表明横向热电设备在电子冷却等应用中可能具有潜力。

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