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首页> 外文期刊>Energy Conversion & Management >Performance improvement of a four-terminal thermal amplifier with multiple energy selective tunnels
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Performance improvement of a four-terminal thermal amplifier with multiple energy selective tunnels

机译：具有多个能量选择隧道的四端热放大器的性能改进

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摘要

A new model of the energy selective electron (ESE) device composed of four electron reservoirs and four energy filters is proposed. The device can work as a thermal amplifier, which may be equivalent to a coupling system consisting of two three-electron-reservoir heat pumps. Expressions for the heat-pumping rate (HPR) and coefficient of performance (COP) of the device are analytically derived through the heat flows of two-terminal ESE devices. The maximum HPR and COP are calculated. It is found that the maximum HPR of the coupling system can attain 2 times of that of a three-electron-reservoir heat pump while its COP is still equal to that of a three-electron-reservoir heat pump. Moreover, the effects of the chemical potentials of electron reservoirs, central levels of energy filters, half width at half maximum of energy filters on the HPR and COP of the device are discussed in detail. The optimal configuration of the device is determined. The cut-off value of the half width at half maximum of energy filters is calculated. The optimum selection criteria of main parameters are provided.
机译：提出了一种由四个电子储层和四个能量过滤器组成的能量选择电子（ESE）装置的新模型。该设备可以用作热放大器，其等效于由两个三电子储层热泵组成的耦合系统。通过两端ESE设备的热流来分析得出设备的热泵率（HPR）和性能系数（COP）的表达式。计算最大HPR和COP。已经发现，耦合系统的最大HPR可以达到三电子储热泵的两倍，而它的COP仍等于三电子储热泵的COP。此外，还详细讨论了电子储存器的化学势，能量过滤器的中心高度，能量过滤器的一半宽度，一半最大值对设备的HPR和COP的影响。确定设备的最佳配置。计算能量滤波器的一半最大一半宽度的截止值。提供了主要参数的最佳选择标准。

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