电排列CNFs中的焦耳效应:对液体的快速加热

IF 2.5 4区 工程技术 Q3 CHEMISTRY, PHYSICAL
A. P. Franco-Bacca, I. Y. Forero-Sandoval, N. W. Pech-May, J. J. Alvarado-Gil, F. Cervantes-Alvarez
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引用次数: 0

摘要

从环境和经济的角度来看,有效利用供暖系统是必要的。本文分析了恒定交流电场作用下分散在乙二醇中的碳纳米纤维的焦耳效应和热输运特性。我们测试了从0.1%到1%重量分数浓度的碳纳米纤维。分析了温度和电流随时间的变化规律。利用焦耳定律方程对产生的热量进行了量化,并估计了热导率作为电压施加前后浓度的函数。研究了温度升高与纳米碳纤维浓度和电压的关系。我们的工作探索了将分散在乙二醇中的纳米碳纤维用于开发智能流体的可行性,该流体可用于热生成和释放,并可应用于热管理系统,例如用于除冰的系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Joule Effect in Electrically Aligned CNFs: Toward Fast Heating of Liquids

Efficient use of heating systems is necessary from an environmental and economic perspective. This work analyses the Joule effect and the thermal transport properties of carbon nanofibers dispersed in ethylene–glycol aligned by applying a constant AC electric field. We tested several weight fraction concentrations from 0.1 % to 1 % wt of carbon nanofibers. The evolution of temperature and electric current as a function of time was analyzed. The amount of heat generated was quantified using Joule's law equation, and we estimated the thermal conductivity as a function of the concentration before and after the voltage application. The dependence of the temperature increase on the concentration of carbon nanofibers and electric voltage was investigated. Our work explores the viability of using carbon nanofiber dispersed in ethylene glycol in developing intelligent fluids useful for heat generation and release, with applications in heat management systems, such as those used for deicing.

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来源期刊
CiteScore
4.10
自引率
9.10%
发文量
179
审稿时长
5 months
期刊介绍: International Journal of Thermophysics serves as an international medium for the publication of papers in thermophysics, assisting both generators and users of thermophysical properties data. This distinguished journal publishes both experimental and theoretical papers on thermophysical properties of matter in the liquid, gaseous, and solid states (including soft matter, biofluids, and nano- and bio-materials), on instrumentation and techniques leading to their measurement, and on computer studies of model and related systems. Studies in all ranges of temperature, pressure, wavelength, and other relevant variables are included.
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