Abstract

For the first time, the rheological and thermophysical properties of stable nanofluids based on water and ethylene glycol modified by the DND-CNT hybrid material and obtained without surfactants have been investigated. It was found that at the maximum concentration of the DND-CNT hybrid material 0.5 wt. % for water and 0.3 wt. % for ethylene glycol was increased in thermal conductivity at 50$°\mathrm{C}$ to 84% and 44%, respectively, without changing the dynamic viscosity. It is shown that the use of a hybrid material can reduce the freezing point by 11$°\mathrm{C}$ in the case of water and by 7$°\mathrm{C}$ in the case of ethylene glycol.

中文翻译：

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复合爆轰纳米金刚石-碳纳米管复合材料改性水基纳米流体的导热系数和热容

摘要

首次研究了基于水和乙二醇的稳定纳米流体的流变学和热物理性质，该纳米流体由 DND-CNT 杂化材料改性并在没有表面活性剂的情况下获得。发现在 DND-CNT 杂化材料的最大浓度为 0.5 wt. % 为水和 0.3 wt. % 乙二醇的导热系数在 50 时增加$°\mathrm{C}$在不改变动态粘度的情况下，分别达到 84% 和 44%。结果表明，使用混合材料可以将冰点降低 11$°\mathrm{C}$在水的情况下，由 7$°\mathrm{C}$在乙二醇的情况下。