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Evaluating the Thermal Conductivity and Viscosity of CuO-Nanolubricants

机译：评估CuO-纳米脂磺酸的导热率和粘度

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In the presented work, thermal conductivity of CuO and its viscosity at three different weight concentrations were investigated. A two-steps method was deployed in order to sonicate successfully CuO nanolubricants samples at three different weight concentrations (0.2, 0.5, & 1 wt%). The measurements of thermal conductivity were carried out with a lab-made measurement set, which is based on a 3ω method. The obtained enhancements were 1%, 1.7% and 2.8% for 0.2, 0.5, and 1 wt.%, respectively. Viscosity was also investigated under different temperatures and it was obtained that adding CuO to the mineral oil had a slight effect on its viscosity at lower concentrations. However, the maximum increment at lower temperature for the higher concentration was 13.1%. Based on the enhancement in thermal conductivity and the low increment in viscosity, CuO nanolubricant can be recommended for enhancing the heat transfer characteristic of the refrigeration compressor
机译：在所呈现的工作中，研究了CuO的热导率及其三种不同重量浓度的粘度。部署了两步方法，以在三种不同的重量浓度（0.2,0.5和1wt％）上成功分配CuO纳米脂磺酸盐样品。通过实验室测量集进行导热率的测量，该测量集基于3Ω方法。得到的增强为0.2,0.5和1wt％的增强。％分别为1％，1.7％和2.8％。％。％。在不同温度下还研究了粘度，得到了将CuO与矿物油添加到较低浓度下的粘度略微效果。然而，较高浓度较低温度下的最大增量为13.1％。基于导热率的增强和粘度的低增量，可以推荐CuO纳米磺酸，用于增强制冷压缩机的传热特性

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