This work presents experimental results on the isobaric heat capacity of ethylene glycol (EG) based nanofluids containing three types of nitride nanoparticles: aluminum nitride (AlN), silicon nitride (Si₃N₄) and titanium nitride (TiN). The densities of the nanofluids were also investigated in this study. Each type of material was used in two different sizes of nanoparticles and with various values of specific surface area. Temperature-modulated differential scanning calorimetry and vibrating tube techniques were used, and measurements were performed at three different temperatures: 288.15~K, 298.15 K and 308.15~K. The obtained experimental results were compared with the predictions of theoretical models, and absolute average deviations were calculated. It was demonstrated that the fraction of nanoparticles strongly affects isobaric heat capacity and density, whilst the size of the particles does not significantly impact these properties.

这项工作提供了基于乙二醇（EG）的纳米流体的等压热容量的实验结果，该纳米流体包含三种类型的氮化物纳米颗粒：氮化铝（AlN），氮化硅（Si ₃ N ₄）和氮化钛（TiN）。在这项研究中还研究了纳米流体的密度。每种类型的材料都用于两种不同大小的纳米颗粒，并且具有不同的比表面积值。使用温度调制差示扫描量热法和振动管技术，并在三种不同温度下进行测量：288.15〜K，298.15 K和308.15〜K。将获得的实验结果与理论模型的预测结果进行比较，并计算出绝对平均偏差。已经证明，纳米颗粒的分数强烈影响等压热容和密度，而颗粒的尺寸并未显着影响这些性能。