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在微通道Poiseuille流中对反应性可变粘度TiO₂-PAO纳米滑剂的热分析

Oluwole Daniel Makinde¹, Anuoluwa Esther Makinde²

¹Faculty of Military Science, Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa.

|June 28, 2023

概括

这项研究表明,添加二氧化 (TiO2) 纳米颗粒可以在微通道内增强聚烯 (PAO) 基纳米滑剂的热传递和热稳定性. 外热反应和纳米颗粒度提高了性能,而粘性消散和激活能量则降低了性能.

科学领域:

流体动力学流体动力学
热传递是一种传递热量的过程.
纳米技术纳米技术

背景情况:

微通道传热对于紧的热系统至关重要.
纳米滑剂比基础液体提供了更好的热物理性能.
了解反应性流体的行为是滑剂性能的关键.

研究的目的:

在微通道中研究反应性,可变粘度纳米滑剂的流量和热传递.
分析二氧化 (TiO2) 纳米颗粒对滑剂性能的影响.
评估各种热物理参数对热稳定性的影响.

主要方法:

为该系统推导出非线性模型方程.
使用Runge-Kutta-Fehlberg集成的射击方法获得了数值解决方案.
图形分析展示了关键参数对流量特征的影响.

主要成果:

随着外热化学动力学,生物数和TiO2纳米粒子体积分数的增加,观察到增加的努塞尔特数和热稳定性.
粘性消散和激活能量对努塞尔特数和热稳定性产生了负面影响.
可变的粘度和反应性质显著影响了流动动力学.

结论:

二氧化 (TiO2) 纳米粒子和外热反应增强了PAO纳米滑剂的热传递和稳定性.
优化纳米粒子度和反应动力学对于微通道应用至关重要.
该研究提供了对微观设备设计先进滑剂的见解.

关键词:

这是一个微通道微通道.纳米滑剂的水力动力学热分析是一种热分析.不同的粘度变量

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