Experimental assessment of tio2-poe nanolubricant stability and optimization process using one factor at a time (OFAT) based on response surface methodology

IF 1.1 Q3 Engineering

Journal of Thermal Engineering Pub Date : 2023-04-18 DOI:10.18186/thermal.1285208

Agus Nugroho, R. Mamat, Zhang BO1, Wan HAMZAH AZMI, T. Yusaf, F. Khoerunnisa

引用次数: 0

Abstract

This paper aims to elaborate on the results of the experimental assessment of the stability of TiO2-Polyester (POE) nanolubricant. There are six samples in this investigation, with each concentration of 0.02 vol%. The TiO2 nanoparticles were dispersed into synthetic lubricant POE for 30 min using a magnetic stirrer. Then, the samples were sonicated for 0, 40, 60, 80, 100, and 120 min, respectively—the visual observation for 720 hours, UV visible spectrophotometry, and absolute zeta potential employed to investigate the samples. After data acquisition, optimization with one factor at a time (OFAT) is applied to determine the most optimum sample. The results show that the sample with sonication treatment for 120 min is the most optimum. This finding was confirmed by the absorbance ratio value of 0.95 with an -80.48mV zeta potential. The output of ANOVA analysis shows the regression coefficient is 0.9999, and the adjusted R2 value is 0.9998 with a p-value that is much smaller than 0.05, which is

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基于响应面法的一因素一次法（OFAT）对tio2-poe纳米润滑剂稳定性和优化过程的实验评估

本文旨在阐述二氧化钛-聚酯(POE)纳米润滑剂稳定性的实验评估结果。本研究共有6个样品，每个样品的浓度为0.02 vol%。将TiO2纳米粒子分散到合成润滑油POE中，用磁力搅拌器搅拌30 min。然后分别超声处理0、40、60、80、100、120 min，目视观察720 h，采用紫外可见分光光度法和zeta绝对电位法对样品进行考察。数据采集完成后，采用单因素优化法(OFAT)确定最优样本。结果表明，超声处理120 min的样品效果最佳。吸收比为0.95,zeta电位为-80.48mV，证实了这一发现。方差分析的输出显示回归系数为0.9999，调整后的R2值为0.9998,p值远小于0.05，即

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来源期刊

Journal of Thermal Engineering THERMODYNAMICS-

CiteScore

2.40

自引率

18.20%

发文量

审稿时长

4 weeks

期刊介绍： Journal of Thermal Enginering is aimed at giving a recognized platform to students, researchers, research scholars, teachers, authors and other professionals in the field of research in Thermal Engineering subjects, to publish their original and current research work to a wide, international audience. In order to achieve this goal, we will have applied for SCI-Expanded Index in 2021 after having an Impact Factor in 2020. The aim of the journal, published on behalf of Yildiz Technical University in Istanbul-Turkey, is to not only include actual, original and applied studies prepared on the sciences of heat transfer and thermodynamics, and contribute to the literature of engineering sciences on the national and international areas but also help the development of Mechanical Engineering. Engineers and academicians from disciplines of Power Plant Engineering, Energy Engineering, Building Services Engineering, HVAC Engineering, Solar Engineering, Wind Engineering, Nanoengineering, surface engineering, thin film technologies, and Computer Aided Engineering will be expected to benefit from this journal’s outputs.