期刊
POWDER TECHNOLOGY
卷 383, 期 -, 页码 56-64出版社
ELSEVIER
DOI: 10.1016/j.powtec.2021.01.005
关键词
Hybrid nanofluid; MWCNT; TiO2; 20 W-40 engine oil; Thermal conductivity; Experimental study
资金
- National Natural Science Foundation of China [51775115]
- Special Fund for Talents of Gansu Agricultural University [GAU-KYQD-2018-29,2017RCZX-21, 2017RCZX-35]
Experimental measurements and tests showed that loading MWCNT-TiO2 into SAE 20 W-40 can improve thermal conductivity, with a maximum increase of 24.42%. The number of dispersed nanoparticles has a significant effect on thermal conductivity.
In this study many experimental measurements were conducted to examine the efficacy of loading MWCNT-TiO2 into SAE 20 W-40 on thermal conductivity (k). Through applying FESEM and XRD tests, molecular structures of nanoparticle were inspected and using two-step method, nanofluid samples at 0.1, 0.2, 0.4 and 0.8 vol% were prepared. After passing DLS and zeta potential tests, k(MWCNT-TiO2/SAE20W-40) was measured using KD2 Pro at 20-70 degrees C and 0.1-0.8 vol%. Based on results, it was observed that k(MWCNT-TiO2/SAE20W-40) was higher than k(SAE20W-40) and therefore inserting MWCNT and TiO2 into 20 W-40 has a positive effect on thermal conductivity up to 24.42%. Therefore, the number of dispersed nanoparticles has a considerable effect on k(SAE 20W-40) so that at 0.1 and 0.8 vol%, it was improved by 3% and 24.42%, respectively. Although k(SAE 20W-40) declines by 5.75% with increasing temperature from 20 to 70 degrees C. (C) 2021 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据