SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2018, Vol. 26 ›› Issue (1): 152-158.DOI: 10.1016/j.cjche.2017.06.011

• Chemical Engineering Thermodynamics • Previous Articles     Next Articles

Experimental investigation and development of new correlation for influences of temperature and concentration on dynamic viscosity of MWCNT-SiO2 (20-80)/20W50 hybrid nano-lubricant

Kazem Motahari1, Mohammad Abdollahi Moghaddam2, Mojtaba Moradian1   

  1. 1 Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran;
    2 Young Researchers and Elite Club, Malayer Branch, Islamic Azad University, Malayer, Iran
  • Received:2017-02-15 Revised:2017-06-05 Online:2018-03-01 Published:2018-01-28
  • Contact: Mohammad Abdollahi Moghaddam,E-mail address:abdollahimoghadam.m@gmail.com

Experimental investigation and development of new correlation for influences of temperature and concentration on dynamic viscosity of MWCNT-SiO2 (20-80)/20W50 hybrid nano-lubricant

Kazem Motahari1, Mohammad Abdollahi Moghaddam2, Mojtaba Moradian1   

  1. 1 Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran;
    2 Young Researchers and Elite Club, Malayer Branch, Islamic Azad University, Malayer, Iran
  • 通讯作者: Mohammad Abdollahi Moghaddam,E-mail address:abdollahimoghadam.m@gmail.com

Abstract: In current research, MWCNT-SiO2/oil hybrid nano-lubricant viscosity is experimentally examined. By dispersing 0.05%, 0.1%, 0.2%, 0.4%, 0.8% and 1% volume of MWCNTs and SiO2 nanoparticle into the engine oil SAE 20W50, the temperature and solid volume fraction consequences were studied. At 40 to 100℃ temperature, the viscosities were assessed. The results indicated Newtonian behavior for the hybrid nano-lubricant. Moreover, solid volume fraction augmentation and temperature enhanced the viscosity enhancement of hybrid nano-lubricant. At highest solid volume fraction and temperature, nano-lubricant viscosity was 171% greater compared to pure 20W50. Existed models lack the ability to predict the hybrid nano-lubricant viscosity. Thus, a new correlation regarding solid volume fraction and temperature was suggested with R-squared of 0.9943.

Key words: Hybrid nano-lubricant, Dynamic viscosity, Temperature, Solid volume fraction, New correlation

摘要: In current research, MWCNT-SiO2/oil hybrid nano-lubricant viscosity is experimentally examined. By dispersing 0.05%, 0.1%, 0.2%, 0.4%, 0.8% and 1% volume of MWCNTs and SiO2 nanoparticle into the engine oil SAE 20W50, the temperature and solid volume fraction consequences were studied. At 40 to 100℃ temperature, the viscosities were assessed. The results indicated Newtonian behavior for the hybrid nano-lubricant. Moreover, solid volume fraction augmentation and temperature enhanced the viscosity enhancement of hybrid nano-lubricant. At highest solid volume fraction and temperature, nano-lubricant viscosity was 171% greater compared to pure 20W50. Existed models lack the ability to predict the hybrid nano-lubricant viscosity. Thus, a new correlation regarding solid volume fraction and temperature was suggested with R-squared of 0.9943.

关键词: Hybrid nano-lubricant, Dynamic viscosity, Temperature, Solid volume fraction, New correlation