Performance evaluation on vacuum pumps using nanolubricants

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• 作者：Yeou-Feng Lue ; Yu-Chun Hsu ; Tun-Ping Teng
• 关键词：Alumina (Al2O3) ; Electricity consumption ; Nanovacuum ; pump lubricants (NVALs) ; Tribological performance ; Vacuum pump
• 刊名：Journal of Mechanical Science and Technology
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：30
• 期：9
• 页码：4275-4283
• 全文大小：2,214 KB
• 刊物类别：Engineering
• 刊物主题：Mechanical Engineering
  Structural Mechanics
  Control Engineering
  Industrial and Production Engineering
  
• 出版者：The Korean Society of Mechanical Engineers
• ISSN：1976-3824
• 卷排序：30

文摘

This study produced alumina (Al₂O₃) nanovacuum-pump lubricants (NVALs) by involving the dispersion of Al₂O₃ nanoparticles in a vacuum-pump lubricant (VAL) with oleic as a dispersant. Experiments were conducted to evaluate the suspension performance, thermal conductivity, viscosity, specific heat, tribological performance and vacuum-pump performance of the NVALs. The experimental results obtained from the vacuum-pump performance tests show that the NVALs with Al₂O₃ concentration of 0.2 wt.% and oleic concentration of 0.025 wt.% yielded the lowest electricity consumption, conserving 2.39% of electricity compared with the VAL. No marked difference was observed between the temperatures of the vacuum pump using VAL and NVAL. Furthermore, evacuation (i.e., the minimal pressure of -99.5 kPa) was reached faster by the vacuum pump with the NVALs, and the evacuation time could be reduced by 4.91% under optimal conditions. In addition, the vacuum pump with the NVALs exhibited superior overall effectiveness under relatively lower ambient temperatures.