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Friction and wear performance analysis of hydrofluoroether-7000 refrigerant as lubricant.

Bhutta, M. and Khan, Z. A., 2019. Friction and wear performance analysis of hydrofluoroether-7000 refrigerant as lubricant. Tribology international, 139 (November), 36-54.

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DOI: 10.1016/j.triboint.2019.06.028

Abstract

The disquiet about global warming has triggered the formulation and introduction of new generation of refrigerants. Hydrofluoroethers (HFEs) are within the family of newly developed environmentally friendly refrigerants with a wide range of application areas. Hydrofluoroethers reportedly have better heat transfer and thermodynamic properties. In addition to an understanding and knowledge of the thermodynamic properties of refrigerants, it is essential to understand the tribological properties of refrigerants within the context of sustainable development. Tribo-performance of refrigerants applied in refrigeration, air-conditioning and energy systems directly influences the durability, reliability and cost effectiveness of the system. HFE-7000 has considerable potential for engineering applications in green energy and low carbon technologies. In this research, a detailed investigation has been performed to assess friction and wear performance of HFE-7000 (HFE-347mcc3). HFE-7000 has been employed as lubricants. Experimental results indicate the formation of tribo-films on the topmost surfaces. Energy-Dispersive X-ray Spectroscopic (EDS) and X-ray Photoelectron Spectroscopic (XPS) analyses on the tested samples revealed significant presence of oxygenated and fluorinated anti-wear tribo-films. These oxygen and fluorine containing tribo-layers prevent metal to metal contact and contribute to the reduction of friction and wear

Item Type:Article
ISSN:0301-679X
Uncontrolled Keywords:Environment-friendly refrigerants; Tribo-films; Sliding contact; Low carbon technology; EDS; XPS
Group:Faculty of Science & Technology
ID Code:32390
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:14 Jun 2019 10:25
Last Modified:15 Jun 2020 01:08

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