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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sivebæk, Ion Marius
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2023Wear and friction of PEEK composites, dry or lubricatedcitations
- 2022Wear and friction of PEEK composites, dry or lubricated
- 2021Dynamic mechanical analysis as a predictor for slip resistance and traction in footwearcitations
- 2020Role of lattice trapping for sliding frictioncitations
- 2020Cylinder-flat-surface contact mechanics during slidingcitations
- 2017Editorial
- 2017Editorial: Special Issue: Selected conference papers from the Nord-Trib 2014 conference
- 2015Preface to NORDTRIB 2014
- 2011Asperity deformation during running-in
- 2010Velocity Dependence of Friction of Confined Hydrocarbonscitations
- 2010Asperity deformation during running-in
- 2009Velocity dependence of friction of confined polymers
- 2008On the origin of Amonton’s friction lawcitations
- 2008The effect of gasses on the viscosity of dimethyl ethercitations
- 2007The viscosity of dimethyl ethercitations
- 2006New Tribotester For Polymeric Materials
- 2006A Preliminary Study Of The Effect Of Some Pressurising Gasses On The Viscosity Of Dimethyl Ether
- 2003On the nature of the static friction, kinetic friction and creepcitations
- 2003Lubrication and wear in diesel engine injection equipment fuelled by dimethyl ether (DME)
- 2002Dimethyl Ether (DME) - Development and Test of the New Volatile Fuel Tribo-Tester VFTT
- 2002The influence of molecule size and structure on the lubricity of liquids: An experimental study
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article
The effect of gasses on the viscosity of dimethyl ether
Abstract
Dimethyl ether (DME) has been recognised as a clean substitute for diesel oil as it does not form soot during combustion. DME has a vapour pressure of 6 bar at 25 degrees C; so pressurisation is necessary to keep DME liquid at ambient temperature. Inert gases are good candidates as pressurising media, but their effect on DME viscosity is unknown. Argon (Ar), nitrogen (NA carbon dioxide (CO2), hydrogen (H-2) and propane (C3H8) have been investigated at pressure levels of 12-15 bar. A Cannon-Manning semi-micro capillary glass viscometer, size 25, enclosed in a cylindrical pressure container, of glass, submerged completely in a constant temperature bath, has been used. A distinct reduction of efflux times was found only for the gas, CO2. The reduction in efflux time was about 9%. The kinematic viscosity of pure DME was determined to be: 0.188 +/- 0.001 cSt, 25 degrees C. A previously reported viscosity of pure DME has been corrected for the surface tension effect. Viscosity determination was initially based on a direct comparison of efflux times of DME with that of distilled water. The calculation gave a revised viscosity of 0.186 +/- 0.002 cSt, 25 degrees C, consistent with the above experimental result.