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Boric acid as fuel additive - Friction experiments and reflections around its effect on fuel saving
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.ORCID iD: 0000-0002-4301-8038
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.ORCID iD: 0000-0003-2704-5447
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.ORCID iD: 0000-0002-3955-5746
2018 (English)In: Tribology International, ISSN 0301-679X, E-ISSN 1879-2464, Vol. 128, p. 302-312Article in journal (Refereed) Published
Abstract [en]

This paper investigates the friction reducing properties and fuel saving potential of a boric acid based fuel additive with remarkably promising results in field tests. The effect of normal load and sliding velocity on the friction behavior was studied with a reciprocating model test developed to mimic the dual lubrication from the fuel additive and the engine oil. Substantial friction reductions were achieved when repeatedly spraying the fuel additive on base oil lubricated surfaces. The friction energy loss was reduced by up to 76% compared to references without the fuel additive. We present combinations of assumptions regarding the fuel saving potential of this friction reduction that, if correct, explain the observed fuel efficiency improvements found in field tests.

Place, publisher, year, edition, pages
2018. Vol. 128, p. 302-312
Keywords [en]
Fuel additive, Friction, Lubrication, Energy
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Identifiers
URN: urn:nbn:se:uu:diva-366936DOI: 10.1016/j.triboint.2018.07.004ISI: 000444929200030OAI: oai:DiVA.org:uu-366936DiVA, id: diva2:1266567
Available from: 2018-11-28 Created: 2018-11-28 Last updated: 2019-09-17

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Larsson, ElinOlander, PetraJacobson, Staffan

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Tribology (Interacting Surfaces including Friction, Lubrication and Wear)

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