The Development of a Diesel Injector Experiment to Study the Combined Effects of Oxidation and Shear on Lubricating Oil Viscosity

An experimental test rig was needed to apply high rates of shear strain on lubricating oil molecules and study the effects these may have on the degradation of the lubricant. The result was the development of a diesel injection device where the oil could be stressed and cycled effectively. Viscosity measurements were used to determine whether or not the oil had degraded. A change in viscosity in high molecular weight compounds is evidence of chain scission. The results show that cycling a 128 ml volume of oil 12 times has no effect on fresh, unaltered lubricating oils, even at low oxidation times up until 48 hours. However, the results show that heavily degraded lubricating oils near and beyond their usability limit, do exhibit a viscosity loss of up to 0.043 Pa·s; a 19% change.

Name thesis:degree_name

Master of Applied Science (M.App.Sc.)

Level thesis:degree_level

Master's

Discipline thesis:degree_discipline

Engineering, Aerospace

Grantor dc:publisher

Carleton University

Year dc:date.issued

2015

Author dc:creator

• Laforge, Frederic

Statement dc:rights

• Copyright © 2015 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.

Language dc:language.iso

en

DOI

10.22215/etd/2015-11205

OAI identifier oai:identifier

oai:carleton.scholaris.ca:20.500.14718/39339