The investigation into the tribological impact of alternative fuels on engines based on acoustic emission
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OA Location
Author(s)
Wei, Nasha
Chen, Zhi
Xu, Yuandong
Gu, Fengshou
Ball, Andrew
Type
Journal Article
Abstract
The wide use of different alternative fuels (AL) has led to challenges to the internal combustion (IC) engine tribology. To avoid any unpredicted damages to lubrication joints by using AL fuels, this study aims to accurately evaluate the influences of alternative fuels on the tribological behavior of IC engines. Recent achievements of the acoustic emission (AE) mechanism in sliding friction provide an opportunity to explain the tribological AE responses on engines. The asperity–asperity–collision (AAC) and fluid–asperity–shearing (FAS) mechanisms were applied to explain the AE responses from the piston ring and cylinder liner system. A new adaptive threshold–wavelet packets transform (WPT) method was developed to extract tribological AE features. Experimental tests were conducted by fueling three fuels: pure diesel (PD), biodiesel (BD), and Fischer–Tropsch (F–T) diesel. The FAS–AE indicators of biodiesel and F–T diesel show a tiny difference compared to the baseline diesel using two types of lubricants. Biodiesel produces more AAC impacts with higher AAC–AE responses than F–T diesel, which occurs at high speeds due to high temperatures and more particles after combustion than diesel. This new algorithm demonstrated the high performance of using AE signals in monitoring the tribological impacts of alternative fuels on engines.
Date Issued
2021-04-20
Date Acceptance
2021-04-08
Citation
Energies, 2021, 14 (8), pp.1-20
ISSN
1996-1073
Publisher
MDPI AG
Start Page
1
End Page
20
Journal / Book Title
Energies
Volume
14
Issue
8
Copyright Statement
© 2021 by the authors.
Licensee MDPI, Basel, Switzerland.
This article is an open access article
distributed under the terms and
conditions of the Creative Commons
Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Licensee MDPI, Basel, Switzerland.
This article is an open access article
distributed under the terms and
conditions of the Creative Commons
Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000644118200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Energy & Fuels
alternative fuel
acoustic emission
wavelet packets transform
tribological impacts
asperity–
asperity collision
fluid-asperities shearing
WEAR CHARACTERISTICS
FAULT-DETECTION
BIODIESEL
PERFORMANCE
FRICTION
OIL
GENERATION
BEARINGS
Publication Status
Published
Article Number
ARTN 2315
Date Publish Online
2021-04-20