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Airborne Wear Particles from Dry Clutches

Hjelm, Rikard LU ; Wahlström, Jens LU orcid ; Yenibayrak, Isa ; Sabani, Driton ; Runsten, Paula and Lyu, Yezhe LU orcid (2022) In Atmosphere 13(10).
Abstract

A significant part of non-exhaust particle emissions in cities comes from the wear of vehicle components. Several studies on airborne particles from the wear of disc brakes and tires have been completed. However, few publications can be found in the scientific literature regarding airborne emissions from dry clutches used in road vehicles. With this in mind, this preliminary study designs a clutch tribometer for the generation of airborne wear particles in a controlled environment. The number concentration and the size distribution of airborne wear particles generated from a typical dry clutch used in passenger cars are investigated. The tests are run at a constant rotational speed, and normal load. The results show that the particle... (More)

A significant part of non-exhaust particle emissions in cities comes from the wear of vehicle components. Several studies on airborne particles from the wear of disc brakes and tires have been completed. However, few publications can be found in the scientific literature regarding airborne emissions from dry clutches used in road vehicles. With this in mind, this preliminary study designs a clutch tribometer for the generation of airborne wear particles in a controlled environment. The number concentration and the size distribution of airborne wear particles generated from a typical dry clutch used in passenger cars are investigated. The tests are run at a constant rotational speed, and normal load. The results show that the particle number concentration from dry clutches exhibits a running-in period and a steady state, similar to the particle emissions from disc brake contact. A significant number of nanoparticles (aerodynamic diameter < 100 nm) are emitted from the dry clutch contact.

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Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
airborne wear particles, clutch, nanoparticles, number concentration, particulate matter concentration, size distribution
in
Atmosphere
volume
13
issue
10
article number
1700
publisher
MDPI AG
external identifiers
  • scopus:85140448957
ISSN
2073-4433
DOI
10.3390/atmos13101700
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2022 by the authors.
id
42768f7c-b502-45e9-8680-68baf2b06a57
date added to LUP
2022-11-07 07:15:13
date last changed
2023-10-05 11:33:39
@article{42768f7c-b502-45e9-8680-68baf2b06a57,
  abstract     = {{<p>A significant part of non-exhaust particle emissions in cities comes from the wear of vehicle components. Several studies on airborne particles from the wear of disc brakes and tires have been completed. However, few publications can be found in the scientific literature regarding airborne emissions from dry clutches used in road vehicles. With this in mind, this preliminary study designs a clutch tribometer for the generation of airborne wear particles in a controlled environment. The number concentration and the size distribution of airborne wear particles generated from a typical dry clutch used in passenger cars are investigated. The tests are run at a constant rotational speed, and normal load. The results show that the particle number concentration from dry clutches exhibits a running-in period and a steady state, similar to the particle emissions from disc brake contact. A significant number of nanoparticles (aerodynamic diameter &lt; 100 nm) are emitted from the dry clutch contact.</p>}},
  author       = {{Hjelm, Rikard and Wahlström, Jens and Yenibayrak, Isa and Sabani, Driton and Runsten, Paula and Lyu, Yezhe}},
  issn         = {{2073-4433}},
  keywords     = {{airborne wear particles; clutch; nanoparticles; number concentration; particulate matter concentration; size distribution}},
  language     = {{eng}},
  number       = {{10}},
  publisher    = {{MDPI AG}},
  series       = {{Atmosphere}},
  title        = {{Airborne Wear Particles from Dry Clutches}},
  url          = {{http://dx.doi.org/10.3390/atmos13101700}},
  doi          = {{10.3390/atmos13101700}},
  volume       = {{13}},
  year         = {{2022}},
}