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Ultrafine Particle Formation from Wear
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Services Engineering (name changed to Building Service and Energy Systems 2012-03-01).
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Machine Elements.ORCID iD: 0000-0003-2489-0688
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.), Machine Elements.
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2010 (English)In: The International Journal of Ventilation, ISSN 1473-3315, E-ISSN 2044-4044, Vol. 9, no 1, 83-88 p.Article in journal (Refereed) Published
Abstract [en]

Much attention is given to the consequences of airborne particles on human health and well-being. Wear is one source of airborne particles and contributions in the urban environments from wheel-to-rail contacts and disc brakes cannot be neglected. Traditionally, mechanical wear has been associated with the generation of particles of diameters of some microns. However, the research described has found ultrafine particle generation from wear processes. Particle generation from wear was measured under controlled laboratory conditions. The wear was created through sliding contact in a tribometer (type "pin-on-disc") with different materials and with different sliding velocities and pressures, to represent rail traffic and automobile disc braking. Particle concentrations and size distributions in the air were determined for particle diameters from 10 nm up to more than 10 mu m. For most materials and conditions three particle size modes were found: one at 50-100 nm, one at a few hundred nm and one at a few mu m particle diameter.

Place, publisher, year, edition, pages
2010. Vol. 9, no 1, 83-88 p.
Keyword [en]
airborne particles, car brakes, generation, particle size, ultrafine, railroad, wear
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-29683ISI: 000279036000009Scopus ID: 2-s2.0-77953577918OAI: oai:DiVA.org:kth-29683DiVA: diva2:398621
Note

QC 20110218

Available from: 2011-02-18 Created: 2011-02-11 Last updated: 2017-12-11Bibliographically approved

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Olofsson, UlfSöderberg, AndersWahlström, Jens

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Olander, LarsOlofsson, UlfSundh, JonSöderberg, AndersWahlström, Jens
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Building Services Engineering (name changed to Building Service and Energy Systems 2012-03-01)Machine ElementsMachine Design (Dept.)
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