期刊
JOURNAL OF AEROSOL SCIENCE
卷 124, 期 -, 页码 30-40出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jaerosci.2018.07.005
关键词
Laboratory measurements; Morphological study; Non-exhaust emissions; Tire wear particles (TWPs); Tire wear simulator
类别
资金
- Center for Environmentally Friendly Vehicles as a Global-Top Project of the Ministry of Environment of Korea
- Korea Institute of Machinery and Materials (KIMM) [NK212E]
- Korea Environmental Industry & Technology Institute (KEITI) [ARQ201606087003] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Council of Science & Technology (NST), Republic of Korea [NK212E] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
An experimental study of the non-exhaust emission characteristics of fire wear particulate matter (PM) was performed using a fire wear simulator. Building upon previous studies of PM emissions from non-exhaust sources, the total amount of fire wear particles (TWPs) was measured and their morphological and elemental characteristics were investigated. The peak size of TWPs generated at a constant speed of 80 km/h was around 2 mu m. Under harsh friction conditions, the mean diameter increased and the size distribution broadened. In addition, the number concentration of ultrafine particles increased significantly. Based on morphological study, we divided TWPs into five categories: sausage-like particles, micron-sized spherical particles, torn debris, ultrafine particles, and aggregates of ultrafine particles. The results of energy dispersive spectroscopy analysis showed that ultrafine particles from fire tread were composed of carbon, silica, and sulfur.
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