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Development of a brake wear particle collector utilizing a forced-floating concept for Euro-7 compliance.

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Title: Development of a brake wear particle collector utilizing a forced-floating concept for Euro-7 compliance.
Authors: Woo, Sang-Hee1 (AUTHOR), Kim, Minki1 (AUTHOR), Jang, Hyoungjoon1 (AUTHOR), Yu, Seungwoo2 (AUTHOR), Kim, Daehyun2 (AUTHOR), Kim, Ghuiyeon2 (AUTHOR), Lee, Seokhwan1 (AUTHOR) shlee@kimm.re.kr
Source: Aerosol Science & Technology. Mar2026, Vol. 60 Issue 3, p197-212. 16p.
Subjects: Emission control, Electrostatic precipitation, Emission standards, Particulate matter, Mechanical efficiency, Flotation, Computer simulation, Friction
Abstract: The upcoming Euro-7 emission standard, set to take effect in 2026, includes restrictions on brake-wear particles (BWP) emissions. To comply with this regulation, various BWP emission-reduction devices are currently under development. In this study, we developed a BWP collector that employs a forced-floating concept to achieve high particle collection efficiency with a relatively low intake airflow. The proposed particle collector consists of two main components: a suction section based on the forced-floating concept and a collection section utilizing electrostatic precipitation. Performance evaluations were conducted under laboratory conditions using a brake dynamometer and under real-world driving conditions using an actual vehicle. Additionally, computational simulations were performed to analyze the trajectory of the ingested particles and airflow distribution around the collector. Laboratory measurements using low-metallic (LM) brake pads showed that the BWP PM10 emission factor decreased from 14.72 to 6.03 mg/km/veh, representing a 59.1% reduction. On-road driving tests also demonstrated a reduction in the BWP PM10 emission factor from 12.13 to 4.93 mg/km/veh, corresponding to a 59.4% reduction, which was consistent with the laboratory experimental results. Computational simulations confirmed that the BWPs generated at the brake disk–pad interface were effectively collected, as intended by the forced-floating concept. Copyright © 2025 American Association for Aerosol Research [ABSTRACT FROM AUTHOR]
Copyright of Aerosol Science & Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
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DbLabel: Engineering Source
An: 191178584
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Development of a brake wear particle collector utilizing a forced-floating concept for Euro-7 compliance.
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  Data: <searchLink fieldCode="AR" term="%22Woo%2C+Sang-Hee%22">Woo, Sang-Hee</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Minki%22">Kim, Minki</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jang%2C+Hyoungjoon%22">Jang, Hyoungjoon</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yu%2C+Seungwoo%22">Yu, Seungwoo</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Daehyun%22">Kim, Daehyun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Ghuiyeon%22">Kim, Ghuiyeon</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lee%2C+Seokhwan%22">Lee, Seokhwan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> shlee@kimm.re.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Aerosol+Science+%26+Technology%22">Aerosol Science & Technology</searchLink>. Mar2026, Vol. 60 Issue 3, p197-212. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Emission+control%22">Emission control</searchLink><br /><searchLink fieldCode="DE" term="%22Electrostatic+precipitation%22">Electrostatic precipitation</searchLink><br /><searchLink fieldCode="DE" term="%22Emission+standards%22">Emission standards</searchLink><br /><searchLink fieldCode="DE" term="%22Particulate+matter%22">Particulate matter</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+efficiency%22">Mechanical efficiency</searchLink><br /><searchLink fieldCode="DE" term="%22Flotation%22">Flotation</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Friction%22">Friction</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The upcoming Euro-7 emission standard, set to take effect in 2026, includes restrictions on brake-wear particles (BWP) emissions. To comply with this regulation, various BWP emission-reduction devices are currently under development. In this study, we developed a BWP collector that employs a forced-floating concept to achieve high particle collection efficiency with a relatively low intake airflow. The proposed particle collector consists of two main components: a suction section based on the forced-floating concept and a collection section utilizing electrostatic precipitation. Performance evaluations were conducted under laboratory conditions using a brake dynamometer and under real-world driving conditions using an actual vehicle. Additionally, computational simulations were performed to analyze the trajectory of the ingested particles and airflow distribution around the collector. Laboratory measurements using low-metallic (LM) brake pads showed that the BWP PM10 emission factor decreased from 14.72 to 6.03 mg/km/veh, representing a 59.1% reduction. On-road driving tests also demonstrated a reduction in the BWP PM10 emission factor from 12.13 to 4.93 mg/km/veh, corresponding to a 59.4% reduction, which was consistent with the laboratory experimental results. Computational simulations confirmed that the BWPs generated at the brake disk–pad interface were effectively collected, as intended by the forced-floating concept. Copyright © 2025 American Association for Aerosol Research [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Aerosol Science & Technology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/02786826.2025.2601179
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      – Code: eng
        Text: English
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        PageCount: 16
        StartPage: 197
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      – SubjectFull: Emission control
        Type: general
      – SubjectFull: Electrostatic precipitation
        Type: general
      – SubjectFull: Emission standards
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      – SubjectFull: Particulate matter
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      – SubjectFull: Mechanical efficiency
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      – SubjectFull: Flotation
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      – SubjectFull: Computer simulation
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      – SubjectFull: Friction
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      – TitleFull: Development of a brake wear particle collector utilizing a forced-floating concept for Euro-7 compliance.
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              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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