• Title/Summary/Keyword: 비산먼지 포집기

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A Study on the Evaluation of a Scattering Dust Collector in Vehicle-Induced Wind and Brake Caliper Locations (자동차 주행풍과 브레이크 캘리퍼 위치에 따른 비산먼지 포집기의 특성연구)

  • Son, Byeong-Rea;Ahn, Jun-Hyung;Lee, Young-Hwan;Hwang, Young-Kug
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.21 no.3
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    • pp.43-48
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    • 2022
  • A scattering dust collector in automobile brake pads was investigated in this study. The dust scattering was measured by mounting a booth with a particle counter for both the vehicle-induced wind and brake caliper locations. In addition, the collection effect of the dust scattering was analyzed using the designed dust collector. The results of this study can be used to develop an advanced dust collector and the field test modes for dust scattering in an automotive brake system.

Evaluation of the Performance of the Scattering Dust Collector Mounted on the Brake Caliper (브레이크 캘리퍼에 장착한 비산먼지 포집기의 성능 평가)

  • Deok-Ho Kim;Byeong-Rea Son
    • Journal of the Korean Society of Industry Convergence
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    • v.27 no.3
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    • pp.693-699
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    • 2024
  • The main cause of scattering dust generated by transportation equipment such as automobiles was largely due to exhaust gas from internal combustion engines in the past, but it was generally recognized that non-exhaust causes such as abrasion of the tires or brake pads were low. Accordingly, scattering dust generated by exhaust gas has consistently existed in many studies, such as technological progress and related regulations, but research on non-exhaust is relatively insignificant, and the need for research on scattering dust generated by non-exhaust is emerging. In this study, a dust collector that can be easily mounted on a caliper to collect scattering dust generated by pad wear during the brake operation of an automobile was manufactured. In this study, we developed a dust collector that is easy to mount on calipers to collect scattering dust caused by pad wear during brake operation of automobiles. According to the installation of the manufactured dust collector, the performance of scattering dust by brake operation and the temperature change characteristics of calipers according to the structure of the dust collector were evaluated.

A Comparison Study of Aerosol Samplers for PM10 Mass Concentration Measurement (PM10 질량농도 측정을 위한 시료채취기의 비교 연구)

  • Park, Ju-Myon;Koo, Ja-Kon;Jeong, Tae-Young;Kwon, Dong-Myung;Yoo, Jong-Ik;Seo, Yong-Chil
    • Journal of Korean Society of Environmental Engineers
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    • v.31 no.2
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    • pp.153-160
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    • 2009
  • A PM10 (aerodynamic diameter${\leq}$10 ${\mu}m$) sampler is used to quantify the potential human exposure to suspended particulate matter (PM) and to comply with the governmental regulation. This study was conducted to compare and evaluate the same PM10 cutpoint and different slopes between United States Environmental Protection Agency (USEPA) PM10 sampling criterion and American Conference of Governmental Industrial Hygienists/$Comit\acute{e}$ $Europ\acute{e}en$ de Normalization/International Organization for Standardization thoracic PM10 sampling criterion through theory and experiment. Four PM10 samplers according to the USEPA criterion and one RespiCon sampler in accordance with the thoracic PM10 criterion were used in the present study. In addition, one DustTrak monitor was used to measure real time PM10 mass concentrations. All six aerosol samplers were tested in a PM generation chamber using polydisperse fly ash. Theoretical mass concentrations were calculated by applying the measured particle size distribution characteristics (geometric mean = 6.6 ${\mu}m$, geometric standard deviation = 1.9) of fly ash to each sampling criterion. The measured mass concentrations through a chamber experiment were consistent with theoretical mass concentrations in that a RespiCon sampler with the thoracic PM10 criterion collected less PM than a PM10 sampler with the USEPA criterion. The overall chamber experiment results indicated, when a PM10 sampler was used as a reference sampler, that (1) a RespiCon sampler had a normalizing factor of 1.6, meaning that this sampler underestimated an average 60% of PM10 mass sampled from a PM10 sampler, and (2) a DustTrak real-time monitor using a PM10 inlet had a calibration factor of 2.1.

A Basic Study on the Generation of Tire & Road Wear Particles by Differences in Tire Wear Performance (타이어 마모성능 차이에 의한 타이어 마모입자 생성에 관한 기초 연구)

  • Kang, Tae-Woo;Kim, Hyeok-Jung
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.9 no.4
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    • pp.561-568
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    • 2021
  • In this study, in order to observe the change in the amount of Tire and Road Wear Particles and the ratio of tire components in it according to the tire wear resistance performance, carried out the evaluation by varying the vulcanization reaction design of the tire tread rubber. In addition, in order to improve the reliability of the evaluation of Tire and Road Wear Particles, the evaluation was performed indoor laboratory test equipment that simulates the condition on real driving to exclude various environmental influences including minerals, driver's habits, road surface, weather, tire structure and pattern designs. After the evaluation in closed space, it is estimated that the amount of collected Tire and Road Wear Particles is 84% compared to 100% of the tire and road wear loss weight, of which 96.4~97.7% was around the road and 2.3~3.6% was in the air. As a result of analy sis of the collected Tire and Road Wear particles, the tire component existed 63~75% in the Tire and Road Wear Particles depending on the wear resistance performance of the tire.