DPM Dispersion Inside a Single Straight Entry Using Dynamic Mesh Model

Details

• Personal Author:
  Lan H ; Li Y ; Thiruvengadam M ; Tien JC ; Zheng Y
• Description:
  Three-dimensional simulations of diesel particulate matter (DPM) distribution inside a single straight entry for the Load-Haul-Dump loader (LHD)-truck loading and truck hauling operations were conducted by using ANSYS FLUENT computational fluid dynamics software. The loading operation was performed for a fixed period of 3 min. The dynamic mesh technique in FLUENT was used to study the impact of truck motion on DPM distribution. The resultant DPM distributions are presented for the cases when the truck were driving upstream and downstream of the loading face. Interesting phenomena were revealed in the study including the piston effect, layering of DPM in the roof region, and backflow of diesel exhaust against ventilation. The results from the simulation can be used to determine if the areas inside the face area and straight entry exceed the current U.S. regulatory requirement for DPM concentration (>160 µg/m3). This research can guide the selection of DPM reduction strategies and improve the working practices for the underground miners. [Description provided by NIOSH]
• Subjects:
  Automobiles Occupational Health Particulate Matter Safety Vehicle Emissions Ventilation
• Keywords:
  3D Author Keywords: CFD Backflow Buoyancy Effect Diesel Emissions Diesel Exhaust DPM Dynamic Meshing Haulage Vehicles Layering Of DPM Motor Vehicles Particulates Piston Effect Three Dimensional Trucking

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• ISSN:
  2095-8293
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; Missouri ; OSHA Region 7 ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  234-244
• Volume:
  4
• Issue:
  3
• NIOSHTIC Number:
  nn:20050373
• Citation:
  Int J Coal Sci Technol 2017 Sep; 4(3):234-244
• Contact Point Address:
  Yi Zheng, Missouri University of Science and Technology, Rolla, MO 65409
• Email:
  yzz59@mst.edu
• Federal Fiscal Year:
  2017
• Performing Organization:
  Missouri University of Science & Technology, Rolla
• Peer Reviewed:
  True
• Start Date:
  20040901
• Source Full Name:
  International Journal of Coal Science & Technology
• End Date:
  20100830
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:4044e7c87169a61c50f2ba1e4ad7c0630826ff4be7d6659c8e2d3b37a5761d14b0abe8f77a8bf10e4a4ee425d3feefb4436c63dee9abc5f7f455cc4f9569b6a8
• Download URL:
  https://stacks.cdc.gov/view/cdc/210747/cdc_210747_DS1.pdf
• File Type:
  [PDF - 2.07 MB ]