Numerical Investigation of Powder Aerosolization in a Rotating Drum Apparatus

Details

• Personal Author:
  Chen H ; Evans DE ; Jog MA ; Turkevich LA
• Description:
  Essential to estimating the potential exposure from dusts of toxic, hazardous or irritant powders is the evaluation of the dustiness of the powders being handled. Dustiness is the tendency of a powder to aerosolize with a given input of energy. Evaluating dustiness of a manufactured powder can alert to a potential exposure to workers. It can also aid in the selection of manufacturing processes/operations which generate less dust for a particular substance and can provide vital information to guide selecting/creating powders which generate less dust. A widely used (but marginally understood) instrument to evaluate powder dustiness is the Rotating Drum. Using computational fluid dynamics, we have numerically investigated the flow inside the Rotating Drum dustiness tester during its operation. A complete description of the flow aerodynamics associated with operation of this instrument will assist in the interpretation of dustiness measurements conducted with this instrument. [Description provided by NIOSH]
• Subjects:
  Aerosols Dust Hazardous Substances Manufacturing And Industrial Facilities Occupational Exposure Occupational Health Safety
• Keywords:
  Aerosol Dispensers Aerosol Generators Dust Exposure Dusts Employee Exposure Hazardous Materials Manufacturing Toxic Materials
• ISSN:
  0032-5910
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division ; DFSE - Division of Field Studies and Engineering
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  62-72
• Volume:
  390
• NIOSHTIC Number:
  nn:20062892
• Citation:
  Powder Technol 2021 Sep; 390:62-72
• Contact Point Address:
  Leonid A. Turkevich, Division of Field Studies and Engineering (DFSE), National Institute for Occupational Safety & Health (NIOSH), The Centers for Disease Control & Prevention (CDC), 1090 Tusculum Avenue, Cincinnati, OH 45226, United States of America
• Email:
  LLT0@cdc.gov
• Federal Fiscal Year:
  2021
• NORA Priority Area:
  Construction ; Manufacturing
• Peer Reviewed:
  True
• Source Full Name:
  Powder Technology
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6e01ad7ba63bd43871c7530d4e35d61d24cfbd232ef026e13271013853b74b8fe95076d02bd4663460040e29907ba98ca398447b18e5ac85517343c8ab5784a5
• Download URL:
  https://stacks.cdc.gov/view/cdc/226063/cdc_226063_DS1.pdf
• File Type:
  [PDF - 3.73 MB ]