The Evaluation of Momentum Flux to Estimate Exposure From Spray Painting Operations.

Abstract

Flynn developed an exposure model for spray paint mists based on the momentum flux ratio. The dimensionless momentum flux ratio is the momentum produced by the spray paint gun versus the reverse flow momentum caused by a worker. The model was tested with an anthropometric, 73 inch mechanical mannequin spraying nonvolatile oil on a flat plate in a paint booth while using a high volume, low pressure (HVLP) spray paint gun. Worker orientation to the freestream was also investigated. Momentum flux ratio, as a predictor of dimensionless concentration, produced trendlines qualitatively similar in shape and value for the HVLP and conventional spray paint guns. Geometric similarity between this experiment and Carlton's experiment lessened the error that results from improper scaling and increased the ability to compare results between the experiments.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1998
Accession Number
ADA358546

Entities

People

  • Brian A. Blazicko

Organizations

  • University of North Carolina at Chapel Hill

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Compressors
  • Boundary Layer
  • Compressors
  • Control Knobs
  • Experimental Data
  • Fluid Dynamics
  • Fluid Mechanics
  • Gages
  • Hygiene
  • Industrial Hygiene
  • Mass Flow
  • Measurement
  • Occupational Safety And Health
  • Pressure Measurement
  • Spray Guns
  • Stagnation Pressure
  • Test And Evaluation

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Computational Modeling and Simulation
  • Surface Coatings Technology.