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Air Emissions from Animal Feeding Operations Current Knowledge, Future Needs (2003) / Chapter Skim
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Appendix I: Emission Factors for a Feed Mill or Grain Elevator
Pages 226-227

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From page 226...
... The entrainment of PM in air is a consequence of pneumatic conveying and ventilation systems designed to prevent grain dust explosions by reducing concentrations of grain dust. Typically, controls are installed to reduce PM emission rates.
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From page 227...
... of 1.5. This relatively flat penetration curve results in significant PM10 concentration measurement errors, which will ultimately result in incorrect emission factors.
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Key Terms

  • unit time
  • source sampling
  • relatively flat
  • mass emission
  • unit volume

  • ultimately result
  • incorrect emission
  • fractional efficiency
  • flow rate
  • concentration measurement

  • measurement errors
  • log normal
  • emission rate
  • efficiency curve
  • penetration curve

  • flat penetration
  • units shown
  • curve results
  • grain dust
  • prevent grain

  • grain processed
  • emission rates
  • emission factor
  • accomplished using
  • dust explosions

  • processing rate
  • reducing concentrations
  • pneumatic conveying
  • ci x
  • x hi


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