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Secondary Hoods for Fugitive Emission Control

Applications Tips:
  • Thoroughly characterize fugitive emissions prior to design
  • Provide Make-up air
  • Avoid the use of man-cooling fans
Design Characteristics:
  • Q = (Natural rising velocity at hood face at 100 FPM) times surface area of hood in square feet
  • V is greater or equal to 4000 FPM transport (horizontal runs)
  • he = 2.2VP

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