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Oxide Barrel Filling Local Exhaust Ventilation


Oxide Barrel Filling Local Exhaust Ventilation


Text Version

Oxide Barrel Filling Local Exhaust Ventilation

Side views of four barrel figures 

Design Criteria:
  • Figure 1 with 1" slot
    - Q = 100 cfm/ft2 barrel top minimum
    - Duct velocity = 4,200 to 4,500 fpm
    - Entry loss = 0.25 vp + 1.78 slot vp
    - Manual Loading
  • Figure 2
    - Q = 150 cfm/ft2 open face area
    - Duct velocity = 4,200 to 4,500 fpm
    - Entry loss = 0.25 vp for 45° taper
  • Figure 3 with feed spout and exhaust duct
    - Q = 50 cfm x drum dia (ft) for weighted lid
    - Q = 150 cfm x drum dia (ft) for loose lid
    - Duct velocity = 4,200 to 4,500 fpm
    - Entry loss = 0.25 vp
  • Figure 4
    - Q = 300 - 400 cfm
    - Duct velocity = 4,200 to 4,500 fpm
    - Entry loss = 0.25 vp