Template:Model theory (Text, Screen Efficiency)

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Screen efficiency, or the efficiency of undersize removal, (frac), is defined as "the fraction of sub-aperture material in the feed stream which is actually recovered to the undersize stream". Formally,

where:

  • is the mass flow rate of particles in the undersize stream (t/h)
  • is the mass flow rate of particles in the feed stream (t/h)
  • is the mass fraction of particles in the feed which are smaller than the aperture size (w/w)