PAES 211

• Aspirator


  Cleaner that uses air to separate lower density material from the corn kernels/corn grits such as floured corn, germ and bran
• Bulk density


  Ratio of the weight (kg) of the corn kernels, to its volume (m3)
• Degerminated corn kernels


  Shelled corn kernels where the germ and pericarp have been removed
• Feed rate


  Weight of the corn kernels fed into the corn mill per unit of time
• Foreign matter


  Impurity, any matter which is not corn kernels/corn grits or fragment of corn kernels/corn grits, sand, gravel, dirt, pebbles, stones, lumps of earth, clay, mud, weeds and other crop seeds
• Input capacity


  Weight of corn kernel per unit loading time into the hopper/intake pit, expressed in kilogram per hour
• Laboratory sieve shaker


  Equipment with definite shaking motion used to sort the size of the milled materials using standard screen sieves
• Milling capacity


  Quantity of corn kernels that the corn mill can process to produce corn grits per unit of time
• Output capacity


  Weight of the milled corn collected per unit of time
• Precleaner


  Auxiliary device of the corn mill that removes foreign material
• Primemover


  Electric motor, or gasoline-fed, or diesel-fed engine used to run the corn mill
• Purity


  Ratio of the weight of clean corn kernels, to the total weight of uncleaned corn kernels, expressed in percent
• Sifter


  Oscillating screen, wire mesh or perforated metal sheet, moving in back-and-forth direction, permitting smaller particles to fall through the openings and larger particles to remain on top
• The sampled corn mill shall be submitted for testing
• The interested party shall provide testing materials and other variable cost such as fuel, etc.
• Data collection


  • Duration of test
  • Noise level
  • Speed of components
  • Fuel/Electric energy consumption
  • Data recording and observations
• Laboratory analysis shall be made to determine the degerminator efficiency, losses and percentage of corn grits of other sizes from each outlet