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THE USE OF MECHANICAL REFRIGERATION TO IMPROVE THE STORAGE OF PESTICIDE TREATED GRAIN.

Author(s) : THORPE G. R., ELDER W. B.

Type of article: Article, IJR article

Summary

AN ESTABLISHED MATHEMATICAL MODEL OF HEAT AND MASS TRANSFER AND CHEMICAL KINETICS IS USED TO SIMULATE THE EFFECTS OF BLOWING MECHANICALLY REFRIGERATED AIR THROUGH GRAIN ON THE SUBSEQUENT RATE OF DECAY OF PESTICIDES. IT IS DEMONSTRATED THAT AIR CONDITIONERS FITTED WITH AN APPROPRIATE AIR HANDLING SYSTEM ARE CAPABLE OF FORCING COLD AIR THROUGH THE GRAIN. ALTHOUGH THE RATES OF DECAY OF THE TWO PESTICIDES, METHACRIFOS AND MALATHION, IN UNCOOLED GRAIN BULKS ARE VERY SENSITIVE TO INITIAL GRAIN MOISTURE CONTENT AND TEMPERATURE, GRAIN COOLING RENDERS THEIR DEGRADATION RELATIVELY INSENSITIVE TO THESE VARIABLES. IT IS SHOWN THAT WHEN THE GRAIN COOLING UNITS ARE OPERATED FOR A FIXED TIME THERE IS AN OPTIMUM AIR FLOW RATE FOR ACHIEVING THE MAXIMUM PRESERVATION OF PESTICIDE. THIS AIR FLOW RATE IS IN THE TYPICAL OPERATING RANGE OF THE COMMERCIAL AIR CONDITIONER STUDIED.

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Pages: 99-106

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Details

  • Original title: THE USE OF MECHANICAL REFRIGERATION TO IMPROVE THE STORAGE OF PESTICIDE TREATED GRAIN.
  • Record ID : 1981-0113
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 3 - n. 2
  • Publication date: 1980/03

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