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EVALUATION OF REFRIGERATED MILK TANK INSULATION AS A FACTOR IN MILK COOLING AND STORAGE EFFICIENCY.

Author(s) : FLEMING M. G., O'KEEFFE J.

Type of article: Article

Summary

THE IMPORTANCE OF TANK SIDEWALL INSULATION TO MILK COOLING EFFICIENCY WAS DETERMINED BY COMPARING AN UNINSULATED DIRECT EXPANSION TANK OF 2,400 L CAPACITY, FITTED WITH AN AIR-COOLED CONDENSING UNIT, WITH ITS INSULATED COUNTERPART AT AMBIENT TEMPERATURES RANGING FROM 283 TO 298 K (10 TO 25.C). IN EACH TANK FOUR SUCCESSIVE WATER BATCH ADDITIONS AT 291 K (18.C), EQUIVALENT TO PRECOOLED MILK, WERE COOLED TO 277 K (4.C). THE INCREASE IN AMBIENT TEMPERATURE FROM 283 TO 298 K RESULTED IN AN APPROXIMATE 25% INCREASE IN CUMULATIVE COOLING TIME AND 50% IN ENERGY CONSUMPTION WITH THE INSULATED TANK, WHICH CONTRASTED WITH INCREASES OF OVER 50% IN THE FORMER AND ALMOST 100% IN THE LATTER WHEN THE UNINSULATED TANK WAS USED. THE ENERGY REQUIRED TO COMPENSATE FOR HEAT LOSS WHEN WATER AT 277 K WAS STORED IN THE UNINSULATED TANK WHEN FULL, INCREASED FROM 0.074 TO 0.413 KWH PER H PER 1,000 L WHEN THE AMBIENT TEMPERATURE WAS INCREASED FROM 283 TO 298K.

Details

  • Original title: EVALUATION OF REFRIGERATED MILK TANK INSULATION AS A FACTOR IN MILK COOLING AND STORAGE EFFICIENCY.
  • Record ID : 1982-0166
  • Languages: English
  • Source: Ir. J. Food Sci. Technol. - vol. 5 - n. 1
  • Publication date: 1981
  • Document available for consultation in the library of the IIR headquarters only.

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