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A DAIRY REFRIGERATION HEAT RECOVERY UNIT AND ITS EFFECTS ON REFRIGERATION OPERATION.

Author(s) : STINSON G. E., STUDMAN C., WARBURTON D. J.

Type of article: Article

Summary

THEORETICALLY, THE POTENTIAL FOR RECOVERY OF CONDENSER HEAT WAS ESTIMATED TO BE UP TO 60% OF THE HEATING ENERGY REQUIREMENTS. TESTS LED TO THE DEVELOPMENT AND TESTING OF A TUBE-IN-TUBE, COUNTER FLOW HEAT EXCHANGER, WITH FINS ON THE REFRIGERANT SIDE AND CORES ON THE WATER SIDE. THE EXCHANGER PROVIDING 300 LITRES OF WATER AT 60 DEG C FROM A 2.25 KILOW REFRIGERATION SYSTEM WHICH COOLED 2,100 LITRES/D OF MILK WAS TESTED WITH 2 CONDENSING SYSTEMS (AIR AND WATER), TOGETHER WITH VARYING CONDITIONS OF PRESSURE AND MILK TEMPERATURE. INCREASING THE PRESSURE FROM 650 TO 1,200 KILOPASCALS INCREASED COOLING TIMES. THE AVERAGE COP DECREASED WITH INCREASING PRESSURE, VARYING FROM 3.0 TO 2.3 OVER THIS RANGE OF PRESSURES FOR THE WATER COOLED CONDENSER SYSTEM AND FOR THE AIR COOLED CONDENSER SYSTEMS 0.3 TO 0.4 LOWER.

Details

  • Original title: A DAIRY REFRIGERATION HEAT RECOVERY UNIT AND ITS EFFECTS ON REFRIGERATION OPERATION.
  • Record ID : 1988-1237
  • Languages: English
  • Source: J. agric. Eng. Res. - vol. 36 - n. 4
  • Publication date: 1987

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