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PREDICTING THE EFFECT OF AIR DISTRIBUTION ON COOLING TIME.

Author(s) : SELF K., BURFOOT D.

Summary

THE AUTHORS EXAMINE THE EFFECT OF THE AIR DISTRIBUTION AROUND A BEEF SIDE ON THE COOLING TIME. THE MODEL REPRESENTS THE BEEF SIDE AS A CYLINDER AND THE SURFACE HEAT TRANSFER COEFFICIENT IS VARIED AROUND THE CYLINDER TO SIMULATE THE AIR DIST VARIATIONS OF AIR SPEED SIMILAR TO THOSE MEASURED IN SLAUGHTERHOUSES (0.15 TO 3 M/S) WERE USED. THE TEMPERATURE WAS 273 K (0 DEG C) IN ALL OF THE CALCULATIONS. NON UNIFORM AIR DISTRIBUTIONS CAUSED THE WARMEST POINT WITHIN THE MEAT TO MOVE AWAY FROM THE GEOMETRIC CENTRE. FOR EQUAL AVERAGE AIR VELOCITIES, THE MOST RAPID CHILLING TO 280 K (7 DEG C) AT THE GEOMETRIC CENTRE WAS ACHIEVED BY USING A HIGH AIR SPEED MID-WAY ALONG THE CYLINDER WHICH REDUCED TO A MINIMUM AT THE ENDS. THE FASTEST COOLING TO 280 K AT THE WARMEST POINT WAS PRODUCED BY USING A UNIFORM AIR FLOW.

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Details

  • Original title: PREDICTING THE EFFECT OF AIR DISTRIBUTION ON COOLING TIME.
  • Record ID : 1988-1052
  • Languages: English
  • Publication date: 1986/09/10
  • Source: Source: Proc. Bristol Meet., IIR/C. R. Réun. Bristol, IIF
    1986-3; 381-388; 4 fig.; 1 tabl.; 17 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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