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ATP TESTS OF THIN-WALLED VEHICLES.

Author(s) : PANOZZO G.

Summary

THE K VALUE IS A MONODIMENSIONAL PARAMETER. WHEN THE WALL INSULATION THICKNESS IS NOT HOMOGENEOUS, THE MONODIMENSIONAL COEFFICIENT IS NOT SUFFICIENTLY EXPLICIT. THE MOST SIGNIFICANT SOURCE OF ERROR IS THE TEMPERATURE DEVIATION ACCORDING TO THE WALL THICKNESS DETERMINING THE INCREASE IN K VALUE. THE AUTHOR CONSIDERS THE HOMOGENEOUS WALL THICKNESS REQUIRED FOR OBTAINING, UNDER THE CONDITIONS SPECIFIED BY ATP, THE SAME K VALUE AS THAT OF A VEHICLE WITH HETEROGENEOUS WALLS. THE K VALUE IS THUS CALCULATED FOR HOMOGENEOUS THICKNESS AND NOT, UNDER UNIFORM TEMPERATURE CONDITIONS, AFTER EXTERNAL AND INTERNAL WALLS. THE K VALUE TO BE RETAINED IS THE EFFECTIVELY MEASURED K VALUE, MULTIPLIED BY A COEFFICIENT WHICH IS THE RATIO OF K VALUES FOR HOMOGENEOUS AND HETEROGENEOUS THICKNESSES, CALCULATED UNDER UNIFORM EXTERNAL TEMPERATURE CONDITIONS.

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Pages: 1985-2

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Details

  • Original title: ATP TESTS OF THIN-WALLED VEHICLES.
  • Record ID : 1986-2503
  • Languages: English
  • Source: Long distance refrigerated transport: land and sea.
  • Publication date: 1985/03/13
  • Document available for consultation in the library of the IIR headquarters only.

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