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COMPARISON OF DIFFERENT THERMAL MODELS FOR BUILDINGS WITH EXPERIMENTS IN ARTIFICIAL CLIMATIC CONDITIONS.

Author(s) : BRAU J.

Summary

THIS PAPER ANALYZES THEORETICAL AND EXPERIMENTAL APPROACHES OF THE THERMAL BEHAVIOUR OF A LIVING UNIT SUBJECTED TO SIMULATED CLIMATIC CONDITIONS. THE EXPERIMENTAL SETUP IS DESCRIBED FIRST. THE VALUE OF THE SURFACE HEAT-TRANSFER COEFFICIENT, SPATIAL HETEROGENEITY OF TEMPERATURES CAUSED BY VENTILATION, AND EXISTENCE OF THERMAL BRIDGES WERE STUDIED USING FINITE DIFFERENCES AND FINITE ELEMENTS METHODS AND BY I.R. THERMOGRAPHY. UNDER NON-STEADY-STATE CONDITIONS, TWO COMPUTER MODELS WERE USED. THE COMPUTER RESULTS COMPARED WITH THE EXPERIMENTAL ONES SHOWED THE WEAKNESS OF ALL MODELING RELATED TO CERTAIN HYPOTHESES. A NECESSARY MODIFICATION OF THE AIR CAPACITY, OF THE SURFACE HEAT-TRANSFER COEFFICIENT, OR OF THE POWER ENABLES A BETTER AGREEMENT TO BE REACHED BETWEEN THE MODEL AND THE SHORT-TERM EXPERIMENTS.

Details

  • Original title: COMPARISON OF DIFFERENT THERMAL MODELS FOR BUILDINGS WITH EXPERIMENTS IN ARTIFICIAL CLIMATIC CONDITIONS.
  • Record ID : 1984-1990
  • Languages: English
  • Publication date: 1983
  • Source: Source: ASHRAE Trans.
    vol. 89; n. 1A; 23-34; 12 fig.; 11 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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