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BUILDING WALL HEAT FLUX CALCULATIONS.

Author(s) : PARK J. E.

Summary

CALCULATIONS OF THE HEAT TRANSFER THROUGH THE STANDARD STUD WALL STRUCTURE OF A RESIDENTIAL BUILDING ARE DESCRIBED. THE WALL CAVITY CONTAINS NO INSULATION. 4 OF THE 5 TEST CASES REPRESENT PROGRESSIVELY MORE COMPLICATED APPROXIMATIONS. THE FIFTH ADDS THE MODEL COMPONENTS NECESSARY TO SEVERELY INHIBIT THE RADIATIVE ENERGY TRANSPORT ACROSS THE EMPTY CAVITY. FLOW WITHIN THE WALL CAVITY IS CALCULATED FROM THE NAVIER-STOKES EQUATIONS AND THE ENERGY CONSERVATION EQUATION FOR AN IDEAL GAS USING THE IMPLICIT COMPRESSIBLE EULERIAN ALGORITHM. CONDUCTION THROUGH SILL PLATES IS ABOUT 4% OF THE TOTAL HEAT TRANSFERRED. ALL THE OTHER MODEL ELEMENTS ARE REQUIRED TO ACCURATELY PREDICT THE HEAT TRANSFER THROUGH A WALL. ADDITION OF A FOIL LINER ON ONE INNER SURFACE OF THE WALL CAVITY REDUCES THE TOTAL HEAT TRANSFERRED BY ALMOST 50%.

Details

  • Original title: BUILDING WALL HEAT FLUX CALCULATIONS.
  • Record ID : 1988-2411
  • Languages: English
  • Publication date: 1987
  • Source: Source: ASHRAE Trans.
    vol. 93; n. 2; 120-136; 9 fig.; 4 tabl.; 7 ref.; append.
  • Document available for consultation in the library of the IIR headquarters only.

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