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A COMPARISON OF 2 TEST METHODS FOR DETERMINING TRANSFER FUNCTION COEFFICIENTS FOR A WALL USING A CALIBRATED HOT BOX.

Author(s) : BURCH D. M., LICITRA B. A., ZARR R. R.

Type of article: Article

Summary

THE PAPER EXPERIMENTALLY VERIFIES AND COMPARES TWO DYNAMIC TEST METHODS FOR A CALIBRATED HOT BOX TO CHARACTERIZE THE TRANSIENT THERMAL PERFORMANCE OF COMPLEX WALLS. IN THESE METHODS, A WALL SPECIMEN IS SANDWICHED BETWEEN THE TWO CONDITIONING CHAMBERS OF A CALIBRATED HOT BOX. THE EXTERIOR SURFACE OF THE WALL SPECIMEN IS SUBJECTED TO A TIME-VARYING EXCITATION FUNCTION IN AIR TEMPERATURE. AT THE INTERIOR SURFACE, THE AIR TEMPERATURE IS MAINTAINED STEADY, AND THE HEAT TRANSFER RESPONSE IS MEASURED. CONDUCTION TRANSFER FUNCTION COEFFICIENTS THAT RELATE THE MEASURED HEAT TRANSFER RESPONSE TO THE EXCITATION FUNCTION ARE DERIVED. THE 2 DYNAMIC TEST METHODS WERE APPLIED TO AN INSULATED HOLLOW CONCRETE BLOCK WALL THAT CONTAINED SIGNIFICANT THERMAL BRIDGES AND LATERAL HEAT FLOWS.

Details

  • Original title: A COMPARISON OF 2 TEST METHODS FOR DETERMINING TRANSFER FUNCTION COEFFICIENTS FOR A WALL USING A CALIBRATED HOT BOX.
  • Record ID : 1991-0113
  • Languages: English
  • Source: J. Heat Transf. - vol. 112 - n. 1
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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