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Mao, Guofeng. Laboratory Measurements and Modelling of the Dynamic Thermal Performance of a Thermal Bridge. Nordic Journal Of Building Physics: Acta Physica Aedificiorum, p. 1 -1, 1998.
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Abstract

Laboratory measurements on dynamic thermal performance of a thermal bridge at the Division of Building Technology, Kungliga Tekniska Högskolan in Stockholm, are presented in this paper. In order to analyse the measured results, dynamic multi-dimensional modelling that can describe the dynamic behaviour of thermal bridges in a simple and accurate way is required. A network method with a P-link representing the dynamic parameters for a thermal bridge - thermal resistance and thermal capacitance, is developed to analyse the measured results of a thermal bridge. The dynamic thermal parameters - resistance, R and capacitance, C are derived from dynamic multi-dimensional modelling under frequency domain using the so called w – RC technique. The procedure is demonstrated by a measurement of the dynamic thermal performance of an insulated concrete sandwich structure with wooden studs. This study is oriented to combine modelling and measurements to get quick and reasonable measured results for thermal bridges, and this procedure can also be implemented into measurements on thermal bridges in situ. Discussion on the deviations of the results between the modelling and the measurements are briefly given in the last part of this paper to check the individual parts of the procedure.
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