Thermal conductivity is one of the most important parameters for construction and building materials. Indeed, extensive efforts have been put in by Europe in order to decrease energy consumption at various levels. However, with regards to historical buildings, the measures of thermal performance are not simple and they, in fact, pose a wide range of error. In this paper, an intermingled fractal model has been proposed, which is capable of reproducing the porous microstructure. Moreover, by converting this model into an electrical circuit, it is capable of predicting thermal conductivity. The results are in perfect agreement with experimental ones obtained by climatic chamber.

Thermal properties of porous stones in cultural heritage: Experimental findings and predictions using an intermingled fractal units model

PIA, GIORGIO;CASNEDI, MARIA LUDOVICA;RICCIU, ROBERTO;BESALDUCH, LUIGI ANTONIO;COCCO, OMBRETTA;MURRU, ARIANNA;MELONI, PAOLA;SANNA, ULRICO UMBERTO MARIA
2016

Abstract

Thermal conductivity is one of the most important parameters for construction and building materials. Indeed, extensive efforts have been put in by Europe in order to decrease energy consumption at various levels. However, with regards to historical buildings, the measures of thermal performance are not simple and they, in fact, pose a wide range of error. In this paper, an intermingled fractal model has been proposed, which is capable of reproducing the porous microstructure. Moreover, by converting this model into an electrical circuit, it is capable of predicting thermal conductivity. The results are in perfect agreement with experimental ones obtained by climatic chamber.
Climatic chamber; Cultural heritage; Energy design; Fractal geometry; Model prediction; Modelling; Pore size distribution; Porous materials; Thermal conductivity; Civil and Structural Engineering; Building and Construction; Mechanical Engineering; Electrical and Electronic Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/177611
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