Computational Modelling And Experimental
Verification Of The Effective Thermal
Conductivity Of Hollow Bricks
Author(s)
J. Kočí, J. Maděra, L. Fiala & R. Černý
Abstract
The effective thermal conductivity of hollow brick blocks filled with different
insulation materials is analyzed using a combination of experimental and
computational approaches. In the experimental part, thermal properties of brick
body, mineral wool and expanded polystyrene are measured and a semi-scale
experiment is performed to determine heat fluxes and temperature distributions
across the brick. Based on the semi-scale experimental results, computer
simulations are carried out and the thermal parameters of the materials filling the
brick cavities are optimized. Finally, the effective thermal conductivity of hollow
brick block is determined.
Keywords: hollow brick block, computer simulation, polystyrene, mineral wool,
filling, optimisation.
1 Introduction
Reducing energy consumption and eliminating wastage are among the main
goals of the European Union (EU). EU support for improving energy efficiency
will prove decisive for competitiveness, security of supply and for meeting the
commitments on climate change made under the Kyoto protocol. There is
significant potential for reducing consumption with cost-effective measures.
With 40 % of energy consumed in buildings, the EU has introduced legislation to
ensure lower energy consumption. The key part of this legislation is Energy
Performance of Buildings Directive (EPBD, directive 2002/91/EC) [1], which
was first published in 2002. This directive required all EU countries to enhance
Keywords
hollow brick block, computer simulation, polystyrene, mineral wool,
filling, optimisation.
Related Book
Other papers in this volume
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