Experimental testing and numerical modelling of masonry wall solution with PCM incorporation: A passive construction solution
authors Silva, T; Vicente, R; Soares, N; Ferreira, V
nationality International
journal ENERGY AND BUILDINGS
author keywords Solar energy; Latent heat; Phase change materials; Energy storage; Thermal comfort
keywords THERMAL-ENERGY STORAGE; PHASE-CHANGE; HEAT-TRANSFER; SYSTEM; SIMULATION; WALLBOARD
abstract Presently the essential research trend for sustainable buildings is the use of renewable energy sources and the development of new techniques of energy storage. Phase change materials (PCMs) may store latent heat energy in addition to the typical sensible energy capacity of current building materials, allowing to store significantly more energy during the phase change process (solid to liquid and vice versa). The incorporation of PCMs into building envelope solutions takes advantage of solar energy, contributing to the overall reduction of energy consumption associated to use of the air conditioning systems. This paper presents and discusses research developed in two main components: experimental testing and numerical simulation of a building component with PCM incorporation. The main goal of the experimental testing carried out was to evaluate the effect of the incorporation of PCM macro encapsulated into a typical Portuguese clay brick masonry enclosure wall. It is evaluated the influence of the phase change process of the PCM over the attenuation and time delay of the temperature fluctuations for indoor spaces. The experimental results allowed the calibration and validation of the numerical model, enabling to carry out parametric studies with different PCMs quantity analysing consequent temperature damping and time delay. (C) 2012 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 0378-7788
year published 2012
volume 49
beginning page 235
ending page 245
digital object identifier (doi) 10.1016/j.enbuild.2012.02.010
web of science category Construction & Building Technology; Energy & Fuels; Engineering, Civil
subject category Construction & Building Technology; Energy & Fuels; Engineering
unique article identifier WOS:000305875500026
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journal impact factor 4.457
5 year journal impact factor 4.779
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