Thermal testing and numerical simulation of gypsum wallboards incorporated with different PCMs content

Borreguero, Ana M.; sanchez, Marialuz; Valverde, J.L.; Carmona, Manuel; Rodrı́guez, Juan F.

doi:10.1016/j.apenergy.2010.08.014

Cited by 118 publications

(47 citation statements)

References 37 publications

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“…The simulations on thermal performance of the PCM walls were carried out in a number of studies [51,58,59,99,102,[104][105][106][107][108][109][110][111]. Table 7 is listed some simulation works on the PCM walls.…”

Section: Numerical Simulation For Passive Solar Heatingmentioning

confidence: 99%

Review on thermal energy storage with phase change materials (PCMs) in building applications

2012

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Thermal energy storage with phase change materials (PCMs) offers a high thermal storage density with a moderate temperature variation, and has attracted growing attention due to its important role in achieving energy conservation in buildings with thermal comfort. Various methods have been investigated by previous researchers to incorporate PCMs into the building structures, and it has been found that with the help of PCMs the indoor temperature fluctuations can be reduced significantly whilst maintaining desirable thermal comfort. This paper summarises previous works on latent thermal energy storage in building applications, covering PCMs, the impregnation methods, current building applications and their thermal performance analyses, as well as numerical simulation of buildings with PCMs. Over 100 references are included in this paper.

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Section: Numerical Simulation For Passive Solar Heatingmentioning

confidence: 99%

Review on thermal energy storage with phase change materials (PCMs) in building applications

2012

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“…Several passive PCM-based TES solutions for buildings have been studied during the last decades, for both opaque and window facades, such as PCM enhanced drywalls [2,[89][90][91][92][93][94][95][96][97][98][99][100][101][102][103][104], SSPCM elements [105][106][107][108][109][110][111][112][113][114][115][116][117][118][119][120], PCM-based ventilated facades [121][122][123][124][125][126], PCM-shutters and PCM-window blinds systems [127][128][129][130][131], interior sun protections with PCMs [132,133], translucent PCM walls [134]…”

Section: Phase Change Materialsmentioning

confidence: 99%

Energy efficiency and thermal performance of lightweight steel-framed (LSF) construction: A review

Soares

Santos

Gervásio

et al. 2017

Renewable and Sustainable Energy Reviews

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The improvement of the use of renewable energy sources, such as solar thermal energy, and the reduction of energy demand during the several stages of buildings' life cycle is crucial towards a more sustainable built environment. This paper presents an overview of the main features of lightweight steel-framed (LSF) construction with cold-formed elements from the point of view of life cycle energy consumption. The main LSF systems are described and some strategies for reducing thermal bridges and for improving the thermal resistance of LSF envelope elements are presented. Several passive strategies for increasing the thermal storage capacity of LSF solutions are discussed and particular attention is devoted to the incorporation of phase change materials (PCMs). These materials can be used to improve indoor thermal comfort, to reduce the energy demand for air-conditioning and to take advantage of solar thermal energy. The importance of reliable dynamic and holistic simulation methodologies to assess the energy demand for heating and cooling during the operational phase of LSF buildings is also discussed. Finally, the life cycle assessment (LCA) and the environmental performance of LSF construction are reviewed to discuss the main contribution of this kind of construction towards more sustainable buildings.

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“…In most past investigations, the liquid fraction term (β) was mainly used in numerical studies [28,31,32] where the thermal and/or physical properties of the PCM during phase change were required. Similarly, in the numerical portion of this study, the liquid fraction was directly used in the calculation of the density and the momentum retardation term, while it was indirectly present in the effective heat capacity model, due to the temperature dependence.…”

Section: Relevance and Importance Of The Liquid Fractionmentioning

confidence: 99%

Experimental and numerical investigations of the optical and thermal aspects of a PCM-glazed unit

Gowreesunker

Stanković

Tassou

et al. 2013

Energy and Buildings

114

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This paper reports on the experimental and numerical analysis of the optical and thermal aspects of PCM (Phase Change Material) RT27 when subjected to an irradiation source of energy. The analysis is separated into the thermal and optical characterisation of the PCM using the T-history method and spectrophotometry principles, respectively, and the experimental and numerical performance evaluation of a PCM-Glazed unit. Various relationships describing the variations in the extinction, scattering and absorption coefficients with respect to the liquid fraction/ temperature within the phase change region were developed from the experimental setup, and were validated in a numerical CFD model. The results show that: i) during rapid phase changes, the transmittance spectra from the PCM are unstable, while under stable conditions a visible transmittance value of 90% and 40% are obtained for the liquid and phases, respectively; ii) the radiation scattering effects are more prominent in the solid phase of the PCM, while radiation absorption dominates in the liquid phase; iii) the optical/ radiation performance of PCM can be successfully modelled using the liquid fraction term as the main variable, in a similar way that the enthalpy porosity method is employed for phase change processes; iv) relative to a standard double glazed unit, the addition of PCM improves the thermal mass of the unit during phase change, but depending on specific

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Thermal testing and numerical simulation of gypsum wallboards incorporated with different PCMs content

Cited by 118 publications

References 37 publications

Review on thermal energy storage with phase change materials (PCMs) in building applications

Review on thermal energy storage with phase change materials (PCMs) in building applications

Energy efficiency and thermal performance of lightweight steel-framed (LSF) construction: A review

Experimental and numerical investigations of the optical and thermal aspects of a PCM-glazed unit

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