Thermal dynamics of wallboard with latent heat storage

Neeper, D.A.

doi:10.1016/s0038-092x(00)00012-8

Cited by 330 publications

(122 citation statements)

References 11 publications

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“…Zhang and Xu [72] found the optimal phase change temperature was roughly equal to the average indoor air temperature of sunny winter days after studying the thermal performance of SSPCM floor. Neeper [66] also concluded the optimal phase change temperature equalled the average room temperature can achieve the maximum diurnal energy storage. Xiao et al [103] presented the optimal phase change temperature not only depends on the indoor air temperature but also on the radiation absorbed by the PCM panels.…”

Section: Pcm Walls Design Methodologymentioning

confidence: 98%

“…The results showed that the room temperature can be reduced by a maximum 4℃ during the daytime. Neeper [66] impregnated fatty acid and paraffin waxes into the gypsum wallboard and examined the thermal dynamics under the diurnal variation of room temperature (the radiation absorbed was not considered) with the PCM on interior partion and exterior partion respectively. Their investigation indicated that when the PCM' s melting temperature was close to the average room temperature the maximum diurnal energy storage occurred and diurnal energy storage decreased if the phase change transition occurred over a range of temperature.…”

Section: Pcm Wallboardmentioning

confidence: 99%

See 1 more Smart Citation

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: Pcm Walls Design Methodologymentioning

confidence: 98%

Section: Pcm Wallboardmentioning

confidence: 99%

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

2012

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“…Phase change materials (PCMs), which release or absorb thermal energy during melting and solidification processes, are believed to have outstanding capability to store a massive amount of heat efficiently during their phase change processes [1,2]. PCMs have been investigated in building applications [3][4][5][6], industrial waste heat recovery [7], solar collectors [8], solar power plants [9], high-efficient compact heat sinks [10], solar cookers [11,12] and solar stills [13]. Thermal stability investigations of PCMs have been conducted through implementing repeated thermal cycle tests [14,15].…”

Section: Introductionmentioning

confidence: 99%

A numerical investigation of heat transfer in phase change materials (PCMs) embedded in porous metals

YiShui

Zhao

2011

Energy

428

124

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The effects of metal foams on heat transfer enhancement in Phase Change Materials (PCMs) are investigated. The numerical investigation is based on the two-equation non-equilibrium heat transfer model, in which the coupled heat conduction and natural convection are considered at phase transition and liquid zones. The numerical results are validated by experimental data. The main findings of the investigation are that heat conduction rate is increased significantly by using metal foams, due to their high thermal conductivities, and that natural convection is suppressed owing to the large flow resistance in metal foams. In spite of this suppression caused by metal foams, the overall heat transfer performance is improved when metal foams are embedded into PCM; this implies that the enhancement of heat conduction offsets or exceeds the natural convection loss. The results indicate that for different metal foam samples, heat transfer rate can be further increased by using metal foams with smaller porosities and bigger pore densities. Keywords:Heat transfer enhancement; PCM; Metal foam; Thermal storage; Volume-averaged method; Non-thermal-equilibrium model.

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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

106

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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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Thermal dynamics of wallboard with latent heat storage

Cited by 330 publications

References 11 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

A numerical investigation of heat transfer in phase change materials (PCMs) embedded in porous metals

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

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