Numerical and experimental analyses of PCM containing sandwich panels for prefabricated walls

Carbonari, Alessandro; Grassi, Marco; Perna, Costanzo Di; Principi, Paolo

doi:10.1016/j.enbuild.2005.08.007

Cited by 97 publications

(33 citation statements)

References 13 publications

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“…Heat absorbed or released by such a fictitious material must be equal to that absorbed or released by the actual material for the same rise or decrease of temperature. This seems consistent with the literature (Zalba et al, 2003;Farid et al, 2004;Schossig et al, 2005;Carbonari et al 2006;Tyage & Buddhi, 2007), which shows that currently available PCM do not change phase at a precise temperature level, but rather over a more or less narrow temperature interval. Moreover, the slope of heat absorption or release in the phase change interval is often similar to a gaussian distribution about the central temperature.…”

Section: Model and Case Studysupporting

confidence: 81%

Coupling of Solar Reflective Cool Roofing Solutions with Sub-Surface Phase Change Materials (PCM) to Avoid Condensation and Biological Growth

Muscio

2016

ESSD

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Cool roofs are effective solutions to counter the overheating of building roofs, inhabited spaces below and urban areas in which buildings are located thanks to their capability of reflecting solar radiation. Nonetheless, the relatively low surface temperatures that they induce can cause condensation of humidity and leave the surface wetted for large part of the day, thus promoting the growth of bacteria, algae and other biological fouling; this can cause a quick decay of the solar reflective performance. Biological growth is countered by surface treatments, which, however, may be toxic and forbidden in many countries and may also vanish quickly. It can also be countered by lowering the thermal emittance and thus decreasing heat transfer by infrared radiation to the sky and the consequent night undercooling, but this can decrease the performance of cool roofs. An alternative approach, which is analyzed in this work, is to embed in the first layer below the cool roof surface a phase change material (PCM) that absorbs heat during the daytime and then releases it in the nighttime. This can increase the minimum surface temperatures, thus reducing the occurrence humidity condensation and also the biological growth. In this work, preliminary results on the coupling of a cool roof surface with a PCM sublayer are presented, being obtained by theoretical investigation on commercial materials and taking into account the time evolution pattern of the environmental conditions.

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Section: Model and Case Studysupporting

confidence: 81%

Coupling of Solar Reflective Cool Roofing Solutions with Sub-Surface Phase Change Materials (PCM) to Avoid Condensation and Biological Growth

Muscio

2016

ESSD

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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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“…The results concluded that a 5 mm of PCM layer board had twice the thermal inertia of non-PCM wallboard and performed equivalently to an 8 cm thick concrete wall [207]. A finite element algorithm validated the prototype experimental results that an air layer between PCM and metal in the wallboard can enhance thermal mass sensibly, with ease of installation [208].…”

Section: Modelling Studiesmentioning

confidence: 72%

Micro-Encapsulated Phase Change Materials: A Review of Encapsulation, Safety and Thermal Characteristics

2016

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Phase change materials (PCMs) have been identified as potential candidates for building energy optimization by increasing the thermal mass of buildings. The increased thermal mass results in a drop in the cooling/heating loads, thus decreasing the energy demand in buildings. However, direct incorporation of PCMs into building elements undermines their structural performance, thereby posing a challenge for building integrity. In order to retain/improve building structural performance, as well as improving energy performance, micro-encapsulated PCMs are integrated into building materials. The integration of microencapsulation PCMs into building materials solves the PCM leakage problem and assures a good bond with building materials to achieve better structural performance. The aim of this article is to identify the optimum micro-encapsulation methods and materials for improving the energy, structural and safety performance of buildings. The article reviews the characteristics of micro-encapsulated PCMs relevant to building integration, focusing on safety rating, structural implications, and energy performance. The article uncovers the optimum combinations of the shell (encapsulant) and core (PCM) materials along with encapsulation methods by evaluating their merits and demerits.

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Numerical and experimental analyses of PCM containing sandwich panels for prefabricated walls

Cited by 97 publications

References 13 publications

Coupling of Solar Reflective Cool Roofing Solutions with Sub-Surface Phase Change Materials (PCM) to Avoid Condensation and Biological Growth

Coupling of Solar Reflective Cool Roofing Solutions with Sub-Surface Phase Change Materials (PCM) to Avoid Condensation and Biological Growth

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

Micro-Encapsulated Phase Change Materials: A Review of Encapsulation, Safety and Thermal Characteristics

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