Simulation of phase change drywalls in a passive solar building

Darkwa, K; O’Callaghan, Paul

doi:10.1016/j.applthermaleng.2005.10.007

Cited by 96 publications

(33 citation statements)

References 12 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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“…This method leaves no room for accounting of sub-cooling, common, to differing degrees, in all PCMs (Whiffen and Riffat, 2012). To model alternative PCM within Design Builder cumulative enthalpy-temperature data points were calculated using the PCM physical properties taken from the manufacturer data sheets and the Gaussian effective heat capacity function (Darkwa and O'Callaghan, 2006). From the generated Gaussian effective heat capacity curves (J/kgK) the variable enthalpies per unit mass (J/kg) were calculated at half kelvin increments.…”

Section: Figure 15 -Reference Building Model Used Throughout the Simumentioning

confidence: 99%

A study on the effect of ground surface boundary conditions in modelling shallow ground heat exchangers

Bortoloni¹,

Bottarelli²,

2017

Applied Thermal Engineering

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“…It was observed that the inclusion of PCM substantially lowered the hydration temperature and thermal conductivity, however, the compressive strength was reported to decrease by up to 71% with the inclusion of PCM, by a 5% weight ratio within 28 days of exposure [213]. A heat transfer model predicted that laminated wallboards exhibit a higher heat storage capacity compared to randomly distributed wallboards [214]. It was predicted that PCM performance is strongly dependent on the thickness of the walls, phase change temperature, and total latent heat of the PCM [215], crucial to enhance thermal inertia of the buildings [216].…”

Section: Modelling Studiesmentioning

confidence: 99%

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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Simulation of phase change drywalls in a passive solar building

Cited by 96 publications

References 12 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 study on the effect of ground surface boundary conditions in modelling shallow ground heat exchangers

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

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