Development and validation of a new TRNSYS type for the simulation of external building walls containing PCM

Kuznik, Frédéric; Virgone, Joseph; Johannes, Kévyn

doi:10.1016/j.enbuild.2010.01.012

Cited by 137 publications

(54 citation statements)

References 20 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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“…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]. Phase changing component materials are better than ordinary masonry wall for energy efficiency and thermal comfort [217], especially those with sharp melting points [218].…”

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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“…Façades may be likened to regenerators and studied using parameters Λ and Π, modifying the definition of Π as in Equation (11). Here the term L/P is regarded as negligible and hence dropped and Cm is not constant: (11) where τ and λ are storage time and latent heat, respectively.…”

Section: Estimatesmentioning

confidence: 99%

“…Assessment of their performance calls for suitable simulation methods. Any number of articles have been written on simulation, most dealing with detailed methods [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Energy Efficiency Indicators for Assessing Construction Systems Storing Renewable Energy: Application to Phase Change Material-Bearing Façades

et al. 2015

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Assessing the performance or energy efficiency of a single construction element by itself is often a futile exercise. That is not the case, however, when an element is designed, among others, to improve building energy performance by harnessing renewable energy in a process that requires a source of external energy. Harnessing renewable energy is acquiring growing interest in Mediterranean climates as a strategy for reducing the energy consumed by buildings. When such reduction is oriented to lowering demand, the strategy consists in reducing the building's energy needs with the use of construction elements able to passively absorb, dissipate, or accumulate energy. When reduction is pursued through M&E services, renewable energy enhances building performance. The efficiency of construction systems that use renewable energy but require a supplementary power supply to operate can be assessed by likening these systems to regenerative heat OPEN ACCESSEnergies 2015, 8 8631 exchangers built into the building. The indicators needed for this purpose are particularly useful for designers, for they can be used to compare the efficiency or performance to deliver an optimal design for each building. This article proposes a series of indicators developed to that end and describes their application to façades bearing phase change materials (PCMs).

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Development and validation of a new TRNSYS type for the simulation of external building walls containing PCM

Cited by 137 publications

References 20 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

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

Energy Efficiency Indicators for Assessing Construction Systems Storing Renewable Energy: Application to Phase Change Material-Bearing Façades

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