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Journal ArticleDOI

Phase change materials integrated in building walls: A state of the art review

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TLDR
In this article, an extensive review on the incorporation of PCM into construction materials and elements by direct incorporation, immersion, encapsulation, shape-stabilization and form-stable composite PCMs is presented.
Abstract
The building sector is the dominant energy consumer with a total 30% share of the overall energy consumption and accounts for one-third of the greenhouse gas emissions around the world. Moreover, in recent years the energy demands for buildings have increased very rapidly due to increase in the growth rate of population and improvement in living standards of people. Furthermore, fossil fuels will continue to dominate the world's primary energy by 2030. Thus, the increase in energy demand, shortage of fossil fuels and environmental concerns has provided impetus to the development of sustainable building and renewable energy resources. Thermal energy storage is an efficient method for applying to building envelopes to improve the energy efficiency of buildings. This, in turn, reduces the environmental impact related to energy usage. The combination of construction materials and PCM is an efficient way to increase the thermal energy storage capacity of construction elements. Therefore, an extensive review on the incorporation of PCM into construction materials and elements by direct incorporation, immersion, encapsulation, shape-stabilization and form-stable composite PCMs is presented. For the first time, the differentiation between shape-stabilized and form-stable composite PCM has been made. Moreover, various construction materials such as diatomite, expanded perlite and graphite, etc. which are used as supports for form-stable composite PCM along with their worldwide availability are extensively discussed. One of the main aims of this review paper is to focus on the test methods which are used to determine the chemical compatibility, thermal properties, thermal stability and thermal conductivity of the PCM. Hence, the details related to calibration, sample preparation, test cell and analysis of test results are comprehensively covered. Finally, because of the renewed interest in integration of PCM in wallboards and concrete, an up-to-date review with focus on PCM enhanced wallboard and concrete for building applications is added.

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Citations
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Journal ArticleDOI

Applications of sustainable polymer-based phase change materials in mortars composed by different binders

TL;DR: The proposed LS/PEG composite can be considered, therefore, as a promising PCM system for the different mortars analyzed, provided that an optimal composition is identified for each binder.
Journal ArticleDOI

Thermal energy storage cement mortar containing encapsulated hydrated salt/fly ash cenosphere phase change material: Thermo-mechanical properties and energy saving analysis

TL;DR: In this article , a thermal energy storage cement mortar (TESCM) with polyethylene glycol@SiO 2 -coated eutectic hydrated salt/fly ash cenosphere encapsulated PCM was developed.
Journal ArticleDOI

Preparation, characterization and thermal properties of surface-modified expanded perlite/paraffin as a form-stable phase change composite in concrete

TL;DR: In this paper, a surface modification method to prevent leakage of phase change materials (PCMs) from porous aggregates during heating/cooling cycles was proposed. But the results showed that using polystyrene as a coating material for EP/PA particles was a promising method for PCM leakage prevention.
Journal ArticleDOI

Effect of Summer Ventilation on the Thermal Performance and Energy Efficiency of Buildings Utilizing Phase Change Materials

TL;DR: In this article, the effect of summer ventilation on the thermal performance and energy efficiency of buildings utilizing phase change materials (PCMs) was analyzed in five cities located in different climate regions in China.
Journal ArticleDOI

Preparation and characterization of the shape-stabilized phase change material based on sebacic acid and mesoporous MCM-41

TL;DR: In this paper, shape-stabilized composite phase change materials composed of sebacic acid (SA) and MCM-41 were prepared by a facile blending and impregnating method.
References
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A review on buildings energy consumption information

TL;DR: In this article, the authors analyzed available information concerning energy consumption in buildings, and particularly related to HVAC systems, and compared different types of building types and end uses in different countries.
Journal ArticleDOI

Review on thermal energy storage with phase change materials and applications

TL;DR: The use of a latent heat storage system using phase change materials (PCMs) is an effective way of storing thermal energy and has the advantages of high energy storage density and the isothermal nature of the storage process.
Journal ArticleDOI

Review on thermal energy storage with phase change: materials, heat transfer analysis and applications

TL;DR: In this paper, a review of the history of thermal energy storage with solid-liquid phase change has been carried out and three aspects have been the focus of this review: materials, heat transfer and applications.
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Concrete: Microstructure, Properties, and Materials

TL;DR: Concrete: Microstructure, Properties, and Materials as mentioned in this paper provides complete details on the microstructure-property relationship approach to provide scientific explanation for the strength and durability of concrete.
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