Multilayer assembly of phase change material and bio-based concrete: A passive envelope to improve the energy and hygrothermal performance of buildings

Wu, Dongxia; Rahim, M. Kaysar; Ganaoui, Mohammed El; Bennacer, Rachid; Liu, Bin

doi:10.1016/j.enconman.2022.115454

Cited by 21 publications

(4 citation statements)

References 48 publications

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“…Phase change materials (PCMs) involve the incorporation of phase transitioning materials into concrete mixes, which can help improve the thermal performance of concrete structures in cold weather [209]. PCMs can store and release thermal energy as they undergo phase transitions, effectively acting as thermal batteries that help regulate the temperature of concrete structures and reduce the risk of frost damage or freeze-thaw deterioration [64].…”

Section: Phase Change Materialsmentioning

confidence: 99%

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

Nilimaa

Zhaka

2023

Eng

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Cold weather conditions pose significant challenges to the performance and durability of concrete materials, construction processes, and structures. This paper aims to provide a comprehensive overview of the material-related challenges in cold weather concrete construction, including slow setting, reduced curing rate, and slower strength development, as well as frost damage, early freezing, and freeze–thaw actions. Various innovative materials and technologies may be implemented to address these challenges, such as optimizing the concrete mix proportions, chemical admixtures, supplementary cementitious materials, and advanced construction techniques. The paper also examines the impact of weather-related challenges for personnel, equipment, and machinery in cold environments and highlights the importance of effective planning, communication, and management strategies. Results indicate that the successful implementation of appropriate strategies can mitigate the challenges, reduce construction time, and enhance the performance, durability, and sustainability of concrete structures in cold and freezing temperatures. The paper emphasizes the importance of staying updated about the latest advancements and best practices in the field. Future trends include the development of smart and functional concrete materials, advanced manufacturing and construction techniques, integrated design, and optimization of tools, all with a strong focus on sustainability and resilience.

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Section: Phase Change Materialsmentioning

confidence: 99%

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

Nilimaa

Zhaka

2023

Eng

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“…Recently, Wu et al [37] proposed a passive envelope solution that integrates a hydrocarbonbased PCM and hemp concrete to improve buildings' energy, thermal, and hydric performances simultaneously. The relative humidity and temperature are chosen as driving potentials of moisture and heat transfer, respectively.…”

Section: Pcms In Ham Modelsmentioning

confidence: 99%

“…PCMs and hygroscopic materials can be combined to improve the performance of building envelopes as a whole [36,37]. Energy efficiency, temperature regulation, and moisture control can all be improved at once by combining the thermal inertia of PCMs with the moisture inertia of hygroscopic materials.…”

Section: Introductionmentioning

confidence: 99%

A Review on Numerical Modeling of the Hygrothermal Behavior of Building Envelopes Incorporating Phase Change Materials

Sawadogo,

Godin,

Duquesne

et al. 2023

Buildings

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Buildings are submitted to various external and internal solicitations that could affect its energy performance. Among these solicitations, temperature and moisture play a crucial role and could irrevocably affect the comfort of the occupants and the indoor air quality of the living environment. To assess the impact of the solicitation on building performance, a precise modeling of the heat, air, and moisture transfer phenomenon is necessary. This work proposes an extensive review of the hygrothermal models for building envelopes. The different models are divided into nodal and HAM techniques for heat, air, and moisture (HAM) transfer models. The HAM approach has been classified based on four driving potentials: moisture content, relative humidity, capillary pressure, and vapor pressure. Phase change materials (PCMs), alongside hygroscopic materials, enhance building thermal capacity and energy efficiency. There are various approaches to studying phase changes, with enthalpy-based and heat capacity approaches being the most popular. Building performance can be improved by combining PCM thermal inertia with hygroscopic moisture management. This review has exhibited the need for numerical models that address phase change and moisture behavior in these hybrid materials, capable of controlling temperature and humidity.

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“…Alshuraiaan et al [40] discovered that using phase change materials (PCMs) to improve building thermal performance can reduce heat flow into the building by more than 50%. Wu et al [41] found that using multi-layer assemblies of phase change materials and bio-based concrete to improve building thermal performance in summer scenarios could reduce the maximum heat load by 8.2%, temperature fluctuations by 46.3%, and local vapor pressure fluctuations by 43.7%, which could enhance indoor thermal comfort. Aslani et al [42] found that buildings with DSW R-50 walls in the building envelope consume 75% less energy than conventional buildings.…”

Section: Literature Reviewmentioning

confidence: 99%

Building Thermal and Energy Performance of Subtropical Terraced Houses under Future Climate Uncertainty

et al. 2023

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Due to global temperature increases, terraced house (TH) residents face a threat to their health due to poor indoor thermal environments. As buildings are constructed by low-income residents without professional guidance, this study aims to investigate the indoor thermal comfort and energy resilience of THs under the future climate and determine the optimal passive design strategies for construction and retrofitting. By exploring the effects of building envelope structures, adjusting the window-to-wall ratio (WWR) and designing shading devices, EnergyPlus version 22.0 was used to optimize the thermal environment and cooling load of THs throughout their life cycle under future climate uncertainties. Unimproved THs will experience overheating for nearly 90% of the hours in a year and the cooling load will exceed 60,000 kWh by 2100 under the Representative Concentration Pathways (RCP) 8.5 scenario. In contrast, optimization and improvements resulted in a 17.3% reduction in indoor cooling load by increasing shading devices and the WWR, and using building envelope structures with moderate thermal insulation. This study can guide TH design and renovation, significantly reducing indoor cooling load and enabling residents to better use active cooling to combat future overheating environments.

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Multilayer assembly of phase change material and bio-based concrete: A passive envelope to improve the energy and hygrothermal performance of buildings

Cited by 21 publications

References 48 publications

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

An Overview of Smart Materials and Technologies for Concrete Construction in Cold Weather

A Review on Numerical Modeling of the Hygrothermal Behavior of Building Envelopes Incorporating Phase Change Materials

Building Thermal and Energy Performance of Subtropical Terraced Houses under Future Climate Uncertainty

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