Qualitative and quantitative optimization of thermal insulation materials: Insights from the market and energy codes

Kalhor, Koosha; Emaminejad, Newsha

doi:10.1016/j.jobe.2020.101275

Cited by 26 publications

(22 citation statements)

References 35 publications

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“… Nano-insulation materials (NIMs): Another strategy to improve the energy performance of wood buildings is the use of nanotechnology-based insulation materials or NIMs. These materials are homogeneous composites consisting of open or closed nanopore particles in the range of 0.1 nm–100 nm in size with low thermal conductivity (less than 0.04 W/mK) in perfect conditions [ 216 ]. According to Gao et al, NIMs have a thermal conductivity of about 0.02 W/mK on account of the predominantly size-dependent thermal conduction that occurs at the nanometer scale.…”

Section: Strategies To Improve Building Energy Efficiencymentioning

confidence: 99%

A State of the Art of the Overall Energy Efficiency of Wood Buildings—An Overview and Future Possibilities

Cabral

Blanchet

2021

Materials

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The main goal of this study was to review current studies on the state of the art of wood constructions with a particular focus on energy efficiency, which could serve as a valuable source of information for both industry and scholars. This review begins with an overview of the role of materials in wood buildings to improve energy performance, covering structural and insulation materials that have already been successfully used in the market for general applications over the years. Subsequently, studies of different wood building systems (i.e., wood-frame, post-and-beam, mass timber and hybrid constructions) and energy efficiency are discussed. This is followed by a brief introduction to strategies to increase the energy efficiency of constructions. Finally, remarks and future research opportunities for wood buildings are highlighted. Some general recommendations for developing more energy-efficient wood buildings are identified in the literature and discussed. There is a lack of emerging construction concepts for wood-frame and post-and-beam buildings and a lack of design codes and specifications for mass timber and hybrid buildings. From the perspective of the potential environmental benefits of these systems as a whole, and their effects on energy efficiency and embodied energy in constructions, there are barriers that need to be considered in the future.

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Section: Strategies To Improve Building Energy Efficiencymentioning

confidence: 99%

A State of the Art of the Overall Energy Efficiency of Wood Buildings—An Overview and Future Possibilities

Cabral

Blanchet

2021

Materials

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“…For insulation materials, numerous studies have been developed and many Environmental Product Declarations are available from different producers [20]. On the building element level, researchers compared the environmental impact of different insulation materials and concluded that insulation is beneficial for the whole life cycle [21], [22]. When a whole building is assessed, mass and energy flows shall be quantified based on a building model according to EN 15978 [23] and ISO 21931 [24].…”

Section: Literature Reviewmentioning

confidence: 99%

Global warming potential of building constructions based on heat and moisture transport analysis

2022

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Global Warming Potential (GWP) is one of the most important Life Cycle Assessment (LCA) indicator, which shows how much heat a greenhouse gas traps in the atmosphere relative to carbon dioxide. In this study, we calculated the GWP of a highly insulated building construction detail of a residential nearly-zero energy building (nZEB) based on numerical simulations. To calculate the heat loss of building constructions, which is necessary for estimating the operational energy demand in the use phase of the building, we compared two numerical simulation methods: 2D thermal simulations and 2D conjugated heat and moisture transfer (HAM) simulations. Besides that, we compared the effect of selecting different thermal insulation materials for insulating the building constructions, such as EPS, mineral wool and wood wool. We then compared the thermal and linear thermal transmittances from the simulations besides evaluating the moisture transmittance behaviour of the constructions. In all examined scenarios, the constructions with mineral wool ended up being the highest impact alternative, while EPS was the lowest for walls and wood wool was for wall corner joints. We also found that including the wall corner joints in GWP calculations could increase the overall GWP of an average-sized family house by 10%. Our study shows the HAM induced differences between thermal insulations, and demonstrates that HAM modelling-based LCA of building construction details gives valuable additional information to designers to choose the proper thermal insulation.

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“…An upsurge in global energy consumption results from a striking increase in urban and industrial activities depending on the rapid growth of population size [1]. The energy need in developing countries has increased since new building constructions [2].…”

Section: Introductionmentioning

confidence: 99%

Study of physical and mechanical properties of aerogel-modified expanded perlite aggregate and clay (AEP/C) board

Mercan

Yılmazer

2022

Construction and Building Materials

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Qualitative and quantitative optimization of thermal insulation materials: Insights from the market and energy codes

Cited by 26 publications

References 35 publications

A State of the Art of the Overall Energy Efficiency of Wood Buildings—An Overview and Future Possibilities

A State of the Art of the Overall Energy Efficiency of Wood Buildings—An Overview and Future Possibilities

Global warming potential of building constructions based on heat and moisture transport analysis

Study of physical and mechanical properties of aerogel-modified expanded perlite aggregate and clay (AEP/C) board

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