Experimental thermal characterization of bio-based materials (Aleppo Pine wood, cork and their composites) for building insulation

Limam, Amel; Zerizer, Abdellatif; Quénard, Daniel; Sallée, Hébert; Chenak, A.

doi:10.1016/j.enbuild.2016.01.007

Cited by 85 publications

(44 citation statements)

References 18 publications

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“…The new Energy Performance of Buildings Directive (EPBD) [1] promotes sustainable, economical and comfortable buildings for their residents. There are requirements for lower energy consumption, and more attention is being given to the use of hygroscopic materials from renewable sources [2,3], which are characterized by a lower negative impact on the environment. User comfort and indoor air quality have become important parameters to take into account when choosing building materials [4].…”

Section: Introductionmentioning

confidence: 99%

“…Palumbo et al [15] reported the MBV results for six different bio-based materials: hemp lime, hemp fibre, wood wool, wood fibre, barley-straw starch and corn pith-alginate. Novel bio-insulating particleboards made from bamboo powders and various bio-adhesives were investigated by Nguyen [16], and Limam et al [3] studied bio-based insulating materials based on various hemp and shive-fibre ratios.…”

Section: Introductionmentioning

confidence: 99%

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Moisture Buffering of Multilayer Internal Wall Assemblies at the Micro Scale: Experimental Study and Numerical Modelling

Kaczorek

2019

Applied Sciences

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In this paper, a series of experiments assessing the moisture buffer value (MBV) of four internal wall assembly samples made from hygroscopic materials was performed. A modified Nordtest protocol was used. Moisture buffer values of all the investigated wall assemblies, with varying moisture loads in the range of 50% to 80%, showed a moderate moisture buffer value (MBV: 0.5–1.0 (g·m−2·%RH−1)). The results showed that in a wall assembly where the MBV of the whole assembly is lower than the MBV of the outer layers, the moisture-buffering capacity of the inner layer is untapped. Outer layers affect inner layers by changing their moisture-buffering capacity, which in turn changes the overall performance of the whole assembly. In addition, it was observed that if the penetration depth value of the outer layer is greater than its thickness, vapour reaches into the deeper layer and wall assemblies made of layers with materials characterized by a lower value of penetration depth reach steady state more slowly. The WUFI Pro tool was used to compare the simulated and experimental results. Despite the discrepancies between these results, it offers a simplified method, helping designers make decisions about which materials to choose to improve the moisture-buffering effect.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Moisture Buffering of Multilayer Internal Wall Assemblies at the Micro Scale: Experimental Study and Numerical Modelling

Kaczorek

2019

Applied Sciences

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“…The use of other biowaste materials for thermal insulation has also been reported by previous studies. 71,72 Contrarily, some composite materials with good thermal conductivity have been developed for their use in electric batteries or energy storage devices for efficient heat dissipation during charging or discharging. 73 A study showed high-density polyethylene (HDPE), carbon nanotubes, and expanded graphite (EG) ternary composites with improved thermal conductivity using the ller network.…”

Section: Super Capacitancementioning

confidence: 99%

Properties of multifunctional composite materials based on nanomaterials: a review

Ali

Andriyana

2020

RSC Adv.

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“…Other works have shown that wood chips can help to reduce AC loads, for example in office building in Asia as an insulation of the roof [1][2][3][4][5]. The work presented in this paper is also conducted as a proof of concept study.…”

Section: Introductionmentioning

confidence: 98%

Feasibility of Using Wood Chips to Regulate Relative Humidity Inside a Building: A Numerical Study

Bigot¹,

Ott²,

Guichard³

et al. 2019

Journal of Renewable Materials

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The use of bio-based materials in buildings has become more and more significant last years. In most of the cases, their health properties and natural provenance have made them a great solution to face global climate warming and the new policies to reduce building energy consumption. In many thermal problems, biobased materials can allow to optimize the building thermal behavior according to its energy consumption and inside comfort conditions. So it is when they are used as an insulation material in the building. However, it is not the case in this paper. In fact, the bio-based matter is rather used as a desiccant wheel to control air conditioning inside the building.The aim of this paper is to numerically verify if it is possible to use a bed of wood chips as a hygroscopic material (or a desiccant matter) in order to modify the relative humidity inside the building in Reunion Island and so improve thermal comfort. A simple model of heat and mass transfer between a bed of wood chips and building inside air has been set up and implemented into a validated building simulation code named ISOLAB.Numerical simulations were set up for the four climate zones of the island regulations and a focus has been made on the low altitude one (with high, solar irradiation, temperature and relative humidity).Simulation results give the thermal behavior of the building particularly the temperature and relative humidity of inside air temperature, and temperature and moisture content of wood chips. The obtained results lead to determine if the wood chips bed is suitable for the reference building and to verify its technical feasibility (wood species, size of the bed, integration to the building, etc.). The results show that the use of a WCB help to decrease the building inside air temperature and water content up to 10°C less and 11.6 g.kg -1 less. These are the ways to improve inside comfort conditions. Indeed, comfort analysis have shown the possibility to significantly increase building users' thermal comfort when coupled with a fan and natural ventilation, like the regulation needs for low altitude climate. In this case, a gain of 68% of year time is achieved for a building equipped with WCB system compared to one without it (6308 hours of comfort over a year with the WCB against 350 hours without WCB). So the WCB seems to be able to help reducing cooling loads in tropical climate conditions.

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Experimental thermal characterization of bio-based materials (Aleppo Pine wood, cork and their composites) for building insulation

Cited by 85 publications

References 18 publications

Moisture Buffering of Multilayer Internal Wall Assemblies at the Micro Scale: Experimental Study and Numerical Modelling

Moisture Buffering of Multilayer Internal Wall Assemblies at the Micro Scale: Experimental Study and Numerical Modelling

Properties of multifunctional composite materials based on nanomaterials: a review

Feasibility of Using Wood Chips to Regulate Relative Humidity Inside a Building: A Numerical Study

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