Sensitivity analysis of transient heat and moisture transfer in a bio-based date palm concrete wall

Alioua, Tarek; Agoudjil, Boudjemaa; Boudenne, Abderrahim; Benzarti, Karim

doi:10.1016/j.buildenv.2021.108019

Cited by 14 publications

(3 citation statements)

References 28 publications

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“…Nevertheless, the lack of knowledge regarding the intrinsic characteristics of porous materials, coupled with the large number of input parameters that are often challenging to measure, either analytically or experimentally, poses a significant obstacle to the implementation of such models. This challenge has led some researchers to conduct a parametric sensitivity study of the hygrothermal models to investigate the influence of parameters on heat and mass transfer [33][34][35][36]. At the material scale, Benkhaled et al [33] conducted a sensitivity analysis to identify the most influential parameters affecting hygrothermal transfer in hemp concrete.…”

Section: Coupled Heat and Moisture Transfer: A Literature Reviewmentioning

confidence: 99%

Experimental and Numerical Investigation of Hygrothermal Transfer through Bio-Based Materials: An Application to Wood–Cement Walls

Bakkour,

Ouldboukhitine,

Biwole

et al. 2023

Buildings

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In the context of the energy transition, new construction materials are emerging, notably bio-based materials such as wood concrete. This paper investigates the hygrothermal performance of walls constructed with wood–cement concrete. First, the thermal properties of wooden concrete, namely thermal conductivity, effusivity, and diffusivity, are experimentally characterized in both dry and wet conditions. Second, in situ measurements are carried out on a house in Lyon, a city in France, constructed with mono-layered wood–cement walls. This involves monitoring the temperature and relative humidity levels both inside and outside the building, as well as at three distinct positions within the wood walls over a 6-month period (from 20 April 2023 to 20 October 2023). The hygrothermal analysis at the center of the wall reveals that the wood wall effectively moderates fluctuations in the external temperature and relative humidity. Following this, a numerical study is performed to check the reliability of the adopted Reduced Heat, Air, and Mass (HAM) model to reproduce the hygrothermal performance of the wood–cement wall. The results show a strong agreement between the simulated and measured data, confirming the applicability of the ‘Reduced HAM’ model for the prediction of the hygrothermal behavior of wood–cement walls.

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Section: Coupled Heat and Moisture Transfer: A Literature Reviewmentioning

confidence: 99%

Experimental and Numerical Investigation of Hygrothermal Transfer through Bio-Based Materials: An Application to Wood–Cement Walls

Bakkour,

Ouldboukhitine,

Biwole

et al. 2023

Buildings

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show abstract

“…Moisture content [15,23,24,26,[48][49][50][51][52][53][54][55][56][57][58] Relative humidity [25,[59][60][61][62][63][64][65][66][67][68][69][70][71][72][73] Capillary pressure [74][75][76][77][78][79][80] Vapor pressure [81][82][83][84][85]…”

Section: Driving Potential Referencesmentioning

confidence: 99%

“…This software is used to model the hygrothermal behavior of multilayered building elements exposed to the natural climate. This model has been used by several researchers [59][60][61][62][63][64], with generally satisfactory results.…”

Section: Models Using Relative Humidity As Driving Potentialmentioning

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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Hygrothermal performance assessment of a bio-based building made with date palm concrete walls

Belloum

Agoudjil²,

Chennouf³

et al. 2022

Building and Environment

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Sensitivity analysis of transient heat and moisture transfer in a bio-based date palm concrete wall

Cited by 14 publications

References 28 publications

Experimental and Numerical Investigation of Hygrothermal Transfer through Bio-Based Materials: An Application to Wood–Cement Walls

Experimental and Numerical Investigation of Hygrothermal Transfer through Bio-Based Materials: An Application to Wood–Cement Walls

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

Hygrothermal performance assessment of a bio-based building made with date palm concrete walls

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