Analysis of Heat Transfer Phenomena inside Concrete Hollow Blocks

Sassine, Emilio; Chérif, Y.; Antczak, Emmanuel; Dgheim, Joseph; Fakhoury, Joelle Al; Chartier, Thierry

doi:10.30564/jbms.v4i1.4500

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…The same experimental set-up presented in other research work (Al Fakhoury et al, 2022a) was used in this investigation to determine the thermal properties of the hollow block and the assembly mortar using the fluxmeter method.…”

Section: Experimental Methodologymentioning

confidence: 99%

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Numerical and experimental analysis of building walls thermal performance

Al Fakhoury,

Sassine,

Cherif

et al. 2024

Journal of Building Physics

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The building sector represents a significant proportion of the world’s energy consumption and greenhouse gas emissions. One of the possible contributions to reducing this problem is to improve the energy performance of buildings by acting on their envelope and systems. Consequently, the aim of this work is to develop an experimental and numerical methods for characterizing the thermal performance of a concrete masonry hollow wall, in order to propose a new configuration that can be used to improve its thermal performance. First, this study focuses on the thermal performance of different wall configurations. Then, each case studied at wall scale, was modeled, and simulated in 3D using COMSOL Multiphysics® software under the same conditions, properties and dimensions as the one tested experimentally. Finally, this analysis was applied to a real building in Lebanon, consisting of hollow concrete masonry walls, to study its energy and thermal requirements. The conclusions showed that the numerical and experimental results proposed for the hollow masonry block wall confirm a good match. This validates the value of this method in the construction sector by proposing new methods for improving its thermal and energy performance.

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Section: Experimental Methodologymentioning

confidence: 99%

“…After the determination of the equivalent thermal properties of the wall components, special attention was given to the analysis of the heat transfer inside the hollow block to determine its equivalent thermal resistance (Al Fakhoury et al, 2022a).…”

Section: Experimental Methodologymentioning

confidence: 99%

Numerical and experimental analysis of building walls thermal performance

Al Fakhoury,

Sassine,

Cherif

et al. 2024

Journal of Building Physics

Self Cite

View full text Add to dashboard Cite

show abstract

“…A combination of experimental results and FE modelling was used to study the thermal performance of concrete block walls. The impact of the unit geometry, concrete mix, and properties of the insulation materials installed in the cavities is part of planned future investigations [38]. A combination of FE modelling and experimental validation was used to understand the contribution of thermal insulation to the thermal performance of concrete block walls.…”

Section: Research Focusing On the Thermal Performance Of Wallsmentioning

confidence: 99%

Meta-Narrative Review of Artificial Intelligence Applications in Fire Engineering with Special Focus on Heat Transfer through Building Elements

Bakas

Kontoleon

2023

Fire

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Artificial intelligence (AI), as a research and analysis method, has recently been gaining ground in the ever-evolving scientific field of fire engineering in buildings. Despite the initial delay in utilising machine learning and neural networks due to the shortfall of available computational power, a review of cutting-edge scientific research demonstrates that scientists are now exploring and routinely incorporating such systems in their research processes. As such, a considerable volume of new research is being produced comprising applications of AI in fire engineering. These findings and research questions ought to be summarised, organised, and made accessible for further investigation and refinement. The present study aims to identify recent scientific publications relating to artificial intelligence applications in fire engineering, with particular focus on those tackling the issue of heat transfer through building elements. The method of the meta-narrative review, as implemented in the field of medical advancement research, is discussed, adapted, and finally utilised to weave a narrative that enables the reader to follow the most recent, influential, and impactful works. Efforts are made to uncover trends in the search for heat transfer models and properties under fire loading using AI. The review concludes with our thoughts on how future research can enrich the current findings on heat transfer in buildings exposed to fire actions and elevated temperatures.

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Enhancements in Hollow Block Technology: Comprehensive Thermal and Mechanical Characterizations

Dgheim,

Rizk,

Cherif

et al. 2024

Energies

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This research explores the thermal and mechanical properties enhancement in hollow concrete blocks by incorporating recycled expanded polystyrene (EPS) and crumb rubber (CR). Key thermal properties—including average thermal resistance (R¯), average thermal conductivity (λ¯), and average specific heat (Cp¯)—were analyzed, while mechanical properties were evaluated via compressive strength tests. Findings indicate that the addition of EPS and CR significantly improved thermal resistance, with specific heat and compressive strength remaining within acceptable thresholds. The optimal mixture of 35% EPS and 5% rubber by volume led to a remarkable 49.67% increase in thermal resistance compared to standard hollow blocks while still achieving a compressive strength (σ¯) around 7 MPa. These results classify the blocks as non-load-bearing, highlighting their potential for energy-efficient construction using sustainable materials. This research advances sustainable building materials by providing practical solutions to improve building performance in Lebanon.

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Analysis of Heat Transfer Phenomena inside Concrete Hollow Blocks

Cited by 3 publications

References 17 publications

Numerical and experimental analysis of building walls thermal performance

Numerical and experimental analysis of building walls thermal performance

Meta-Narrative Review of Artificial Intelligence Applications in Fire Engineering with Special Focus on Heat Transfer through Building Elements

Enhancements in Hollow Block Technology: Comprehensive Thermal and Mechanical Characterizations

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