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3D Modeling of the Thermal Transfer through Precast Buildings Envelopes

Author

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  • Soukayna Berrabah

    (LERMA Lab, College of Engineering and Architecture, International University of Rabat, Parc Technopolis, Rocade de Rabat-Salé, Sala Al Jadida 11100, Morocco)

  • Mohamed Ould Moussa

    (LERMA Lab, College of Engineering and Architecture, International University of Rabat, Parc Technopolis, Rocade de Rabat-Salé, Sala Al Jadida 11100, Morocco)

  • Mohamed Bakhouya

    (LERMA Lab, College of Engineering and Architecture, International University of Rabat, Parc Technopolis, Rocade de Rabat-Salé, Sala Al Jadida 11100, Morocco)

Abstract

In this paper, a finite-element-based model is being introduced and developed, using the Cast3m (CEA, Paris, France) simulation tool, to evaluate the thermo-mechanical behavior of a small-scale test bed. In fact, many studies on thermal behavior of cavities have been carried out in literature. However, none of them took into account the co-existence of all thermal phenomena (conduction, convection, internal/external radiation). The work presented in this paper presents a thermo-mechanical model, which aims to combine, in a holistic way, these phenomena. An experimental validation of the thermal model has been first carried out using an infrared camera and DS18B20 (Maxim Integrated Products, Dallas, TX, USA) numerical sensors. Results are reported and show the accuracy of the proposed model since both numerical and experimental values of heat transmittance fit together. The main objective is to evaluate heat losses through the walls, by means of heat transmittance calculation, and proposing new functional materials that will help in energy harvesting, as a perspective of this work. As for the mechanical study, it was meant to investigate the distribution of the mechanical stress towards the building envelope submitted to its own weight. Results showed that the stress is uniformly distributed on the lateral walls of the structure as well as on the floor.

Suggested Citation

  • Soukayna Berrabah & Mohamed Ould Moussa & Mohamed Bakhouya, 2021. "3D Modeling of the Thermal Transfer through Precast Buildings Envelopes," Energies, MDPI, vol. 14(13), pages 1-25, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:13:p:3751-:d:580120
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    References listed on IDEAS

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    1. Francesco Bianchi & Anna Laura Pisello & Giorgio Baldinelli & Francesco Asdrubali, 2014. "Infrared Thermography Assessment of Thermal Bridges in Building Envelope: Experimental Validation in a Test Room Setup," Sustainability, MDPI, vol. 6(10), pages 1-14, October.
    2. Sofia Boulmrharj & Youssef NaitMalek & Abdellatif Elmouatamid & Mohamed Bakhouya & Radouane Ouladsine & Khalid Zine-Dine & Mohammed Khaidar & Mostapha Siniti, 2019. "Battery Characterization and Dimensioning Approaches for Micro-Grid Systems," Energies, MDPI, vol. 12(7), pages 1-13, April.
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    Cited by:

    1. Piotr Michalak, 2021. "Experimental and Theoretical Study on the Internal Convective and Radiative Heat Transfer Coefficients for a Vertical Wall in a Residential Building," Energies, MDPI, vol. 14(18), pages 1-22, September.

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