3D Modeling of the Thermal Transfer through Precast Buildings Envelopes
| Autor: | Mohamed Ould Moussa, Mohamed Bakhouya, Soukayna Berrabah |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Convection
Work (thermodynamics) Technology Control and Optimization Computer science 020209 energy finite element method Energy Engineering and Power Technology 02 engineering and technology Thermal transfer Thermal heat transfer 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Engineering (miscellaneous) energy efficiency building envelopes Renewable Energy Sustainability and the Environment business.industry Structural engineering 021001 nanoscience & nanotechnology Thermal conduction Finite element method infrared measurement Heat transfer 0210 nano-technology business Building envelope Energy (miscellaneous) |
| Zdroj: | Energies, Vol 14, Iss 3751, p 3751 (2021) Energies Volume 14 Issue 13 |
| ISSN: | 1996-1073 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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