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Статті в журналах з теми "Enveloppe passive du bâtiment":
Turki, Laila Koubaa, and Abdelkader Ben Saci. "Conception générative de morphologies solaires par échange d’ombrage." SHS Web of Conferences 147 (2022): 07001. http://dx.doi.org/10.1051/shsconf/202214707001.
Carvalho, Fanny Islana de Lima, Maria Cristina Rodrigues Halmeman, and Felipe Matos dos Santos Lerco. "Analyse de l’efficacité énergétique de la bibliothèque municipale de Campo Mourão-PR : paramètres du programme national de labellisation (RTQ-C)." Revista Científica Multidisciplinar Núcleo do Conhecimento, October 15, 2021, 43–62. http://dx.doi.org/10.32749/nucleodoconhecimento.com.br/ingenierie-de-lenvironnement-fr/bibliotheque-municipale.
Дисертації з теми "Enveloppe passive du bâtiment":
Wu, Dongxia. "Experimental and numerical study on passive building envelope integrated by PCM and bio-based concrete." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0104.
With the development of society, the demand for energy saving and carbon emission reduction in buildings as well as the indoor thermal and humidity environment comfort is gradually increasing. Using Phase change materials (PCMs) or bio-based hygroscopic materials as building envelopes are promising solutions. PCMs can improve indoor thermal comfort and reduce energy consumption, while bio-based hygroscopic materials are environment-friendly materials that enable indoor humidity regulation and thermal insulation. However, only a few studies have explored the integrated application of the two types of materials and comprehensively analyzed the energy and hygrothermal performance. This dissertation proposed a passive envelope solution that integrates PCM and bio-based hemp concrete (HC) to simultaneously improve the energy, thermal, and hygric performances of buildings. The main objectives of this study are to investigate the feasibility of the integrated envelopes, to comprehensively study the hygrothermal and energy performance as well as the advantages and disadvantages of different configurations with PCM placed in different locations of the HC, and to conduct the parametric analysis and evaluate the application risks of the integrated envelope.First, experiments were conducted by comparing the hygrothermal performance of a reference envelope (HC only) and three integrated envelopes with PCM placed in different locations under two typical boundary conditions. The results demonstrated the feasibility of the integrated envelopes. The presence of PCM increased the thermal and hygric inertia of the envelope. As a result, the time delay was increased and the temperature/relative humidity amplitude was decreased. Different configurations had different advantages and disadvantages. The configurations with PCM placed in the middle of the HC was worth noting as it had small temperature/relative humidity fluctuation, long temperature time delay, and large energy savings.Then, the mathematical model of the integrated envelope that couples heat and moisture transfer and considers the temperature dependence of HC’s hygroscopic characteristic was developed. The accuracy of the model was validated by comparison with the experimental data. Based on the validated model, the simulations were performed in a Mediterranean climate to comprehensively investigate the hygrothermal and energy performance of the integrated envelope. The results highlighted the indispensable role moisture transfer plays in determining the indoor hygric environment and heat load, as well as the valuable effect of the integrated envelope on improving both energy and hygrothermal performance. Besides, the integrated envelope with PCM close to (but not in contact with) the interior showed great potential for saving energy and adapting to climate humidity variation while guaranteeing moisture equilibrium within the HC.Finally, the parametric analysis was performed from the perspective of PCM properties (thickness, latent heat, and phase transition range), and the application (condensation and mold growth) risk was evaluated. The results of the parametric analysis illustrated that the performance of the integrated envelope could be improved by increasing the thickness and latent heat and identifying the appropriate phase transition range of the PCM. The risk evaluation results confirmed that the integrated envelope was free from the risk of condensation and mold growth
Barles, Pierre. "Comportement dynamique d'une boucle de chauffage à eau en interaction avec une enveloppe de bâtiment." Nice, 1990. http://www.theses.fr/1990NICE4427.
Costantine, Georges. "EOPEBEC - Etude et optimisation des performances énergétiques d’une enveloppe en béton de chanvre pour le bâtiment." Thesis, Reims, 2018. http://www.theses.fr/2018REIMS015/document.
In a context of global warming and planned end of fossil fuels, the construction industry aims to reduce by 38% its energy consumption and to achieve 10% of bio-based materials used in construction in 2020. Thus, the hemp concrete can play a major role thanks to its positive environmental impact and its hygrothermal properties that allow it to ensure a role of heat damper and comfort stabilizer. Or hygrothermal behavior of hemp concrete throughout the building is little discussed in the literature and never for commercial buildings. The main objective of this project is to fill this gap by studying and optimizing the energy performance of a hemp concrete building designed for offices and / or classrooms. To ensure inside thermal comfort, different technical solutions will be coupled to the building and compared with each other: - A double flow thermodynamical ventilation combining a heat pump with a double flow central. - A simple flow ventilation associated to a pipe system which recovers heat from the basement to preheat ventilation air in winter and cool in the summer. - A double flow ventilation associated to a Canadian well. Through computer simulation and measurements made initially at the level of components, it will be possible to evaluate the potential of each component on the energy and hygrothermal comfort of commercial buildings mainly integrating the project boundary Grand Campus Reims but also can be extended to other French specificity climates
Bahrar, Myriam. "Contribution au développement et à l’analyse d’une enveloppe de bâtiment multifonctionnelle dans le cadre de l’optimisation du confort dans l’habitat." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEE001/document.
The building sector has a great potential to improve energy efficiency and reduce the greenhouse gas emissions. Improvements to the building envelope and Innovations in building materials have the potential to achieve sustainability within the built environment. This PhD thesis focuses on the development of multifunctional façade elements in order to optimize the building energy consumption while maintaining an optimal indoor human thermal comfort. The proposed solution consist of using passive storage by means of phase change materials associated with alternative construction materials such as textile reinforced concrete (TRC). The aim of the study is to characterize mechanical and thermal properties of TRC composites and to evaluate the effect of PCMs on indoor thermal comfort. To meet these objectives, experimental devices have been set up for the characterization (at the component scale and in situ) of the mechanical and thermal behaviour of different TRC panels. In parallel, we have developed a numerical model for the prediction of wall temperature profiles. Finally, a multi-objective optimization of the façade elements is carried out using genetic algorithms to determine the better combinations able to combine the energy performance with the mechanical performance
Belleudy, Clément. "Modélisation des transferts d’air et leur impact sur le comportement hygrothermique de l'enveloppe des bâtiments." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREA0002/document.
Within the context of more stringent buildings codes, mastering airtightness is of importance to achieve energy efficient buildings. Unintended air leakage through the building envelope, which is due to bad design and poor workmanship, not only increases energy consumption, but also leads to moisture disorders, affecting building durability and occupants health. This moisture risk is present in particular for lightweight structures such as timber frame buildings, which are sensitive to air leakage.It is therefore necessary to better understand and to assess the impact of unintented air transfers on the hygrothermal field and the heat flux in the vicinity of an airtightness defect. To this end, two numerical models are developped, dealing with Heat-Air (HA) and Heat-Air-Moisture (HAM) transfer respectively. The HAM model is firstly validated in 1D using numerical benchmarks from literature. Then, temperature measurements in a cellulose insulation layer subjected to moist air flow are compared with the models outputs, and good agreement is obtained. The HAM model provides a better prediction of the temperature field compared to the HA model.Following this 2D experimental validation of the HAM model, it is applied to a complex defect geometry, including porous insulation materials and thin air gaps. This defect is meant to be realistic, as it is drawn from a measurement campaign aiming to identify typical envelope leakage points encountered in timber frame buildings.Long term simulations are performed under transient temperature and humidity conditions, in case of air exfiltration and air infiltration. This study helps identifying tendencies towards moisture risk: infiltrating air flow dries the assembly whereas exfiltrating air flow humidifies it. A methodology to assess heat fluxes through the defect is presented.Finally, a simplified approach is derived from the detailed HAM-model, to take into account the contribution of airtightness defects on the total heat loss on the building scale. It is shown that the additional heat loss induced by an airtightness defect may be described by a specific heat loss coefficient. In addition, the coupling between air flow and envelope has a significant impact on total heat flux calculations. The influence of moisture transfers on observed tendencies is also discussed
Bélanger, Jean. "Caractérisation des transferts hygrothermiques dans une enveloppe de bâtiment en bois par la résolution d'un problème inverse par l'optimisation des propriétés physiques des matériaux." Master's thesis, Université Laval, 2021. http://hdl.handle.net/20.500.11794/69706.
Ratovonkery, Julie. "DYNABIOSOL : Conception bio-inspirée d'une enveloppe solaire Photovoltaïque dynamique aux fonctionnalités évolutives." Electronic Thesis or Diss., Chambéry, 2023. http://www.theses.fr/2023CHAMA027.
Climate change, growing energy demand and depletion of fuel resources have led to increasingly high energy and environmental ambitions. These ambitions aim for resilient, sustainable, zero carbon and positive energy buildings in the building sector. Radical innovation in building envelope technologies is paramount as it is a key element in building energy efficiency. Indeed, the envelope is often designed on the basis of static functionalities rather than an adaptive and multifunctional interface. However, in the latter case, it would interact with and benefit from the effects of its external environment to ensure a comfortable indoor environment and the production of the building operating energy.In this context, this thesis consists in the design of an adaptive facade with integrated photovoltaic (PV) components. The adaptive functionalities are developed to improve both the thermal performance of the facade and the electrical production of the PV modules. Designing such an envelope element often requires complex mechanical and control systems to implement dynamic and adaptive functionalities. For this reason, we have chosen to adopt a bioinspiration approach and use smart materials to achieve flexible and low-tech adaptation mechanisms.The methodology involves the analysis of the thermal and electrical behaviour of a standard photovoltaic facade. In our case, it comprises bifacial PV modules, a ventilated air gap and a multilayer wall. The principle is to identify the properties limiting that facade to static functionalities. From this step, biological mechanisms related to the identified properties, and that can overcome the limitations are explored. Afterwards, smart materials enabling to implement the bioinspired strategies are selected. Finally, the outline of the new concept is developed with the principles involved. The solution is validated through experimental studies on the samples of the selected materials and on a reduced-scale prototype of the facade. Numerical feasibility studies and energy performance analysis at the building scale are also carried out.The developed solution consists in the application of thermosensitive and reflective bilayer components on the wall behind the PV modules. Those components are thin rectangular slats applied opposite to the PV cells. When the temperature rises, they gradually bend. Their cyclic deformation allows the adjustment of the facade functionalities according to three principles. First, in summer, the PV facade is cooled by shading the wall and dissipating heat through the increased thermal surface exchange in the air gap. Second, in winter, solar thermal energy is harvested by closing the air gap or recovering preheated air. Finally, the bilayers enhance the PV power output because of their high reflection of the irradiance to the backside of the bifacial PV modules. The experimental and numerical studies have validated the potential of the design to improve building energy efficiency, especially for increasing yearly electricity production and thermal performance in summer
Janvier, Damien. "Contribution à la modélisation simplifiée de l'enveloppe du bâtiment et des ambiances thermo-aérauliques." Reims, 2003. http://www.theses.fr/2003REIMS003.
Merabtine, Abdelatif. "Modélisation Bond Graphs en vue de l'Efficacité Énergétique du Bâtiment." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0121/document.
Our works focus on the setting of reliable tools able to analyze the interaction between the building envelope and HVAC systems. The developed approach is based on Bond Graphs methodology, a graphical modeling language which is particularly suitable for energy exchanges. A numerical model gathering, under the same simulation environment, sub-models representing the building envelope, the solar gains, the floor heating, the chilled ceiling and the ventilation system, is developed in order to predict the energy interactions between these sub-systems. The multi-zone building model is developed in order to simulate and analyze the overall building thermal behavior. Then, the solar gains model is also included to predict the solar radiation exchanges in a way close to reality. The model of the heating and cooling system, combining the floor heating and the chilled ceiling, is developed in order to improve the thermal comfort of the building. Afterwards, the ventilation system is modeled in order to represent the air exchange inside the building. The experimental validation is carried out on the tri-generation unit integrated with a thermal solar system (platform ENERBAT). Furthermore, the parametrical study was realized in order to gain a better understanding according to the impact of some factors in the energy performance of the single-family building located in Meurthe-et-Moselle region (France). Optimization of several measures, such as insulation of the building envelope, type of glazing, building orientation and ventilation system, is performed to respond to the requirements of the French thermal standard (RT2012)
Abdelatif, Merabtine. "Modélisation Bond Graphs en vue de l'efficacité énergétique du bâtiment." Phd thesis, Université de Lorraine, 2012. http://tel.archives-ouvertes.fr/tel-00789679.