- Building Energy Simulation, Daylighting, Architectural Design, Daylight Factor simulation methods, Daylight, Modélisation, Green Architecture and Environmental Design, and 12 moreThermal comfort, Daylighting, Sustainable Design, Double Skin Facades, Building Hydrology, Dehumidification, Historic Preservation, Renewable Energy, Energy Efficiency Buildings, Dynamic Thermal Simulation of Buildings, Energy efficiency, and Building Integrated Renewable Energyedit
- Ph.D. in Physics applied to Building.
My research topics are related to lighting (artificial and natural), thermal and visual comfort, innovative devices or insulation, applied to the building.edit
Les conduits de lumière de type MLP (Mirrored Light Pipe) permettent de transporter et de distribuer de la lumière naturelle dans des pièces sombres éloignées des ouvertures traditionnelles. Il offre l’avantage de réduire au minimum la... more
Les conduits de lumière de type MLP (Mirrored Light Pipe) permettent de transporter et de distribuer de la lumière naturelle dans des pièces sombres éloignées des ouvertures traditionnelles. Il offre l’avantage de réduire au minimum la perte de lumière, tout en limitant la transmission de chaleur. Ils font partie de la catégorie des convoyeurs à réflexion spéculaire multiple. Il s’agit de collecter, concentrer et dévier la lumière du soleil à l’aide d’un dôme placé en toiture. Celle-ci est ensuite acheminée à travers un tube aux parois hautement réfléchissantes puis diffusée au sein du local à l’aide d’un diffuseur.
Au cours des dernières décennies, de nombreux auteurs ont établis des modèles de prédiction des performances de ces dispositifs tubulaires en fonction des diverses configurations existantes. Cette variété d’approche a eu pour conséquence directe une dispersion des résultats des performances des conduits de lumière et une incohérence par rapport aux performances réelles de ce dispositif.
L’objectif de cette publication est de mettre en avant la disparité de ces modèles. Une étude bibliographique des différentes approches et une analyse comparative ont été réalisées. La cohérence des résultats théoriques a été évaluée à partir des données empiriques résultantes de l’expérimentation échelle 1:1 en condition météorologique réelle en cours.
Il en résulte que les divers modèles sélectionnés ont tendance à surestimer ou sous-estimer le phénomène réel. L’utilisation d’une base de données expérimentales a permis de mettre en avant les plus performants et les plus prometteurs.
Les perspectives futures de notre étude qui en ressortent se basent principalement sur la mise en place d’un nouveau modèle de prédiction des performances des conduits de lumière.
Au cours des dernières décennies, de nombreux auteurs ont établis des modèles de prédiction des performances de ces dispositifs tubulaires en fonction des diverses configurations existantes. Cette variété d’approche a eu pour conséquence directe une dispersion des résultats des performances des conduits de lumière et une incohérence par rapport aux performances réelles de ce dispositif.
L’objectif de cette publication est de mettre en avant la disparité de ces modèles. Une étude bibliographique des différentes approches et une analyse comparative ont été réalisées. La cohérence des résultats théoriques a été évaluée à partir des données empiriques résultantes de l’expérimentation échelle 1:1 en condition météorologique réelle en cours.
Il en résulte que les divers modèles sélectionnés ont tendance à surestimer ou sous-estimer le phénomène réel. L’utilisation d’une base de données expérimentales a permis de mettre en avant les plus performants et les plus prometteurs.
Les perspectives futures de notre étude qui en ressortent se basent principalement sur la mise en place d’un nouveau modèle de prédiction des performances des conduits de lumière.
Research Interests: Sustainable Building Design, Building Information Modeling, Energy Efficiency Buildings, Building Energy Simulation, Building Integrated Solar Energy Technologies, and 15 moreDaylight Factor simulation methods, Daylight Assessment, Green Building, Building Technology, Building Construction, Daylight, Daylighting, Architectural Design, Daylight modelling, Daylighting, Daylight Simulation, Thermal Comfort, Ventilation and Daylight in a Building, Visual Comfort and Daylighting, Daylight and Thermal Comfort Study, Daylighting Simulation, and Daylight Simulation. Photometry
CODYRUN is a multi-zone software integrating thermal building simulation, airflow, and pollutant transfer. Described in numerous publications, this softwarewas originally used forthe passive designof buildings, both for research and... more
CODYRUN is a multi-zone software integrating thermal building simulation, airflow, and
pollutant transfer. Described in numerous publications, this softwarewas originally used forthe passive
designof buildings, both for research and teaching purposes.In this context, the datatreatedwere mainly
concerned with volumes (zones), surfaces andthicknesses (walls andwindows), materials, and systems,
with the aim to determine temperatures,heat fluxes,energy consumed, air transfers, and so on.
The questionthus arose as tothe integration ofindoor lighting conditions into the simulation.
Hence, previousdata structureshad to beamended to incorporatethe spatial positioning ofentities (walls,
windows, and artificial lighting sources) throughvertexes. A set ofprocedureswasalso developed for
polygons as well as calculatingnatural and artificial lighting.
The results ofthis new daylighting modulewere thencompared with otherresultsof simulation
codes and experimentalcases both in artificialand naturalenvironments. Excellent agreements were
obtained, such as the values for luminous efficiencies ina tropical and humid climate.
A simulation exercise was conducted in a classroom located in Reunion Island (French overseas
territory in the Indian Ocean), thus confirming the interest for thermal and daylighting designsin lowenergy
buildings.
pollutant transfer. Described in numerous publications, this softwarewas originally used forthe passive
designof buildings, both for research and teaching purposes.In this context, the datatreatedwere mainly
concerned with volumes (zones), surfaces andthicknesses (walls andwindows), materials, and systems,
with the aim to determine temperatures,heat fluxes,energy consumed, air transfers, and so on.
The questionthus arose as tothe integration ofindoor lighting conditions into the simulation.
Hence, previousdata structureshad to beamended to incorporatethe spatial positioning ofentities (walls,
windows, and artificial lighting sources) throughvertexes. A set ofprocedureswasalso developed for
polygons as well as calculatingnatural and artificial lighting.
The results ofthis new daylighting modulewere thencompared with otherresultsof simulation
codes and experimentalcases both in artificialand naturalenvironments. Excellent agreements were
obtained, such as the values for luminous efficiencies ina tropical and humid climate.
A simulation exercise was conducted in a classroom located in Reunion Island (French overseas
territory in the Indian Ocean), thus confirming the interest for thermal and daylighting designsin lowenergy
buildings.
Research Interests: Sustainable Building Design, Building Information Modeling, Energy Efficiency Buildings, Building Energy Simulation, Building Integrated Solar Energy Technologies, and 10 moreDaylight Factor simulation methods, Daylight, Daylighting, Architectural Design, Daylight modelling, Daylighting, Daylight Simulation, Visual Comfort and Daylighting, Daylighting Systems in Schools, Daylighting Simulation, and Green Bulding Tecnologyand Applcaton
The light pipes are innovative devices able to transport and distribute natural light without heat transfer in dark rooms. There are a lot of natural lighting applications able to predict the behaviour of light in a room through a... more
The light pipes are innovative devices able to transport and distribute natural light without heat transfer in dark rooms. There are a lot of natural lighting applications able to predict the behaviour of light in a room through a traditional opening. Only few of them are able to model complex systems such as daylight guidance systems. Added to this, they seem to provide disparate and inconsistent results with respect to the actual performance of light pipes. The purpose of this publication is to present the approach undertaken and the results obtained to highlight the problem. To do this, a survey of the different programs has been carried out internationally to model tubular devices. Then, an inter-software comparative analysis was implemented for some of the applications listed. In order to assess the accuracy of numerical results, the results of an experiment - 1:1 scale and in real weather conditions - were used as references to evaluate the chosen applications. We saw that the various selected programs tend to overestimate or underestimate the real phenomenon. The use of an experimental database permitted to put forward the most efficient applications. These results support the future goal to develop a new model. Future prospects of our study that can emerge are mainly based on the introduction of a new model for predicting the performance of light pipes and its integration in two software products developed within laboratory: CODYRUN (a multi-zone software integrating thermal building simulation, airflow transfers, lighting and pollutants) and HEMERA (a daylighting analysis software).
Research Interests: Sustainable Building Design, Building Information Modeling, Building Energy Simulation, Building Integrated Solar Energy Technologies, Lighting Design for Performance, and 5 moreDaylighting, Architectural Design, Daylight modelling, Daylighting, Daylight Simulation, and Visual Comfort and Daylighting
The work presented in this paper aims to compare two different climates in Australia and Reunion Island and to identify the similarities in terms of bioclimatic design of low energy building. This approach is to perform a real evaluation... more
The work presented in this paper aims to compare two different climates in Australia and Reunion Island and to identify the similarities in terms of bioclimatic design of low energy building. This approach is to perform a real evaluation of the sensation of thermal comfort in the workplace for different climates on the basis of the "bioclimatic chart" developed by Baruch Givoni.
This article discusses the comparison of the thermal comfort levels obtained in the same building located in Australia and Reunion Island for different climatic zones.
Both countries are influenced by the ocean and the altitude but are located at very different latitudes. Australia is a large area with several types of climate: temperate in south-eastern and south-west, desert or semi-arid in most parts of the territory, and tropical climate in the northern zone of the continent. Reunion has a tropical climate that can be affected by the altitude.
Bioclimatic design strategies are different for wet and dry tropical climates, but in terms of targets at low energy, some basic principles can be identical and can be applied around the world.
If a building is well designed and well adapted to its local climate, it is possible to apply the same design rules and standards for all buildings and two for these two different climates.
This article discusses the comparison of the thermal comfort levels obtained in the same building located in Australia and Reunion Island for different climatic zones.
Both countries are influenced by the ocean and the altitude but are located at very different latitudes. Australia is a large area with several types of climate: temperate in south-eastern and south-west, desert or semi-arid in most parts of the territory, and tropical climate in the northern zone of the continent. Reunion has a tropical climate that can be affected by the altitude.
Bioclimatic design strategies are different for wet and dry tropical climates, but in terms of targets at low energy, some basic principles can be identical and can be applied around the world.
If a building is well designed and well adapted to its local climate, it is possible to apply the same design rules and standards for all buildings and two for these two different climates.
This article discusses the comparison of the thermal comfort levels obtained in the same building located in Australia and Reunion Island for different climatic zones.
Both countries are influenced by the ocean and the altitude but are located at very different latitudes. Australia is a large area with several types of climate: temperate in south-eastern and south-west, desert or semi-arid in most parts of the territory, and tropical climate in the northern zone of the continent. Reunion has a tropical climate that can be affected by the altitude.
Bioclimatic design strategies are different for wet and dry tropical climates, but in terms of targets at low energy, some basic principles can be identical and can be applied around the world.
If a building is well designed and well adapted to its local climate, it is possible to apply the same design rules and standards for all buildings and two for these two different climates.
This article discusses the comparison of the thermal comfort levels obtained in the same building located in Australia and Reunion Island for different climatic zones.
Both countries are influenced by the ocean and the altitude but are located at very different latitudes. Australia is a large area with several types of climate: temperate in south-eastern and south-west, desert or semi-arid in most parts of the territory, and tropical climate in the northern zone of the continent. Reunion has a tropical climate that can be affected by the altitude.
Bioclimatic design strategies are different for wet and dry tropical climates, but in terms of targets at low energy, some basic principles can be identical and can be applied around the world.
If a building is well designed and well adapted to its local climate, it is possible to apply the same design rules and standards for all buildings and two for these two different climates.
Research Interests:
Poster présenté lors des rencontres doctorales ("Doctoriales") de l'Université de la Réunion (Mai 2014) Réunion, France.
Research Interests: Instrumentation Engineering, Sustainable Building Design, Building Information Modeling, Energy Efficiency Buildings, Building Energy Simulation, and 19 moreInstrumentation and Measurement Science, Building Integrated Solar Energy Technologies, Experimental Physics, Daylight Factor simulation methods, Instrumentation, Daylight Assessment, Green Building, Building Technology, Daylight, Daylighting, Architectural Design, Daylight modelling, Daylighting & Rights of Light, Daylighting, Daylight Simulation, Daylighting System, Visual Comfort and Daylighting, Daylight and Thermal Comfort Study, Daylighting Simulation, and Daylight Simulation. Photometry
Poster présenté au congrès CIFEM (mai 2014) à Moroni (Comores)
Research Interests: Sustainable Building Design, Building Information Modeling, Energy Efficiency Buildings, Building Energy Simulation, Building Integrated Solar Energy Technologies, and 12 moreDaylight Factor simulation methods, Daylight Assessment, Green Building, Building Technology, Daylight, Daylighting, Architectural Design, Daylight modelling, Daylighting, Daylight Simulation, Visual Comfort and Daylighting, Daylight and Thermal Comfort Study, and Daylighting Simulation
Poster for ISES Congress (Nov. 2013) at Cancun (Mexico)