References of "Reiter, Sigrid"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailBioclimatism in Architecture : an evolutionary perspective
Nguyen, Anh Tuan; Reiter, Sigrid ULg

in International Journal of Design and Nature and Ecodynamics (in press)

Fundamentals of vernacular architecture have been used in bioclimatic architecture which has gradually become the inspiration of various movements in contemporary architecture. The study points out that ... [more ▼]

Fundamentals of vernacular architecture have been used in bioclimatic architecture which has gradually become the inspiration of various movements in contemporary architecture. The study points out that the development of bioclimatism in architecture has followed the pattern of a natural evolutionary process in which “natural selection” is likely motivated by several factors, including resources and environment problems, and driven by different mechanisms including novel building design concepts and methods, new standards and codes, discoveries in building science and construction costs. This study is an effort aimed to clarify the evolution process of the bioclimatic approach in architecture over time and its influences on contemporary movements in architecture. The paper shows also that the evolutionary theory generated new scientific tools able to improve building design thanks to simulation-based optimization methods applied to building performances. Finally, this study investigates new motivations in the era of climate change whose effects are expected to introduce more challenges as well as more trends towards a sustainable built environment through the new concept of Eco-adaptive architecture. [less ▲]

Detailed reference viewed: 14 (1 ULg)
Peer Reviewed
See detailBioclimatism in Architecture : an evolutionary perspective from vernacular architecture to eco-adaptive architecture
Nguyen, Anh Tuan; Reiter, Sigrid ULg

Conference (2016, July)

The well-known Darwinian evolutionary theory (1859) introduced natural selection as the most important mechanism of evolutionary processes at every level from biological systems, including species ... [more ▼]

The well-known Darwinian evolutionary theory (1859) introduced natural selection as the most important mechanism of evolutionary processes at every level from biological systems, including species, individual organisms… to molecules such as DNA or proteins. In architecture we observe similar evolution processes which lead to the development of various architectural movements and concepts from common primitive living structures. The study points out that the development of bioclimatism in architecture has followed the pattern of a natural evolutionary process in which “natural selection” is likely motivated by several factors, including resources and environment problems, and driven by different mechanisms including novel building design concepts and methods, new standards and codes, discoveries in building science and construction costs. Finally, this study investigates new motivations in the era of climate change whose effects are expected to introduce more challenges as well as more trends towards a sustainable built environment through the new concept of Eco-adaptive architecture. [less ▲]

Detailed reference viewed: 16 (2 ULg)
See detailModélisations architecturales et urbaines: pour des environnements bâtis durables
Reiter, Sigrid ULg

Scientific conference (2016, May)

Detailed reference viewed: 10 (0 ULg)
See detailApplications of CFD to wind engineering
Reiter, Sigrid ULg

Scientific conference (2016, March)

Detailed reference viewed: 14 (4 ULg)
Full Text
Peer Reviewed
See detailIngénierie des ambiances urbaines: développement d'un dispositif pédagogique mixant approche numérique et créativité
Nguyen, Ngoc Luan ULg; Reiter, Sigrid ULg

Poster (2016)

Le présent poster décrit le dispositif pédagogique mis en œuvre pour accompagner les étudiants dans la conception et l’évaluation d’ambiances urbaines grâce à la combinaison d’un apprentissage par projet ... [more ▼]

Le présent poster décrit le dispositif pédagogique mis en œuvre pour accompagner les étudiants dans la conception et l’évaluation d’ambiances urbaines grâce à la combinaison d’un apprentissage par projet et de la modélisation numérique des projets développés à l’échelle du quartier. Cette activité de formation répond aux sept critères essentiels d’une situation-problème en apprentissage par projet. Ce poster résume l’expérience accumulée dans l’application de ce dispositif pédagogique innovant. [less ▲]

Detailed reference viewed: 18 (1 ULg)
Peer Reviewed
See detailMethodology to model the energy vulnerability of households in Europe based on the current mapping of fuel poverty and transport poverty and its likely evolution until 2040
Pierson, Charlotte; Reiter, Sigrid ULg

in Proceedings of the Urban Transition Global Summit 2016 (2016)

Fuel poverty refers to a situation in which an individual or household is not able to meet their basic energy needs. Fuel poverty is currently growing in the European Union. Research in this field is ... [more ▼]

Fuel poverty refers to a situation in which an individual or household is not able to meet their basic energy needs. Fuel poverty is currently growing in the European Union. Research in this field is often limited to the assessment of the current risk of fuel poverty based on energy consumptions due to housing. Urban sprawl generates a significant increase in energy consumption related to daily mobility, which generates energy poverty related to transportation needs. This article presents a methodology for modeling the current and future energy poverty of households in Europe on the basis of energy consumptions due to housing, to daily mobility and their combination. Indicators for fuel poverty and transport poverty will be based on Hills’ method, which is widely recognized internationally for fuel poverty assessment and which takes into account two thresholds: energy expenses of households and their available residual income. This article will outline the spatial modeling process of energy costs due to dwellings and mobility thanks to the coupling of a GIS tool, cadastral datasets, existing methods for the assessment of buildings and transport energy consumptions and updated databases (EPB certificates, detailed mobility surveys, data from smart meters, mobile phones and GPS). Different scenarios will be selected to predict the evolution of fuel and transport poverty until 2040 on the basis of national and European prospective studies or, alternatively, based on the historical evaluation of some key parameters and their extrapolation. The evolution of built-up areas will be model thanks to the multinomial logistic regression model (MLR) that enables to visualize the consequence of different urban densities expansion. The different parameters that will influence the evolution of fuel and transport poverty until 2040 will be highlighted (climate change, urban expansion, fuel prices, energy performance of buildings and vehicles, etc.). [less ▲]

Detailed reference viewed: 36 (3 ULg)
Full Text
Peer Reviewed
See detailL'approche typologique processuelle comme modèle systémique de lecture des représentations graphiques dans les concours d'architecture
Boutemadja, Abdelkader ULg; Reiter, Sigrid ULg

in ESS 2015 (2015, October 16)

Dans le cadre de cet article nous allons expliquer la démarche entreprise pour essayer de mieux comprendre les productions actuelles d’image d’architecture. Pour ce faire, nous avons effectué des ... [more ▼]

Dans le cadre de cet article nous allons expliquer la démarche entreprise pour essayer de mieux comprendre les productions actuelles d’image d’architecture. Pour ce faire, nous avons effectué des recherches sur deux niveaux complémentaire ; la systémique et la sémiotique. Si la deuxième nous permet d’utiliser des outils concrets d’analyse de l’image la première nous offre les bases théoriques pour expliquer l’objet d’étude qu’est l’image. Nous nous attarderons dans cet article sur les emprunts fait à la typologie processuelle comme approche systémique étudiants le territoire et le bâti et plus particulièrement sur la notion de moment de crise point de départ de la compréhension d’un phénomène aussi complexe que la représentation graphique du projet. [less ▲]

Detailed reference viewed: 60 (11 ULg)
Full Text
Peer Reviewed
See detailL’image dans le concours d’architecture : Méthodologie de lecture de la représentation graphique du projet
Boutemadja, Abdelkader ULg; Reiter, Sigrid ULg

in AISV 2015 (2015, September 08)

Nous assistons depuis quelques décennies au développement de nouveaux modes de production des représentations graphiques en architecture. Ces développements ont des raisons multiples mais la principale ... [more ▼]

Nous assistons depuis quelques décennies au développement de nouveaux modes de production des représentations graphiques en architecture. Ces développements ont des raisons multiples mais la principale semble être l’essor qu’a connu l’usage de l’outil informatique dans nos sociétés de manière générale mais aussi dans les domaines de liés à l’édification dont l’architecture et l’urbanisme. Le recours aux images 3D assistées par ordinateur est aussi apparu très tôt surtout dans le cadre des concours d’architecture. Pour produire les images les plus séduisantes, les logiciels d’architecture et d’urbanisme (DAO, CAO, BIM, SIG, …) sont devenus de plus en plus performants et intuitifs. Dans le cadre plus particulier des concours d’architecture, cette utilisation de l’outil informatique et des nouveaux modes de représentation graphique se trouve exacerbée. Chaque concours devient d’occasion, pour les architectes qui y participent, de recherche et d’innovation – non seulement architecturale – mais aussi dans la manière de représenter et de communiquer cette architecture. Qu’elles sont les nouvelles stratégies de communication portées par les représentations graphiques du projet que l’architecte cherche à mettre en place dans un concours d’architecture ? Existe-t-il une logique commune, liée aux nouveaux modes de production, à ces stratégies de communication du projet ? Ces nouvelles typologies de représentation graphique ont elles une influence sur les typologies architecturales produites, plus particulièrement dans les concours d’architecture ? Ce sont ici les questions principales que nous nous posons et auxquelles nous cherchons à répondre au travers de cet article. [less ▲]

Detailed reference viewed: 61 (12 ULg)
Full Text
Peer Reviewed
See detailL'image dans le concours EUROPAN : étude de l'évolution de la représentation graphique du projet
Boutemadja, Abdelkader ULg; Reiter, Sigrid ULg

Conference (2015, June 02)

EUROPAN se distingue par sa volonté de mettre en avant de jeunes architectes mais aussi « d’approfondir les connaissances et les réflexions dans le domaine de l’habitat et de l’urbanisme ». Le fait que le ... [more ▼]

EUROPAN se distingue par sa volonté de mettre en avant de jeunes architectes mais aussi « d’approfondir les connaissances et les réflexions dans le domaine de l’habitat et de l’urbanisme ». Le fait que le projet lauréat a pour visée d’être traduit en une commande et une réalisation concrète permet d’attirer des projets réalistes dont la finalité est de s’inscrire dans un processus décisionnel complexe et complet. En outre, signalons que les auteurs de projets y présentent leur idées presqu’exclusivement au travers de la représentation graphique dont le support est le même pour tous (3 planches A1) et que ce concours a fait l’objet d’un archivage important. Ainsi, ce champ d’expérimentation nous permet d’analyser l’évolution durant les dernières décennies des modes de représentation graphique du projet dans le cadre du concours d’idées architecturales et urbaines. L’analyse des documents graphiques retenus dans ce champ d’expérimentation nous a permis de relever les différentes typologies graphiques utilisées dans leur composition. Il s’agit de : chorèmes, de schémas, de plans/coupes/élévations, d’images 3D et de textes. Ces différentes typologies se déclinent en sous-entités suivant les relations que les unes établissent avec les autres (par exemple : des schémas en 3D ou des images 3D intégrant des coupes …). Grâce à une analyse comparative du nombre de types utilisés et des surfaces dédiées à chacun d’eux au cours des différentes sessions, nous avons constaté un usage assez constant des chorèmes et des schémas mais une évolution de l’utilisation des images 3D par rapport aux plans/coupes/élévations donnant de plus en plus d’importance aux images 3D au détriment de documents graphiques plus conventionnels avec même parfois des transferts de charges symboliques d’un type à l’autre. Cette recherche montre ainsi que l’image 3D est désormais intégrée comme l’un des moyens les plus importants de communication et de partage d’informations concernant le projet urbain. Enfin, cette recherche révèle l’intérêt pour notre discipline de développer une méthode spécifique de lecture de la représentation graphique du projet architectural et urbain, de manière à étudier l’image non seulement comme support de représentation mais aussi en tant que système de communication. La méthode de lecture des images proposée est fondée sur l’utilisation et l’adaptation de méthodes et techniques d’interprétations de projets et d’images développées initialement dans les domaines de la systémique et de la sémiotique ; elle pourra être utilisée dans des recherches ultérieures pour continuer d’améliorer notre compréhension de l’évolution des représentations graphiques du projet. [less ▲]

Detailed reference viewed: 85 (24 ULg)
See detailSOLEN (SOlutions for Low Energy Neighbourhoods)
Marique, Anne-Françoise ULg; Cuvellier, Simon; De Herde, André et al

Software (2015)

Trois outils d’évaluation énergétique sont proposés. Ils sont articulés autour d’une structure commune en quatre parties : (1) le formulaire et les résultats de l’évaluation énergétique des déplacements ... [more ▼]

Trois outils d’évaluation énergétique sont proposés. Ils sont articulés autour d’une structure commune en quatre parties : (1) le formulaire et les résultats de l’évaluation énergétique des déplacements de l’utilisateur ou de l'accessibilité du quartier; (2) le formulaire et les résultats de l’évaluation énergétique des bâtiments et du potentiel en énergie renouvelable; (3) la comparaison des résultats précédents en ce qui concernent les consommations énergétiques et les émissions de CO2 ainsi que le coût énergétique associé et (4) la proposition de pistes d’améliorations concrètes et la quantification des gains énergétiques potentiels relatifs à plusieurs scénarios. [less ▲]

Detailed reference viewed: 16 (2 ULg)
Full Text
Peer Reviewed
See detailA performance comparison of sensitivity analysis methods for building energy models
Nguyen, Anh Tuan; Reiter, Sigrid ULg

in Building Simulation: An International Journal (2015), 8(6), 651-664

The choice of sensitivity analysis methods for a model often relies on the behavior of model outputs. However, many building energy models are “black-box” functions whose behavior of simulated results is ... [more ▼]

The choice of sensitivity analysis methods for a model often relies on the behavior of model outputs. However, many building energy models are “black-box” functions whose behavior of simulated results is usually unknown or uncertain. This situation raises a question of how to correctly choose a sensitivity analysis method and its settings for building simulation. A performance comparison of nine sensitivity analysis methods has been carried out by means of computational experiments and building energy simulation. A comprehensive test procedure using three benchmark functions and two real-world building energy models was proposed. The degree of complexity was gradually increased by carefully-chosen test problems. Performance of these methods was compared through the ranking of variables’ importance, variables’ sensitivity indices, interaction among variables, and computational cost for each method. Test results show the consistency between the Fourier Amplitude Sensitivity Test (FAST) and the Sobol method. Some evidences found from the tests indicate that performance of other methods was unstable, especially with the non-monotonic test problems. [less ▲]

Detailed reference viewed: 47 (3 ULg)
Full Text
Peer Reviewed
See detailUne mobilité résidentielle durable est-elle possible? Pratique de déplacements, modèles urbains et choix de localisation de populations résidentes en Wallonie.
Reiter, Sigrid ULg; Ghiezen, Sébastien; Pierson, Charlotte

in Actes du Colloque International APERAU 2014: "Villes à vivre: le quotidien métropolitain entre ancrage et mobilité". (2015)

Detailed reference viewed: 36 (12 ULg)
Full Text
Peer Reviewed
See detailRetrofitting the suburbs: Insulation, density, urban form and location
Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in Environmental management and sustainable development (2014), 3(2), 138-153

The effects of urban sprawl have been well documented, particularly regarding energy consumption. Suburban neighbourhoods are known to be energy inefficient and urban sprawl is considered as a major issue ... [more ▼]

The effects of urban sprawl have been well documented, particularly regarding energy consumption. Suburban neighbourhoods are known to be energy inefficient and urban sprawl is considered as a major issue for sustainable development. To improve the energy efficiency of existing suburban urban fabrics is a major challenge that must be addressed to favour a sustainability transition of our built environment. In this context, this paper aims at investigating several scenarios that could be developed to improve the sustainability of existing suburban neighbourhoods: three main types of scenarios (building insulation, density, and urban form) and twelve sub-scenarios, which are focused on the possible evolution of the existing suburban building stocks, are proposed. Quantitative methods developed in previous research are used to assess and compare building and transportation energy consumption of a representative suburban case study. This application aims at investigating two main research questions: (1) "how to intervene in suburban neighbourhoods?" and (2) «where to intervene?" The main results of this application, which are focused on energy efficiency, are then studied in a larger framework to highlight their opportunities and constraints. The main findings of the paper are that, beyond the traditional polarisation of the debates on the energy efficiency of our built environment between the “compact” and the “sprawled” city, a new pragmatic paradigm, which is focused on the smooth densification of existing suburban neighbourhoods, can make them evolve towards greater sustainability. [less ▲]

Detailed reference viewed: 94 (20 ULg)
Full Text
Peer Reviewed
See detailThe efficiency of different simulation-based design methods in improving building performance
Nguyen, Anh Tuan; Reiter, Sigrid ULg

in Brebbia,, C.A.,; Pulselli, R. (Eds.) WIT Transactions on Ecology on The Built Environment, vol. 142 (2014, September)

This paper presents a pioneering effort to define the efficiency of the most common simulation-based design methods, namely the parametric simulation method (PSM) and the simulation-based optimization ... [more ▼]

This paper presents a pioneering effort to define the efficiency of the most common simulation-based design methods, namely the parametric simulation method (PSM) and the simulation-based optimization method (SOM), in improving two building performance indicators: thermal comfort and energy consumption. Three case-study houses were selected and their indoor conditions were continuously monitored during one summer month in 2012. Computer EnergyPlus models of these houses were established and then carefully calibrated by the monitoring data to improve the reliability of the numerical methods. Thermal performances of these houses during a year were simulated, then improved by the PSM and finally optimized by the SOM. By comparing the results of these two simulation-based design methods, this research found that both the PSM and SOM were very effective in improving these building performance indicators. This study found that the SOM is almost two times more efficient than the PSM in improving thermal comfort in naturally ventilated (NV) houses and life cycle cost in air-conditioned (AC) houses. In average, the discomfort period in NV houses could be reduced by 44.9% by the PSM while as high as 86.1% by the SOM, compared with the reference cases. The life cycle cost of AC houses had smaller reductions with 6.2% and 14.6% cut-off by the PSM and SOM, respectively. The results of this work give a strong and explicit insight of the actual efficiency of each design method. This work also shows great advantages of applications of advanced numerical approaches in the design of high performance buildings. [less ▲]

Detailed reference viewed: 115 (12 ULg)
See detailLa recherche et l'outil SOLEN : diffusion des résultats et outils développés dans le cadre de la recherche SOLEN
Reiter, Sigrid ULg

Conference given outside the academic context (2014)

Detailed reference viewed: 8 (1 ULg)
Peer Reviewed
See detailChoix de localisation des ménages, comportements de mobilité résidentielle et stratégies urbanistiques les plus appréciées par la population
Reiter, Sigrid ULg; Ghiezen, Sébastien; Marique, Anne-Françoise

Conference (2014, May)

Detailed reference viewed: 25 (4 ULg)
Full Text
Peer Reviewed
See detailCoupling building energy simulation and computational fluid dynamics: Application to a two-storey house in a temperate climate
Barbason, Mathieu ULg; Reiter, Sigrid ULg

in Building & Environment (2014), 75

This article reports the coupling of a building energy simulation (BES) made with TRNSYS with a computational fluid dynamics (CFD) simulation made with ANSYS FLUENT and its application to a typical ... [more ▼]

This article reports the coupling of a building energy simulation (BES) made with TRNSYS with a computational fluid dynamics (CFD) simulation made with ANSYS FLUENT and its application to a typical Belgian two-storey house. The coupling scheme developed in this study aims to improve the overheating prediction for buildings. This phenomenon is becoming increasingly frequent in Northern Europe due to increased insulation and a lack of sun protection and natural cooling strategies. Complementary contributions of the two numerical approaches are underlined and used to obtain accurate results in an acceptable computing time, even in a thermally stratified room. The space and time coupling is discussed to obtain an optimised tool in which BES is in charge of the primary portion of the effort, while CFD intervenes punctually on one room of interest. The numerical results are compared both qualitatively and quantitatively to the experimental results, and the improved accuracy of the coupled tool compared with a standalone BES is underlined. [less ▲]

Detailed reference viewed: 57 (21 ULg)
Full Text
Peer Reviewed
See detailA climate analysis tool for passive heating and cooling strategies in hot humid climate based on Typical Meteorological Year data sets
Nguyen, Anh Tuan ULg; Reiter, Sigrid ULg

in Energy & Buildings (2014), 68(Part C), 756-763

Through a newly developed climate analysis tool, this paper examines the potential of improving thermal comfort under the climates of Vietnam thanks to passive strategies. A Building climatic chart for ... [more ▼]

Through a newly developed climate analysis tool, this paper examines the potential of improving thermal comfort under the climates of Vietnam thanks to passive strategies. A Building climatic chart for Vietnamese was proposed based on Fanger’s theory [1] and the comfort zone of this chart was then extended by calculating the effects of passive heating and cooling strategies. Typical Meteorological Year weather data are used for extracting and graphically printing of hourly environmental parameters on the psychrometric chart and for climate analysis, subsequently. The limitation and the scope of this method are also specified. The climates of three climatic regions in Vietnam have been used as case studies using all year, seasonal and monthly analysis. The results show that natural ventilation is an effective cooling solution as thermal comfort improvement varies with the climatic zones, increasing from 24.8% in Hanoi, 22.1% in Danang to 32.0% in Hochiminh city. Meanwhile, passive solar heating is only effective under the climate of Hanoi. Direct evaporative cooling also shows great cooling potential for comfort improvement but probable elevated humidity is not expected. Total possible comfort in a year of each location indicates that further climate modification methods are inevitable to achieve comfort during extreme weather conditions, especially in Hanoi. [less ▲]

Detailed reference viewed: 194 (29 ULg)