References of "Reiter, Sigrid"
     in
Bookmark and Share    
See detailLa performance énergétique des urbanisations
Reiter, Sigrid ULg

Conference given outside the academic context (2012)

Detailed reference viewed: 25 (5 ULg)
Full Text
Peer Reviewed
See detailA method for evaluating transport energy consumption in suburban areas
Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in Environmental Impact Assessment Review (2012), 33

Urban sprawl is a major issue for sustainable development. It represents a significant contribution to energy consumption of a territory especially due to transportation requirements. However, transport ... [more ▼]

Urban sprawl is a major issue for sustainable development. It represents a significant contribution to energy consumption of a territory especially due to transportation requirements. However, transport energy consumption is rarely taken into account when the sustainability of suburban structures is studied. In this context, the paper presents a method to estimate transport energy consumption in residential suburban areas. The study aimed, on this basis, at highlighting the most efficient strategies needed to promote awareness and to give practical hints on how to reduce transport energy consumption linked to urban sprawl in existing and future suburban neighborhoods. The method uses data collected by using empirical surveys and GIS. An application of this method is presented concerning the comparison of four suburban districts located in Belgium to demonstrate the advantages of the approach. The influence of several parameters, such as distance to work places and services, use of public transport and performance of the vehicles, are then discussed to allow a range of different development situations to be explored. The results of the case studies highlight that travelled distances, and thus a good mix between activities at the living area scale, are of primordial importance for the energy performance, whereas means of transport used is only of little impact. Improving the performance of the vehicles and favoring home-work give also significant energy savings. The method can be used when planning new areas or retrofitting existing ones, as well as promoting more sustainable life styles regarding transport habits. [less ▲]

Detailed reference viewed: 331 (58 ULg)
Full Text
See detailSuburban areas favoring energy efficiency (SAFE) : Rapport scientifique et technique final.
Marique, Anne-Françoise ULg; de Meester, Tatiana; De Herde, André et al

Report (2012)

Rapport de recherches final présentant les résultats du projet de recherches SAFE (2009-2012). Le projet de recherches SAFE portait sur l'évaluation énergétique des quartiers périurbains existants dans le ... [more ▼]

Rapport de recherches final présentant les résultats du projet de recherches SAFE (2009-2012). Le projet de recherches SAFE portait sur l'évaluation énergétique des quartiers périurbains existants dans le but d'en améliorer l'efficience énergétique par le développement de nouveaux modes de conception et de planification des tissus périurbains. L'objectif concret de ce projet de recherche est d'offrir un outil informatique interactif, accessible sur le web (www.safe-energie.be), qui permette d'évaluer l'efficience énergétique des lotissements wallons existants et de comparer différentes stratégies de renouvellement périurbain. Cet outil est destiné à l'ensemble des acteurs du processus de conception, réalisation et rénovation du milieu urbain. L'outil informatique développé estl'aboutissement d'une recherche de pointe basée sur la modélisation énergétique de quartiers périurbains à l'aide de simulations du microclimat urbain (logiciel de CFD, etc), de simulations dynamiques des consommations énergétiques des bâtiments pendant leur utilisation et de simulations énergétiques des fragments urbains sur l'ensemble de leur cycle de vie (intégrant l'évaluation énergétique des bâtiments, du transport et des réseaux d'énergie). [less ▲]

Detailed reference viewed: 122 (30 ULg)
See detailLa ville à l'heure des contraintes énergétiques
Reiter, Sigrid ULg

Conference (2012, January 26)

Detailed reference viewed: 9 (1 ULg)
See detailCFD application : Green Building Design
Reiter, Sigrid ULg

Scientific conference (2012, January 17)

Detailed reference viewed: 27 (0 ULg)
Peer Reviewed
See detailA validation and learning process for CFD simulations of buildings (Keynote speaker)
Reiter, Sigrid ULg

Conference (2012, January 15)

Detailed reference viewed: 16 (3 ULg)
Full Text
Peer Reviewed
See detailCombining Territorial Data With Thermal Simulations to Improve Energy Management of Suburban Areas
Marique, Anne-Françoise ULg; Petel, Maud; Hamdi, Asma et al

in Proceedings of GEOProcessing 2012 (2012, January)

Urban sprawl has been identified as a major issue for sustainable development. Energy consumption in suburban buildings, in particular, is a widespread issue because detached types of houses require ... [more ▼]

Urban sprawl has been identified as a major issue for sustainable development. Energy consumption in suburban buildings, in particular, is a widespread issue because detached types of houses require significantly more energy to be heated than more compact urban forms. Energy efficiency is often presented as a viable approach to the mitigation of climate change, but research and studies mainly contend with individual buildings and do not address this issue at larger territorial scales or for a whole building stock. In this respect, this paper first presents a morphological definition of urban sprawl. This definition uses territorial and cadastral data available for the Walloon region of Belgium. Using this definition, a suburban type classification adapted to thermal studies is drawn up. A representative block of each type is selected to model energy use and to determine the total energy consumption of the whole suburban building stock. An application is then presented concerning a comparison of potential energy savings associated with several renovation strategies. The results of this exercise are presented and highlight the benefits of combining Geographic Information Systems (GIS) tools, territorial data and thermal simulations for the efficient energy management of suburban areas at the scale of the whole building stock. [less ▲]

Detailed reference viewed: 41 (15 ULg)
Full Text
Peer Reviewed
See detailLife-cycle assessment of residential buildings in three different European locations, case study
Rossi, Barbara ULg; Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in Building & Environment (2012), 51

The paper presents the comparative results of the life-cycle assessment (LCA) of one residential building with two constructive systems in Brussels and one steel frame house located in three different ... [more ▼]

The paper presents the comparative results of the life-cycle assessment (LCA) of one residential building with two constructive systems in Brussels and one steel frame house located in three different European towns: Brussels (Belgium), Coimbra (Portugal) and Luleå (Sweden). In a recent study, a modular building was studied in Coimbra and Luleå. It was shown that in terms of CO2 emissions, the Use Stage was the most harmful stage during the building life-cycle for Coimbra climate. Contrarily, in Luleå, it was the Product Stage, despite energy consumption being higher than Coimbra, due to the way electricity and heat are generated. In the present study, two structural systems are first compared for the Belgian house: steel frame and traditional masonry. A different life-cycle scenario is taken into account for the steel frame house for the three different locations, in which the monthly temperatures, energy mix, heating and cooling systems are defined. The LCA is carried out using the basic tool described in the companion paper. It is worth recalling that the results obtained with the basic tool were verified against Pleiades+Comfie and Equer software, enabling to carry out a complete LCA, for Brussels. Our results confirm that for all the three climates, the Use Stage (Operational energy) is the most harmful period during the building life-cycle and that the energy mix of the country strongly influences the equivalent CO2 emissions related to the Use Stage (Operational carbon) and may entirely reverse the conclusions about the life-cycle carbon footprint of the building. [less ▲]

Detailed reference viewed: 145 (38 ULg)
Full Text
Peer Reviewed
See detailLife-cycle assessment of residential buildings in three different European locations, basic tool
Rossi, Barbara ULg; Marique, Anne-Françoise ULg; Glaumann, Mauritz et al

in Building & Environment (2012), 51

The paper deals with the development of a tool used for the life cycle assessment of residential buildings located in three different European towns: Brussels (Belgium), Coimbra (Portugal) and Luleå ... [more ▼]

The paper deals with the development of a tool used for the life cycle assessment of residential buildings located in three different European towns: Brussels (Belgium), Coimbra (Portugal) and Luleå (Sweden). The basic tool focuses on the structure and the materials of the buildings and permits the evaluation of the Embodied energy, Embodied carbon and yearly energy consumption. For that purpose, a different set of original data is taken into account for each location, in which the monthly temperatures, energy mix, heating and cooling systems are defined. The energy consumption, being for heating space or water, for cooling or for lighting is transformed into CO2 emissions to deduce the Operational carbon as well. The influence of the energy mix can therefore be assessed in the basic tool. As a matter of fact, the heating and cooling systems habitually used in the three countries are also of great importance. The District Heating system, is, for instance, incorporated in the basic tool. The presence of solar water heater or photovoltaic panels is also strongly influencing the operational carbon. After a short literature review on building LCA and the description of the basic tool, the software Pleiades+Comfie combined with Equer is used to achieve the complete LCA for one building using two different load bearing frames. The results of the calculations for Brussels climate are verified against these software results. The dependence of the results to parameters such as climate, energy mix and habits is then discussed in the companion paper. [less ▲]

Detailed reference viewed: 93 (36 ULg)
Full Text
Peer Reviewed
See detailToward low energy cities : A case study of the urban area of Liège
Reiter, Sigrid ULg; Marique, Anne-Françoise ULg

in Journal of Industrial Ecology (2012), 16(6), 829-838

Within the framework of sustainable development, it is important to take into account environmental aspects of urban areas related to their energy use. In this article, a methodology is proposed for ... [more ▼]

Within the framework of sustainable development, it is important to take into account environmental aspects of urban areas related to their energy use. In this article, a methodology is proposed for assessing residential energy uses for buildings and transport at the city scale. This method is based on the use of GIS tools combined with a statistical treatment of urban and transport criteria. The methodology allows to model buildings and transport energy use at the city scale, as well as to consider the possible evolution of the city energy consumption and to simulate the effects of some strategies of urban renewal. An application is given to study different energy management strategies for the urban area of Liège. Buildings and transport energy consumption are compared at the city scale and their possible evolution in the future is highlighted. Forecast scenarios on future energy policies for Liège’s building stock show that the European Directive on the Energy Performance of Buildings and even more selective energy policies applied only on new buildings are not sufficient to widely decrease buildings energy consumptions at the city scale. The renovation of the existing building stock has a much larger positive impact on city energy consumption reductions. The methodology developed in this article can be adapted and/or reproduced on many other urban regions in Belgium but also in Europe or even further. [less ▲]

Detailed reference viewed: 85 (38 ULg)
Full Text
Peer Reviewed
See detailA Method to Evaluate the Energy Consumption of Suburban Neighbourhoods
Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in HVAC&R Research (2012), 18(1-2), 88-99

Energy use in buildings, transportation systems and lighting networks represents a significant contribution to the overall energy consumption in urban and suburban areas. This paper presents a method to ... [more ▼]

Energy use in buildings, transportation systems and lighting networks represents a significant contribution to the overall energy consumption in urban and suburban areas. This paper presents a method to evaluate the energy consumption of suburban neighborhoods from these three points of view, aiming to highlight the most relevant variables linking urban form and neighborhoods energy consumptions. The method includes three parts: 1) a computational approach combining dynamic simulation tools and a database of building typologies to determine the energy consumed in heating; 2) an empirical approach to assess the energy consumed by transportation systems (four purposes of travel are taking into account: work, school, leisure and shopping); and 3) a simplified approach to calculate the energy consumed by public lighting. Results from the application of the method to three characteristic suburban neighborhoods in Belgium are presented along with a life cycle energy assessment of buildings. A sensitivity analysis was conducted to determine the effects of building and neighborhood characteristics and of building inhabitant behavior on calculated energy consumption. Results from the analysis show that building insulation, building distribution, heating system management and neighborhood location are critically important factors in the energy efficiency of suburban residential areas. [less ▲]

Detailed reference viewed: 100 (52 ULg)
See detailSAFE
Marique, Anne-Françoise ULg; De Meester, Tatiana; Winant, Julien ULg et al

Software (2012)

L’outil informatique développé est un outil interactif accessible gratuitement sur le web qui comprend trois outils de modélisation énergétique permettant d’évaluer les consommations énergétiques liées au ... [more ▼]

L’outil informatique développé est un outil interactif accessible gratuitement sur le web qui comprend trois outils de modélisation énergétique permettant d’évaluer les consommations énergétiques liées au chauffage d'une habitation ou d'un quartier résidentiel ainsi qu’aux déplacements de leurs habitants, à les comparer et à identifier, sur cette base, les actions les plus efficaces à mener pour réduire leur consommation énergétique globale. [less ▲]

Detailed reference viewed: 16 (2 ULg)
Full Text
Peer Reviewed
See detailAn investigation on thermal performance of a low cost apartment in hot humid climate of Danang
Nguyen, Anh Tuan ULg; Reiter, Sigrid ULg

in Energy and Buildings (2012), 47

Low cost apartment has recently become one of the essential state policies to deal with rapid urbanisation and population boom in Vietnam. Thermal performance of a low cost apartment in Danang was ... [more ▼]

Low cost apartment has recently become one of the essential state policies to deal with rapid urbanisation and population boom in Vietnam. Thermal performance of a low cost apartment in Danang was examined using building simulation approach. The simulated results created by COMFIE were first calibrated by comparing them with measured data. The statistical indicators CV(RMSE) and NMBE as well as linear regression analysis were applied to assess the calibration. The calibrated model was then used to perform whole year simulations in which various ventilation and design strategies were applied. Thermal comfort potentials of these strategies were graphically defined by Brager’s adaptive comfort model from which the efficiency of each strategy was quantitatively determined. In the present paper, details of the calibration approach, assessment of simulated results and comparison of the findings were discussed. Results of these analyses revealed many notable findings which are in good agreement with those obtained from other publications. The limitation and recommendations for further study are also outlined. [less ▲]

Detailed reference viewed: 77 (13 ULg)
Full Text
See detailLe projet de recherches SAFE
Marique, Anne-Françoise ULg; De Meester, Tatiana; De Herde, André et al

Poster (2011, December 08)

Detailed reference viewed: 25 (8 ULg)
Full Text
Peer Reviewed
See detailA validation process for CFD use in building physics – study of contaminant dispersion.
Barbason, Mathieu ULg; Reiter, Sigrid ULg

in Proceedings of the 5th international conference on advanced computational methods in engineering (2011, November)

Growing interests in environmental concerns oblige building engineers to develop new approaches and to get used to new skills. Among them, Computational Fluid Dynamics (CFD) holds more and more importance ... [more ▼]

Growing interests in environmental concerns oblige building engineers to develop new approaches and to get used to new skills. Among them, Computational Fluid Dynamics (CFD) holds more and more importance. This technique can help to improve the comfort of the occupants but also to predict very early building energy performance. Moreover, it is possible to study the quality of the air. This last point will greatly help building engineers to improve sanitary conditions in various cases such as hospitals, clean rooms or even in classical buildings. However, this approach is still new and need to be validated. Indeed, CFD is still new in the frame of building physics. This paper aims to prove the ability of CFD to predict accurately contaminant dispersion and to demonstrate the breakthroughs that CFD can bring in the near future. [less ▲]

Detailed reference viewed: 43 (8 ULg)
Full Text
Peer Reviewed
See detailCoupling approach in building physics.
Barbason, Mathieu ULg; Reiter, Sigrid ULg

Conference (2011, November)

CFD and Multizone Simulations can be coupled to improve their performance. This presentation tackles the possibilities of this technique and its difficulties.

Detailed reference viewed: 26 (8 ULg)
Full Text
Peer Reviewed
See detailImproving energy efficiency of existing suburban areas through district energy planning
Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in Proceedings of ISHVAC 2011 (2011, November)

Urban sprawl represents a significant contribution to the overall energy consumption of a territory for energy needs in buildings and for transport. It is a huge concern in Belgium where public ... [more ▼]

Urban sprawl represents a significant contribution to the overall energy consumption of a territory for energy needs in buildings and for transport. It is a huge concern in Belgium where public authorities face the following question: “what to do with existing low-density districts that require a lot of resources?” while households still continue to favour this kind of dwellings. In this context, the paper draws up a typological classification of reference Walloon suburban blocks. Then, energy savings relating to several types of renewal strategy are evaluated. These strategies deal with the measures to reduce heat demand in buildings, to increase the built density and to reduce energy consumption in the transport sector. Results from this analysis show that a strong potential exists to improve energy efficiency in existing suburban districts. Building insulation and travel distances are critically important factors. Solar gains on the roofs are huge even if the built density is increased. [less ▲]

Detailed reference viewed: 67 (11 ULg)
Peer Reviewed
See detailLife-cycle carbon footprint of a residential steel framed building in different climates
Rossi, Barbara ULg; Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in World Sustainable Building Conference: SB11, Helsinki 18-21 October 2011 (2011, October 19)

Detailed reference viewed: 30 (7 ULg)
Full Text
Peer Reviewed
See detailA method to compare computational fluid dynamics (CFD) and multizonal dynamics simulations in buildings physics
Deltour, Jade; Van Moeseke, Geoffrey; Barbason, Mathieu ULg et al

in Proceedings of the International Conference CISBAT 2011 - Clean Tech for sustainable buildings - From Nano to Urban scale (2011, September 15)

This paper focuses on the development of a new evaluation method that combines data obtained by two different approaches: “multizonal dynamics” and “computational fluid dynamics (CFD)”. This research is a ... [more ▼]

This paper focuses on the development of a new evaluation method that combines data obtained by two different approaches: “multizonal dynamics” and “computational fluid dynamics (CFD)”. This research is a part of a project whose the main objective is to define guidelines for architects and buildings engineers. This guidelines aims at determining the adequate approach needed to evaluate the occupant thermal comfort and the building energy consumption for cooling and heating. [less ▲]

Detailed reference viewed: 66 (17 ULg)