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See detailUrban sprawl, commuting and travel energy consumption
Marique, Anne-Françoise ULg; Dujardin, Sébastien; Teller, Jacques ULg et al

in Proceedings of the Institution of Civil Engineers. Energy (2013), 166(1), 29-41

Commuting to and from dense urban centres is often believed to be more energy efficient than commuting from more suburban areas. However, quantitative evidence is lacking. In this context, this paper ... [more ▼]

Commuting to and from dense urban centres is often believed to be more energy efficient than commuting from more suburban areas. However, quantitative evidence is lacking. In this context, this paper investigates the interactions between the spatial structure of the territory and transport energy consumption for commuting. Based on empirical surveys carried out every 10 years in Belgium, a quantitative method was developed and applied to assess energy efficiency of home-to-work and home-to-school travels. Our main findings highlight that urban structure acts upon travel energy consumption for commuting and that major cities present low energy consumption. However, a local-scale approach is useful for refining these observations, and this approach highlights the existence of secondary suburban and rural cores that also are characterized by low transport energy consumption. In this respect, the distance from home to a destination is paramount, whereas the mode of transport used has a lower impact. The method is parameterised and reproducible in other territories. [less ▲]

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See detailLa transition des territoires périurbains vers un modèle plus durable : perspectives pour le renouvellement périurbain.
Marique, Anne-Françoise ULg; Reiter, Sigrid ULg

in Van Ypersele, Jean-Pascal; Hudon, Marek (Eds.) 1er Congrès interdisciplinaire du Développement Durable : Quelle transition pour nos sociétés ? Thème 3 : Logement et Aménagement du territoire. Recueil. (2013, February)

L’article aborde la question du recyclage des quartiers périurbains existants sous l'angle énergétique. Deux leviers d’actions sont mobilisés à cet effet : la forme urbaine, qui est étudiée en ... [more ▼]

L’article aborde la question du recyclage des quartiers périurbains existants sous l'angle énergétique. Deux leviers d’actions sont mobilisés à cet effet : la forme urbaine, qui est étudiée en complémentarité de l’échelle du bâtiment individuel, et la mobilité, car l’étalement urbain est entretenu et favorisé, en grande partie par la dépendance à la voiture individuelle. Deux indicateurs principaux (les besoins de chauffage de différents types de formes périurbaines et un indice de performance des déplacements) sont développés et discutés pour mettre en évidence les scénarios de renouvellement les plus adaptés et répondre à deux questions : « comment intervenir dans les quartiers périurbains existants ? » et « où intervenir ? ». Des pistes concrètes visant à l’opérationnalisation d’un « renouvellement périurbain » plus durable sont ensuite proposées. [less ▲]

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See detailEnergy Consumption : Impacts of Human Activity, Current and Future Challenges, Environmental and Socio-economic Effects
Reiter, Sigrid ULg

Book published by Nova Science Publishers (2013)

Energy is central to sustainable development : it has huge environmental, social, and economic impacts amongst which is its influence on climate change, poverty reduction efforts, industrial and ... [more ▼]

Energy is central to sustainable development : it has huge environmental, social, and economic impacts amongst which is its influence on climate change, poverty reduction efforts, industrial and agricultural productivity and environmental and human health. Developping strategies towards a sustainable energy transition is one of the most important world’s challenges of the twenty-first century. The choices that we will make in the coming years about energy will determine what world future generations will inherit. The book Energy Consumption : Impacts of Human Activity, Current and Future Challenges, Environmental and Socio-economic Effects, gives an overview of the key issues, strategies, operational guidelines and policy implications of current research on transition to more sustainable energy consumption. It investigates the important issue of the relations between human activities, energy systems and energy use. It addresses the environmental, social and economic impacts of energy consumption and their interrelationships. Written by academic and research experts in the field of energy, this book develops strategies for an energy sustainable development of the main energy-intensive sectors: energy production, transportation, buildings, agriculture and domestic appliances. It shows the best opportunities and solutions for energy demand reduction, energy efficiency improvement, increase in the share of renewable energy sources, technological progress and behavioural change in the field of energy. Its aim is to guide the reader to more efficient policies and to actions that really will improve the future. The book addresses also the different issues faced by developing and developed countries as well as their relative respective solutions. It sets out various alternative pathways that are open to our societies. Methods of energy consumption assessment and modeling approaches are also discussed. All those who are interested in the energy challenges will find in this book practical knowledge and operational solutions, providing a solid foundation to help make well-informed choices, as individuals and as societies. [less ▲]

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See detailEnergy Consumption: Preface
Reiter, Sigrid ULg

in Reiter, Sigrid (Ed.) Energy Consumption : Impacts of Human Activity, Current and Future Challenges, Environmental and Socio-economic Effects (2013)

Energy is central to sustainable development : it has huge environmental, social, and economic impacts amongst which is its influence on climate change, poverty reduction efforts, industrial and ... [more ▼]

Energy is central to sustainable development : it has huge environmental, social, and economic impacts amongst which is its influence on climate change, poverty reduction efforts, industrial and agricultural productivity and environmental and human health. Developping strategies towards a sustainable energy transition is one of the most important world’s challenges of the twenty-first century. The choices that we will make in the coming years about energy will determine what world future generations will inherit. The book Energy Consumption : Impacts of Human Activity, Current and Future Challenges, Environmental and Socio-economic Effects, gives an overview of the key issues, strategies, operational guidelines and policy implications of current research on transition to more sustainable energy consumption. It investigates the important issue of the relations between human activities, energy systems and energy use. It addresses the environmental, social and economic impacts of energy consumption and their interrelationships. Written by academic and research experts in the field of energy, this book develops strategies for an energy sustainable development of the main energy-intensive sectors: energy production, transportation, buildings, agriculture and domestic appliances. It shows the best opportunities and solutions for energy demand reduction, energy efficiency improvement, increase in the share of renewable energy sources, technological progress and behavioural change in the field of energy. Its aim is to guide the reader to more efficient policies and to actions that really will improve the future. The book addresses also the different issues faced by developing and developed countries as well as their relative respective solutions. It sets out various alternative pathways that are open to our societies. Methods of energy consumption assessment and modeling approaches are also discussed. All those who are interested in the energy challenges will find in this book practical knowledge and operational solutions, providing a solid foundation to help make well-informed choices, as individuals and as societies. [less ▲]

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See detailToward a Sustainable Energy transition in the Built Environment
Reiter, Sigrid ULg; Marique, Anne-Françoise ULg

in Reiter, Sigrid (Ed.) Energy Consumption : Impacts of Human Activity, Current and Future Challenges, Environmental and Socio-economic Effects (2013)

The world is undergoing the largest wave of urban growth in history. In the actual context of growing interests in environmental issues, uban areas are known to present high potentialities in terms of ... [more ▼]

The world is undergoing the largest wave of urban growth in history. In the actual context of growing interests in environmental issues, uban areas are known to present high potentialities in terms of energy reduction. However, existing models and regulation often adopt the perspective of the individual building as an autonomous entity, and neglect the importance of phenomena linked to larger scales, while decisions made at the neighbourhood and the city scales have important consequences on the performance of individual buildings, on the transport habits of the inhabitants and on the potential mutualisation of renewable energy production. This chapter examines strategies toward a sustainable energy transition in the built environment. The chapter summarizes and put into perspectives findings from numerous studies that have investigated parameters influencing energy consumption of the built environment including location, urban form, density, mix use, mobility patterns, buildings insulation, energy mix and inhabitants’ behaviours. This chapter contributes to the important area of understanding how to facilitate a sustainable transition in the built environment through urban and suburban renewal. [less ▲]

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See detailImpacts of occupant behaviours on residential heating consumption for detached houses in a temperate climate of the northern part of Europe
de Meester, Tatiana; Marique, Anne-Françoise ULg; De Herde, André et al

in Energy & Buildings (2013), 57

The occupants' behaviour has a great influence on the energy demand, management and consumption of a building. This paper investigates the influence of three parameters related to human behaviour through ... [more ▼]

The occupants' behaviour has a great influence on the energy demand, management and consumption of a building. This paper investigates the influence of three parameters related to human behaviour through their modes of occupations (based on family size, management of the heating system and management of the heated area) on the housing heating loads of a standard dwelling in Belgium. Seven levels of insulation were tested: no insulation, two intermediate levels corresponding to 3 and 6 cm of insulation, the current standard for new buildings in Belgium, the low energy standard, the very low energy standard and the passive house standard. Multi-zone simulations were performed with a dynamic thermal simulation software. The impact of occupants' lifestyle and the interactions between occupation modes and insulation levels are highlighted. These results prove that the more the building is insulated, the more the lifestyle proportionally influences the heating loads. One important strategy for reducing heating consumption during the whole life cycle of the building is adapting the size of the house and its occupation modes to the evolution of family size. However, insulation is paramount, and increasing the insulation of the house provides generally better results than merely adapting the occupation mode. [less ▲]

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See detailImpacts of occupant behaviours on residential heating consumption for detached houses in a temperate climate of the northern part of Europe
de Meester, Tatiana; Marique, Anne-Françoise ULg; De Herde, André et al

in Energy & Buildings (2013), 57

The occupants' behaviour has a great influence on the energy demand, management and consumption of a building. This paper investigates the influence of three parameters related to human behaviour through ... [more ▼]

The occupants' behaviour has a great influence on the energy demand, management and consumption of a building. This paper investigates the influence of three parameters related to human behaviour through their modes of occupations (based on family size, management of the heating system and management of the heated area) on the housing heating loads of a standard dwelling in Belgium. Seven levels of insulation were tested: no insulation, two intermediate levels corresponding to 3 and 6 cm of insulation, the current standard for new buildings in Belgium, the low energy standard, the very low energy standard and the passive house standard. Multi-zone simulations were performed with a dynamic thermal simulation software. The impact of occupants' lifestyle and the interactions between occupation modes and insulation levels are highlighted. These results prove that the more the building is insulated, the more the lifestyle proportionally influences the heating loads. One important strategy for reducing heating consumption during the whole life cycle of the building is adapting the size of the house and its occupation modes to the evolution of family size. However, insulation is paramount, and increasing the insulation of the house provides generally better results than merely adapting the occupation mode. [less ▲]

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See detailSchool commuting: the relationship between energy consumption and urban form
Marique, Anne-Françoise ULg; Dujardin, Sébastien; Teller, Jacques ULg et al

in Journal of Transport Geography (2013), 26

A large amount of research in the past has focused on the relationships between the energy consumption for home-to-work travels and land-use patterns. However, little is known about children's mobility ... [more ▼]

A large amount of research in the past has focused on the relationships between the energy consumption for home-to-work travels and land-use patterns. However, little is known about children's mobility. This paper analyses the energy consumption, travel distances and modechoices for school commuting based on two decennial surveys in Belgium. The results highlight the following: (1) Mobility behaviours have evolved drastically over the past decades for school commuting, an evolution that cannot be entirely related to land-use variables. (2) The energy consumption for school commuting is strongly dependent upon the school level. (3) The links between land-use patterns and energy consumption for school commuting are different than those highlighted within the literature between urban forms and home-to-work commutes. The concentration of secondary schools and tertiary institutions in urban centres induces higher energy consumption rates, whereas the decentralisation of nursery and primary schools across the entire territory leads to very low local energy consumption and increased walking and cycling. These results provide a better understanding of school commuting within the European context and could guide future policies focused on transport energy consumption at the local scale. [less ▲]

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See detailEtat des lieux du patrimoine bâti wallon et enjeux de sa rénovation
Reiter, Sigrid ULg

Conference (2012, November 27)

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See detailOptimum design of low-cost housing in developing countries using nonsmooth simulation-based optimization
Nguyen, Anh Tuan ULg; Reiter, Sigrid ULg

in Proceedings of the 28th International PLEA Conference (2012, November 07)

An optimum design of Low-cost housing (LCH) offers low-income urban inhabitants great opportunities to obtain a shelter at affordable price and acceptable indoor thermal conditions. In the present study ... [more ▼]

An optimum design of Low-cost housing (LCH) offers low-income urban inhabitants great opportunities to obtain a shelter at affordable price and acceptable indoor thermal conditions. In the present study, the design and operation of a low cost dwelling were numerically optimized using simulation-based approach in which a dynamic building simulation program (EnergyPlus) was coupled with the optimization engine (GenOpt). Three multi-objective cost functions which include construction cost, indoor thermal comfort and 50-year operating cost were applied for naturally ventilated (NV) and air-conditioned (AC) buildings. Optimization problem which consists of 18 building parameters combined with 6 ventilation strategies was examined by two population-based optimization algorithms (Particle Swarm optimization and Hybrid algorithm) to find optimum combinations among these variables. The results show that the design requirements of NV and AC dwellings are not quite similar, and in a few categories, even contradictory. Optimum design corresponding to each cost function was outlined. Results of this paper also show great potential of optimization in comfort improvement, energy saving, life cycle cost, up to 40%. [less ▲]

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See detailAn online interactive tool for the energy assessment of residential buildings and transportation
Marique, Anne-Françoise ULg; de Meester, Tatiana; Reiter, Sigrid ULg

in Proceedings of PLEA 2012 (2012, November)

In the current context of increasing environmental awareness, energy efficiency is presented as a viable approach to the mitigation of climate change. In addition to public policies dealing with energy ... [more ▼]

In the current context of increasing environmental awareness, energy efficiency is presented as a viable approach to the mitigation of climate change. In addition to public policies dealing with energy efficiency, heightening public awareness on the impact of citizens’ lifestyles and behaviours is crucial and could quickly lead to significant reductions in the total energy consumption of a territory. This paper presents a new online interactive tool which enables citizens, local authorities and private developers (1) to assess energy consumption in the building and transportation sectors, at the individual and at the neighbourhood scales; (2) to compare them and (3) to find relevant and personalized hints to reduce their energy consumptions. Numerous methods and tools including a typological classification of buildings, thermal dynamic simulations, life-cycle assessments, statistical treatments of national censuses, etc. were used and combined to build the database used in the online interactive tool. This tool makes the main results of a scientific research accessible to a large non-specialized audience which is crucial in the scope of the sustainable development. Keywords: interactive tool, assessment methods, buildings, transportation, households, scientific popularization [less ▲]

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See detailChromatic mutations in suburban areas
Nguyen, Ngoc Luan ULg; Teller, Jacques ULg; Reiter, Sigrid ULg

in Lee, Tien-Rien; Shyu, James (Eds.) AIC 2012 Interim Meeting of the International Colour Association (AIC). In Color We Live: Color and Environment. Book of Abstracts (2012, September 22)

Detailed reference viewed: 38 (15 ULg)
See detailLa recherche dans les domaines des Smart Cities et de l'efficacité énergétique des bâtiments
Reiter, Sigrid ULg

Conference given outside the academic context (2012)

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See detailDes territoires au projet : le projet de recherches SAFE
Marique, Anne-Françoise ULg; de Meester, Tatiana; De Herde, André et al

in Cahiers Nouveaux (Les) (2012), 82

Présentation des principaux résultats du projet de recherches SAFE (Suburban Areas Favoring Energy efficiency) qui traitait de l'évaluation énergétique des quartiers périurbains wallons (bâtiment ... [more ▼]

Présentation des principaux résultats du projet de recherches SAFE (Suburban Areas Favoring Energy efficiency) qui traitait de l'évaluation énergétique des quartiers périurbains wallons (bâtiment + transport). [less ▲]

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See detailRéduire les consommations énergétiques des ménages : influence des bâtiments et du transport.
Reiter, Sigrid ULg

Conference given outside the academic context (2012)

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See detailPrésentation des résultats de la recherche SAFE
Reiter, Sigrid ULg; Marique, Anne-Françoise ULg; de Meester, Tatiana

Conference given outside the academic context (2012)

Présentation des résultats de la recherche SAFE et d'un outil interactif permettant à différentes catégories d'utilisateurs d'estimer les consommations d'énergie relatives à leur logement et à leur ... [more ▼]

Présentation des résultats de la recherche SAFE et d'un outil interactif permettant à différentes catégories d'utilisateurs d'estimer les consommations d'énergie relatives à leur logement et à leur déplacements, à les comparer et à trouver des pistes concrètes d'amélioration. [less ▲]

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See detailAn adaptive thermal comfort model for hot humid South-East Asia
Nguyen, Anh Tuan ULg; Singh, Manoj Kumar ULg; Reiter, Sigrid ULg

in Building & Environment (2012), 56

The present paper presents a full procedure to develop an adaptive comfort model for South-East Asia. Meta-analysis on large number of observations from field surveys which were conducted in this region ... [more ▼]

The present paper presents a full procedure to develop an adaptive comfort model for South-East Asia. Meta-analysis on large number of observations from field surveys which were conducted in this region was employed. Standardization and bias control of the database were fully reported. Statistical tests of significance and weighted regression method applied in the analyses strengthened the reliability of the findings. This paper found a great influence of ‘Griffiths constant’ on the establishment of adaptive comfort equation and proposed an appropriate value. The adaptive comfort model generated is applicable to naturally ventilated building under hot and humid conditions of South-East Asia. The mean neutral comfort temperature (operative temperature, effective temperature, standard effective temperature) in naturally ventilated and air-conditioned building was compared and the differences have been discussed. The similar neutral standard effective temperature in both naturally ventilated and air-conditioned building proposes a new idea to implement SET* into building simulation tools to assess thermal comfort without the attention of building classification. Through the analysis, the effectiveness of behavioral adaptive actions on occupant’s thermal perception has been argued. The extended PMV-PPD model for hot humid conditions was examined and its applicability was recommended. Other comfort related issues, the differences and similarities between various adaptive comfort models were also addressed. [less ▲]

Detailed reference viewed: 140 (20 ULg)