References of "De Herde, André"
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See detailAn online interactive tool to assess energy consumption in residential buildings and for daily mobility
Marique, Anne-Françoise ULg; de Meester, Tatiana; De Herde, André et al

in Energy and Buildings (2014), 78C

Improving energy efficiency in the building and transportation sectors is a viable approach to mitigate the effects of climate change and has become an important policy target. As a result, in addition to ... [more ▼]

Improving energy efficiency in the building and transportation sectors is a viable approach to mitigate the effects of climate change and has become an important policy target. As a result, in addition to scientific research and public policies addressing energy efficiency, raising public awareness of the impact of the behaviour of citizens to energy efficiency is crucial and could quickly lead to significant reductions in the total energy consumption of a territory. In this context, this paper presents a new online interactive tool that enables not only citizens but also local authorities and private developers to (1) assess the sources of energy consumption related to housing and to daily mobility at both the individual and neighbourhood scales, (2) compare these sources and (3) determine relevant and personalised suggestions to reduce energy consumption. Numerous methods and tools, including a typological classification of buildings, thermal dynamic simulations, life-cycle assessments and statistical treatments of national censuses, were used to produce the two large databases used in this interactive tool. This report represents the primary results of a three-year long scientific research project dedicated to the study of energy efficiency in buildings and for daily mobility that is accessible to a large non-specialised audience. [less ▲]

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See detailEarly decision support for net zero energy buildings design using building performance simulation
Attia, Shady ULg; Gratia, Elisabeth; De Herde, Andre et al

in Clean Technology for Smart Cities and Buildings (2013, September)

This paper aims to investigate the use of building performance simulation tools as a method of informing the design decision of NZEBs. The aim of this study is to evaluate the effect of a simulation-based ... [more ▼]

This paper aims to investigate the use of building performance simulation tools as a method of informing the design decision of NZEBs. The aim of this study is to evaluate the effect of a simulation-based decision aid, ZEBO, on informed decision-making using sensitivity analysis. The objective is to assess the effect of ZEBO and other BPS tools on three specific outcomes: (i) knowledge and satisfaction when using simulation for NZEB design; (ii) users’ decision-making attitudes and patterns, and (iii) performance robustness based on an energy analysis. The paper utilizes three design case studies comprising a framework to test the use of BPS tools. Two types of data were collected, mainly preference and performance data. The preference data were used to collect information from participants using self-reported metrics. The performance data were used to collect information on the energy performance of the final design. The energy evaluations were compared with the results of a quantitative assessment of the overall design performance. Finally the results were compared and presented. The paper provides results that shed light on the effectiveness of sensitivity analysis as an approach for informing the design decisions of NZEBs. [less ▲]

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See detailA Tool for Design Decision Making Zero Energy Residential Buildings in Hot Humid Climate
Attia, Shady ULg; Gratia, Elisabeth; De Herde, Andre et al

in Proceedings of the 13th Conference of International Building Performance Simulation Association (2013, August)

Informed decision-making is the basis for the design of Net Zero Energy Buildings (NZEBs). This paper investigates the use of building performance simulation tools as a method of informing the design ... [more ▼]

Informed decision-making is the basis for the design of Net Zero Energy Buildings (NZEBs). This paper investigates the use of building performance simulation tools as a method of informing the design decision of NZEBs. The aim of this study was to develop a design decision making tool, ZEBO, for zero energy residential buildings in hot climates and to evaluate the effect of a simulation-based decision aid, on informed decision-making using sensitivity analysis. An assessment of the role of the BPS tools used in informing the decision-making was ascertained through cases studies, usability testing and several self-reported metrics. The paper provides results that shed light on the effectiveness of sensitivity analysis as an approach for informing the design decisions of NZEBs [less ▲]

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See detailSOlutions for Low Energy Neighbourhoods : Rapport scientifique et technique n°1
Marique, Anne-Françoise ULg; Cuvellier, Simon; de Meester, Tatiana et al

Report (2013)

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See detailAchieving informed decision-making for net zero energy buildings design using building performance simulation tools
Attia, Shady ULg; De Herde, Andre; Gratia, Elisabeth et al

in Building Simulation (2013), 6(1), 3-21

Building performance simulation (BPS) is the basis for informed decision-making of Net Zero Energy Buildings (NZEBs) design. This paper aims to investigate the use of building performance simulation tools ... [more ▼]

Building performance simulation (BPS) is the basis for informed decision-making of Net Zero Energy Buildings (NZEBs) design. This paper aims to investigate the use of building performance simulation tools as a method of informing the design decision of NZEBs. The aim of this study is to evaluate the effect of a simulation-based decision aid, ZEBO, on informed decision-making using sensitivity analysis. The objective is to assess the effect of ZEBO and other building performance simulation tools on three specific outcomes: (i) knowledge and satisfaction when using simulation for NZEB design; (ii) users’ decision-making attitudes and patterns, and (iii) performance robustness based on an energy analysis. The paper utilizes three design case studies comprising a framework to test the use of BPS tools. The paper provides results that shed light on the effectiveness of sensitivity analysis as an approach for informing the design decisions of NZEBs. [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 detailSimulation-based decision support tool for early stages of zero-energy building design
Attia, Shady ULg; Gratia, Elisabeth; De Herde, André et al

in Energy and Buildings (2012), 49

There is a need for decision support tools that integrate energy simulation into early design of zero energy buildings in the architectural practice. Despite the proliferation of simulation programs in ... [more ▼]

There is a need for decision support tools that integrate energy simulation into early design of zero energy buildings in the architectural practice. Despite the proliferation of simulation programs in the last decade, there are no ready-to-use applications that cater specifically for the hot climates and their comfort conditions. Furthermore, the majority of existing tools focus on evaluating the design alternatives after the decision making, and largely overlook the issue of informing the design before the decision making. This paper presents energy-oriented software tool that both accommodates the Egyptian context and provides informative support that aims to facilitate decision making of zero energy buildings. A residential benchmark was established coupling sensitivity analysis modelling and energy simulation software (EnergyPlus) as a means of developing a decision support tool to allow designers to rapidly and flexibly assess the thermal comfort and energy performance of early design alternatives. Validation of the results generated by the tool and ability to support the decision making are presented in the context of a case study and usability testing. [less ▲]

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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 detailA comparative study of the ‘architect-friendliness’ of six building performance simulation tools
Attia, Shady ULg; Weytjens, Lieve; De Herde, André et al

in International Journal of Sustainable Building Technology and Urban Development (2012), 2(3), 237-244

Concerning net zero energy buildings, providing early design support for architects has never been more important. In this context, building performance simulation tools could be a strong supportive ... [more ▼]

Concerning net zero energy buildings, providing early design support for architects has never been more important. In this context, building performance simulation tools could be a strong supportive technique, when integrated early in the architectural design process. However, despite the available range of tools, most of them do not meet the architects' requirements. To identify this gap, this study compared the ‘architect-friendliness’ of six state-of-the-art simulation tools, to highlight the architects' requirements for these tools and to develop guidelines for researchers and tool developers. The examined tools included ECOTECT, IES/VE – Sketch-Up, Energy10, eQuest, HEED, and Design Builder. The analysis was based on an extensive list of criteria defining the user-friendliness of tools from an architect's point of view. The results show that no single tool is entirely adequate to assist the architect's decision-making process. One of the major limitations is the poor communication and visualization of the output results. [less ▲]

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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 ▲]

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See detailProposition de redéfinition pragmatique des bâtiments net-zéro énergie
Moeseke, Goffrey; Attia, Shady ULg; Massart, Catherine et al

in Symposium PassiveHouse 2012 (2012, January)

La notion de NZEB, en tant qu’indicateur de performance, doit répondre à un triple objectif de rigueur scientifique, d'ambition proportionnelle à l'enjeu et de pragmatisme. Nous montrons que la définition ... [more ▼]

La notion de NZEB, en tant qu’indicateur de performance, doit répondre à un triple objectif de rigueur scientifique, d'ambition proportionnelle à l'enjeu et de pragmatisme. Nous montrons que la définition actuelle des NZEB ne répond pas de façon optimale à ces 3 exigences. Dès lors, nous proposons une autre approche de la performance énergétique des bâtiments, centrée sur la dissociation des indicateurs et leur évaluation relative aux potentiels et contraintes du projet d’architecture. Plus qu’une redéfinition, le résultat de cet article est l’embryon d’un outil de guidance énergétique parallèle aux étapes de développement d'un projet. [less ▲]

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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 ▲]

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See detailLe projet de recherches SAFE
Marique, Anne-Françoise ULg; De Meester, Tatiana; De Herde, André et al

Poster (2011, December 08)

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See detailTowards strategic use of BPS tools in Egypt
Attia, Shady ULg; Hamdy, Mohamed; Samaan, Mina et al

in Proceedings of 12th International Building Performance Simulation Association - 2011 (2011, November 14)

This paper provides an overview of the use of building performance simulation (BPS) among the building design professionals in Egypt. To assess the situation and highlight the status and difficulties ... [more ▼]

This paper provides an overview of the use of building performance simulation (BPS) among the building design professionals in Egypt. To assess the situation and highlight the status and difficulties encounter in the usage and the needs for BPS tools, three workshops were held, in July and August 2010 in Cairo. The paper first presents a brief overview of the status of the use of BPS in practice then describes the methods used, including, surveys, interviews, tools testing, brainstorming sessions and discussions. Finally, the study presents recommendations for the process of developing and using performance simulation tools for building design support. [less ▲]

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See detailEarly design simulation tools for net zero energy buildings: a comparison of ten tools
Attia, Shady ULg; De Herde, André

in Conference Proceedings of 12th International Building Performance Simulation Association, 2011 (2011, November)

Given the challenges to design Net Zero Energy Buildings (NZEBs), the use of Building Performance Simulation (BPS) tools during early design phases has been indispensable. In this context, we compare ten ... [more ▼]

Given the challenges to design Net Zero Energy Buildings (NZEBs), the use of Building Performance Simulation (BPS) tools during early design phases has been indispensable. In this context, we compare ten early design BPS tools. The aim is to define the potential of using and integrating the tools by architect during the design of NZEBs. The examined tools include HEED, e-Quest, ENERGY-10, Vasari, Solar Shoebox, Open Studio Plug-in, IES-VE- Ware, DesignBuilder, ECOTECT and BEopt. The comparison is based on two different criteria sets. The results describe tools limitations and major requirements to meet the NZEBs objective implications. [less ▲]

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See detailDesign Decision Tool for Zero Energy Buildings, Passive and Low Energy Architecture,
Attia, Shady ULg; De Herde, André

in Proceedings of Passive and Low Energy Architecture (PLEA) 2011 (2011, July 13)

Proposing initial ideas for zero energy buildings is a difficult task. Various existing BPS tools have been proposed and are used to support the design of zero energy buildings during later design stages ... [more ▼]

Proposing initial ideas for zero energy buildings is a difficult task. Various existing BPS tools have been proposed and are used to support the design of zero energy buildings during later design stages. However, this is when many detailed decisions about the design have already been taken. There is a growing awareness to integrate BPS tools in the design process during early design phases. This is one of the main objectives of that we adopt here to develop a suggested decision tool. In this paper, we specifically discuss the realization of a tool for early architectural design of zero energy housing. The paper presents the first prototype of this tool that has been tested with different volunteers to see how they react. A major focus of his work is the graphical user interface. We describe the interface development process, the resulting prototype and its performance for initial design conception of different zero energy housing typologies. We also identify direction for future development of the tool. [less ▲]

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See detailDefining Zero Energy Buildings from a Cradle to Cradle Approach
Attia, Shady ULg; De Herde, André

in Conference proceedings of Passive and Low Energy Architecture (PLEA) 2011 (2011, July)

Several bodies including the DOE, ASHRAE and the IEA SHC Task 40 are working on developing definitions for Net Zero Energy Buildings (NZEBs). Most existing definitions are based on setting a performance ... [more ▼]

Several bodies including the DOE, ASHRAE and the IEA SHC Task 40 are working on developing definitions for Net Zero Energy Buildings (NZEBs). Most existing definitions are based on setting a performance metric (quantity and quality) such as site energy, source energy, energy costs, or emissions, and a boundary for the energy source. However, the problem of most existing definitions is that they neglect the energy use during the whole building lifecycle, neglect the climatic context, neglect the urban or city scale, derive from a ‘zero’ or neutralizing notion, link the energy use to area separately from occupants and do not specify the intended definition audience they address e.g. policymakers or building developers or construction professionals. On the other hand, the cradle to cradle approach encourages the creation of ecologically positive footprint buildings where buildings are very efficient by design and by using suitable technologies to become energy positive. The cradle to cradle approach allows us to examine broader criteria including the embodied energy, environmental impact, energy storage and the management of plus energy. Therefore, in this paper, we discuss those problems and suggest a necessary shift to approach NZEB definition, from a cradle to cradle approach rather from a balance approach. This paper provides an overview of existing definitions and compares their impact toward cradle to cradle NZEBs. Finally, the paper sets three principles for defining NZEBs and suggests a definition, metric and calculation method from a cradle to cradle approach. [less ▲]

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See detailSelection Criteria for Building Performance Simulation Tools: Contrasting Architects and Engineers Needs
Attia, Shady ULg; Hensen, Jan LM; Beltrán, Liliana et al

in Journal of Building Performance Simulation (2011), 5(3), 155-169

This article summarises a study undertaken to reveal potential challenges and opportunities for using building performance simulation (BPS) tools. The article reviews current trends in building simulation ... [more ▼]

This article summarises a study undertaken to reveal potential challenges and opportunities for using building performance simulation (BPS) tools. The article reviews current trends in building simulation and outlines major criteria for BPS tool selection and evaluation based on analysing users' needs for tools capabilities and requirement specifications. The research is carried out by means of a literature review and two online surveys. The findings are based on an inter-group comparison between architects and engineers. The aim is to rank BPS tool selection criteria and compare 10 state-of-the-art BPS tools in the USA market. Five criteria are composed to stack up against theories and practices of BPS. Based on the experience gained during the survey, suggested criteria are critically reviewed and tested. The final results indicate a wide gap between architects' and engineers' priorities and tool ranking. This gap is discussed and suggestions for improvement of current tools are presented. [less ▲]

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See detailA comparative study of the ‘architect-friendliness’ of six building performance simulation tools
Weytjens, Lieve; Attia, Shady ULg; Verbeeck, Griet et al

in Proceedings of Sustainable Buildings CIB 2010 (2010, October 11)

Concerning net zero energy buildings, providing early design support for architects has never been more important. In this context, building performance simulation tools could be a strong supportive ... [more ▼]

Concerning net zero energy buildings, providing early design support for architects has never been more important. In this context, building performance simulation tools could be a strong supportive technique, when integrated early in the architectural design process. However, despite the available range of tools, most of them do not meet the architects’ requirements. To identify this gap, this study compared the ‘architect-friendliness’ of six state-of-the-art simulation tools, to highlight the architects’ requirements for these tools and to develop guidelines for researchers and tool developers. The examined tools included ECOTECT, IES/VE – Sketch-Up, Energy10, eQuest, HEED, and Design Builder. The analysis was based on an extensive list of criteria defining the user-friendliness of tools from an architect’s point of view. The results show that no single tool is entirely adequate to assist the architect’s decision-making process. One of the major limitations is the poor communication and visualization of the output results. [less ▲]

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