Representation of Thermal Building Simulation in Virtual Reality for Sustainable Building Yudi Nugraha Bahar

Representation of thermal building simulation in virtual reality for sustainable building Yudi Nugraha Bahar To cite this version: Yudi Nugraha Bahar. Representation of thermal building simulation in virtual reality for sustainable building. Signal and Image processing. Université de Bourgogne, 2014. English. NNT : 2014DI- JOS016. tel-01136697 HAL Id: tel-01136697 https://tel.archives-ouvertes.fr/tel-01136697 Submitted on 27 Mar 2015 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Chapter 1 - Introduction Representation of Thermal Building Simulation in Virtual Reality for Sustainable Building YUDI NUGRAHA BAHAR i Contents Page | ii Doctoral Dissertation - Yudi Nugraha Bahar - 2014 Chapter 1 - Introduction Présenté pour obtenir Le grade de Docteur de l’Université de Bourgogne Spécialité : Instrumentation et Informatique de l’Image 15 Avril 2014 Jury : M. Gilles Gesquiere, Professeur, Université Lumière Lyon 2, Rapporteur M. Livio De Luca, Ingénieur de Recherche, CNRS, Rapporteur M. Jean-christophe Lapayre, Professeur, Université de Franche-Comté, Examinateur M. Christophe Nicolle, Professeur, Université de Bourgogne, Directeur de Thèse M. Christian Père, Maître de conférences, ENSAM ParisTech, Invité Doctorat préparé au sein de l’Institut Image, dans l’équipe projet Gunzo et projet CoRDOBA Cluny, du laboratoire LE2I, ENSAM ParisTech et l’Université de Bourgogne iii Contents Page | iv Doctoral Dissertation - Yudi Nugraha Bahar - 2014 Acknowledgements Acknowledgements First of all I would like to thank my supervisors Christian Pere and Pr. Christophe Nicolle for giving me the possibility to conduct this research and for their continuous help, advice, encouragement, and patience. I have been extremely lucky to have Christian Pere as my supervisor in Cluny who cared so much about my work, and who responded to my questions and queries wisely. Pr. Christophe Nicolle for his continual support and useful guidance during the years of study. Their wisdom, sense of humor and kindness never ceased to impress and educate me and I am sincerely grateful to them. I would also like to thank the staff and students at ENSAM ParisTech Cluny, Institute Image Chalon sur Saone, LE2I - UMR CNRS 6306, and Bourgogne University Dijon, they created a pleasant environment to work in. I also thank to my working mates that I had the pleasure to work with: Jeremie Landrieu and Gunzo team for their cooperation and the interesting discussions that we had all these years. This highly skillful team gave me the chance to exchange ideas and to learn a lot from their experiences. I will always remember the golden times when our working rooms were full of great people. Also particular thanks to all other colleagues, individuals and institutions who have given their have contribution to this work and cannot be mentioned one by one. I also wish to thank the Ministry of National education and culture Republic of Indonesia (Dikti- Diknas) and Gunadarma University Jakarta for providing financial support. Pr. E.S. Margianti and Pr. Suryadi Harmanto as head of Gunadarma University that gave me a valuable support. Pr. Sarifuddin Madenda and Pr. Fabrice Meriaudeau, without their support this opportunity won't be happen. Finally, my greatest thanks to my wife Suci for her love, unconditional support and sacrifice, parents, brothers and sisters, and friends in Indonesia (Jakarta & Makassar) and in France (Dijon, Paris, Cluny), les amis Marocains et Tunisiens, as well as Franco-Indo family who have always been supportive. Representation of Thermal Building Simulation in Virtual Reality for Sustainable Building Page | i Contents Page | ii Doctoral Dissertation - Yudi Nugraha Bahar - 2014 Abstract Abstract The importance of energy efficiency as well as integration of advances in sustainable building design and VR technology have lead this research to focus on thermal simulation results visualized in a virtual environment (VE). The emphasis is on the representation of thermal building simulation (TBS) results and on the perception of thermal data simulated in a VE. The current application of the design process through energy efficiency in VR systems is limited mostly to building performance predictions and design review, as the issue of the data formats and the workflow used for 3D modeling, thermal calculation and VR visualization. Different applications and tools involved to represent TBS in VE are become the challenge of this work. Many 3D modeller, thermal simulation tools and VR tools are available and they are differ in their function and platform. Issues of data format exchange, appropriate tools and equipments from this situation require an interoperability solution that needs to be structured in a workflow method. Significances and barriers to integration design with CAD and TBS tools are also outlined in order to transfer the model to VR system. Therefore, the idea then is to use Building Information Model (BIM) extensively used in Architecture, Engineering and Construction (AEC) community. It then continued to evaluate the current trends for TBS representation in VE, to create data transfer method, and to integrate them in the workflow. After a review in thermal simulation and an evaluation of related works, we specify the application, method and tools for our objectives. An application of a method of data transfer and presentation of data in VE are formulated and tested. This effort conduct using a specific data workflow which performed the data transfer through 3 phases. This relies on the smooth exchange of data workflow between CAD tools, thermal calculation tools and VR tools. Presentation of data in VE is conducted through immersive visualization and intuitive interaction. An experiment scenario of a thermal simulation in VR system was created to interactively visualize the results in the immersion room and tested by some respondents. The system include with friendly interface for interaction. It presents a realistic 3D model of the project (Gunzo room) in existing condition and renovated version, and their TBS results visualized in some visualization metaphor. In the experiment, the method which bundled in an application brings together within a couple of virtual scenario and a software/hardware solution. The obtained results concentrate on visualization, interaction and its feedback. Some visualization metaphor are tested and evaluated to present more informative TBS results where the user can interact and perceive the impact of their action. Evaluation of the application prototype showed various levels of user satisfaction, and improvements in the accuracy and efficiency of data interpretation. The research has demonstrated it is possible to improve the representation and interpretation of building performance data, particularly TBS results using visualization techniques. Using specific method, the data flow that starts from the design process is completely and accurately channelled to the VR system. The method can be used with any kind of construction project and, being a flexible application, accepts new data when necessary, allowing for a comparison between the planned and the constructed. Keywords: Thermal building simulation, BIM, Three-dimensional (3D), Virtual reality, Data integration, Scientific visualization Abstract Representation of Thermal Building Simulation in Virtual Reality for Sustainable Building Page | iii Contents The importance of energy efficiency as well as integration of advances in sustainable building design and VR technology have lead this research to focus on thermal simulation results visualized in a virtual environment (VE). The emphasis is on the representation of thermal building simulation (TBS) results and on the perception of thermal data simulated in a VE. The current application of the design process through energy efficiency in VR systems is limited mostly to building performance predictions and design review, as the issue of the data formats and the workflow used for 3D modeling, thermal calculation and VR visualization. Different applications and tools involved to represent TBS in VE are become the challenge of this work. Many 3D modeller, thermal simulation tools and VR tools are available and they are differ in their function and platform. Issues of data format exchange, appropriate tools and equipments from this situation require an interoperability solution that needs to be structured in a workflow method. Significances and barriers to integration design with CAD and TBS tools are also outlined in order to transfer the model to VR system. Therefore, the idea then is to use Building Information Model (BIM) extensively used in Architecture, Engineering and Construction (AEC) community. It then continued to evaluate the current trends for TBS representation in VE, to create data transfer method, and to integrate them in the workflow. After a review in thermal simulation and an evaluation of related works, we specify the application, method and tools for our objectives. An application of a method of data transfer and presentation

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