ISH 2019

•••8••• Innovationen Saving energy with user-friendly buildings International research project on the relationship between user behaviour and energy performance I mproving energy efficiency of buildings is an important aspect of climate protection. Activities usually focus on energy-efficient construction and refurbishment, but increasingly the behaviour of users attracts attention. How exactly this behaviour influences the energy balance of a building and how to change it, these ques- tions are now being studied in a global project of the International Energy Agency (IEA), which is co- ordinated by Karlsruhe Institute of Technology (KIT) and Carleton University in Ottawa. About one third of worldwide pri- mary energy is presently being used for the operation of build- ings. As the area covered by build- ings is increasing constantly, en- ergy consumption rises in spite of improved energy efficiency. This result is reported by the Interna- tional Energy Agency (IEA). The organization also reports that so far unused potential savings amount to up to 80 per cent. But energy consumption of buildings cannot only be reduced by ener- gy-efficient building and refur- bishment, says Professor Andreas Wagner of the Building Science Group of KIT’s Department of Architecture. “Depending on the type of building and its use, con- sumption can be halved when en- ergy is used efficiently. Wasteful behaviour may nearly double con- sumption.” Often, user behaviour is affected adversely by thought- less automation, e.g. by an auto- matic heating system without an efficient user interface: “Persons having no other possibility to con- trol room temperature may open the window or use an inefficient radiant heater in addition.” To actually save energy, automation has to be designed such that us- ers can influence building technol- ogy at any time, Wagner says. To systematically study the rela- tionship between user behaviour and the energy performance of buildings, Wagner coordinates an interdisciplinary and international research project of the IEA in co- operation with Professor Liam O’Brien of Carleton University, Ottawa. The project first of all fo- cuses on fundamental aspects, i.e. how comfort parameters in build- ings, that is thermal, visual, olfac- tory, or acoustic conditions, inter- act with each other and affect an energy-relevant behavior. Studies will also cover the role of user in- terfaces and how thermostats, light switches, and blinds can be designed as smartly as possible. To model the user behaviour with respect to energy consumption, the researchers plan to use big data methods based on various data sets, such as data from build- ing technology or the Internet of Things (IoT). The research project is aimed at obtaining new findings, but also at deriving practical recommen- dations for the design and op- eration of buildings to enhance energy-efficient user behaviour. Since 1977, the IEA has been advis- ing governments and other stake- holders, such as construction industry, in the area of energy ef- ficiency. Its recommendations are based on the research programm “Implementing Agreement on Energy in Buildings and Commu- nities” (EBC) with 26 member states. Together with scientists from at least 14 countries, An- dreas Wagner and Liam O’Brien will now develop the scientific fundamentals for an annex to this agreement. The Mathematics Building on KIT’s Campus South is considered a perfectly energy-opti- mized building. Photo: Markus Breig / KIT Nachhaltig und effizient planen Neuer Studiengang Gebäudesystemtechnik an HTW Dresden gestartet Seit dem Wintersemester 2018/19 bietet die Hochschule für Technik und Wirtschaft Dresden (HTW Dresden) den neuen Studiengang Gebäudesystemtechnik an. Die Regelstudienzeit beträgt acht Se- mester und endet mit dem Ab- schluss Diplom. An moderne Gebäude werden heute viele Anforderungen in Be- zug auf Komfort, Sicherheit und Energieeffizienz gestellt. Gebäu- de und Anlagen müssen einerseits wirtschaftlich und ressourcen- schonend ausgeführt und betrie- ben werden können, gleichzeitig aber auch hohe funktionale und soziokulturelle Ansprüche erfül- len. Die zunehmend komplexer werdenden gebäudetechnischen Anlagen erfordern ingenieurtech- nisches und fachübergreifendes Know-how. Der Studiengang Ge- bäudesystemtechnik zeichnet sich durch seine hohe Interdisziplinari- tät aus. Neben den traditionellen anlagentechnischen Ausbildungs- inhalten wie Heizungstechnik, Klimatechnik, Sanitär- und Gas- technik, Wärme-, Schall- und Brandschutz umfasst er Module zur Gebäudeautomation, elek- trischen Gebäudeausrüstung einschließlich der Kommunika- tionssysteme sowie zum Informa- tionsmanagement. Im Labor Technische Gebäudeausrüstung werden ergänzend zu den Vorlesungen regelmäßig Praktika durchgeführt. Foto: HTW Dresden / Peter Sebb Loval Oy www.loval.fi Halle: 9.0 • Stand: B76 mobiheat GmbH www.mobiheat.de Halle: 11.0 • Stand: E81 Ouman Oy www.ouman.fi Halle: 10.3 • Stand: C46 Reliance Worldwide Corporation (UK) Ltd www.rwc.com Halle: 4.0 • Stand: A85 Zoppas Industries Heating Element Technologies www.zoppasindustries.com Halle: 9.0 • Stand: D86 Nichtaussteller: Böck Staubschutzsysteme KG www.planschutzhuellen.de Solar Promotion GmbH www.solarpromotion.de Worldwide Exhibitions Service Co., Ltd. (WES) www.wes-expo.com.cn Messetelegramm Anzeige