Norwegian University of Science and Technology BIM based iterative simulation - efficient building design: a case study Martin Tallberg and Rolf André Bohne Department of Civil and Environmental Engineering, NTNU, Høgskoleringen 7A, 7491 Trondheim, Norway
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Norwegian University of Science and Technology
BIM based iterative simulation -efficient building design: a case study
Martin Tallberg and Rolf André BohneDepartment of Civil and Environmental Engineering, NTNU, Høgskoleringen 7A,7491 Trondheim, Norway
Norwegian University of Science and Technology 2
Martin Tallberg
Norwegian University of Science and Technology
Building facades (Revit 2018) Room and space allocation (IDA-ICE 4.8)
Norwegian University of Science and Technology 4
Building design envelope
Norwegian University of Science and Technology
Room and space data
Norwegian University of Science and Technology
Envelope transmission: Norwegian TEK-17 standard
Norwegian University of Science and Technology
Energy use: Norwegian TEK-17 standard
Norwegian University of Science and Technology
Envelope transmission: ZEB recommendations
Norwegian University of Science and Technology
Energy use: ZEB recommendations
Norwegian University of Science and Technology
Design temperatures in main area (electric heating)
Break ven (PVGIS)
Norwegian University of Science and Technology
Photo voltaic payback time (PVGIS)
Norwegian University of Science and Technology 12
Comclusion
• The design option with the lowest energy demand was found to be the optional concept building with electric floor heating and a air-to-air heat pump designed according to the ZEB specifcations. – By retrofitting the design from TEK-17 standard to nZEB, the energy demand reduction
was found to be 22%.• The cost of retrofitting was found to be neglect able, compared to the cost of
energy efficient measures, like the photo voltaic system.• Furthermore, experimental verification of the demonstrated energy demand