Conference Paper

Proceedings of Building Simulation 2019: 16th Conference of IBPSA

Characterisation of Heat Losses of Zero Emission Buildings (ZEB) in Cold Climate

Johannes Georg Brozovsky, Niki Gaitani, Arild Gustavsen
Norwegian University of Science and Technology, 7491 Trondheim, Norway

DOI: https://doi.org/10.26868/25222708.2019.210560
Abstract: It is well known that urban districts and neighbourhoods can form their own microclimate that can affect the energy balances of buildings significantly. In order to assess the effects of climatic parameters on a building’s performance, detailed knowledge about the energy balance of buildings is essential. In this study, the distribution of heat losses in a validated simulation model of a Zero Emission Building (ZEB) was analysed. The model was set to eight different cold climate locations and climate datasets to investigate the influence of wind and the building usage (residential and office building). The results show that in residential buildings envelope transmission, especially through windows and walls, dominate a typical ZEB’s energy losses. In office buildings, ventilation losses gain relevance due to more stringent requirements for ventilation rates. Wind sheltering can lower heat losses by 1.9 % to 8.3 %, depending on location and weather data.
Keywords: Microclimate, Zero Emission Buildings, Energy losses, Building energy performance simulation, Cold Climate
Pages: 343 - 350
Paper: