Abstract
In recent years, climate change has been widely recognized as a potential problem. The building industry is taking a variety of actions towards sustainable development and climate change mitigation, such as retrofitting buildings. More than mitigation, it is important to account for climate change adaptation and investigate the probable risks and limits for mitigation strategies. For example, one major challenge may become achieving low energy demand without compromising indoor thermal comfort during warm seasons. This work investigates the future energy performance and indoor thermal comfort of four European cities belonging to four different climate zones in Europe; Barcelona, Koln, Brussels, and Copenhagen. An ensemble of future climate scenarios is used, including thirteen climate scenarios considering five different general circulation models (GCM) and three representative concentration pathways (RCP 2.6, RCP 4.5 and RCP 8.5). Through simulating the energy performance of the representative buildings in each city and considering several climate scenarios, this paper provides a comprehensive picture about the energy performance and indoor thermal comfort of the buildings for near-term, medium-term, and long-term climate conditions.
Highlights
Global building energy consumption accounts for 40% of global carbon emissions[1]
Through simulating the energy performance of the representative buildings in each city and considering several climate scenarios, this paper provides a comprehensive picture about the energy performance and indoor thermal comfort of the buildings for near-term, medium-term, and long-term climate conditions
In this work, the impact of climate change on the energy of Cologne, Barcelona, Brussels and Copenhagen was analyzed with sample buildings as representative residential areas
Summary
In Europe, building energy consumption accounts for 30% of the national energy consumption [2]. To achieve reasonable energy use in the context of future climate change, it is essential to understand the potential impact of global warming on the thermal performance of buildings and take appropriate measures to prevent unnecessary energy waste by saving energy Design and operations management. The external climate is an important factor affecting the internal environment of a building, so the energy consumption of a building, especially the energy used for heating and cooling, is closely related to the outdoor climate. It is expected that the strength and frequency of extreme climate events, such as heat/cold-waves, will increase, which will affect the energy use of buildings and energy flows in urban energy systems
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