Application of multi-objective optimization for resolving conflicts when selecting windows

Elaheh Jalilzadehazhari, Georgios Pardalis, Jimmy Johansson, Peter Johansson

Research output: Contribution to conferenceAbstractAcademic

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Abstract

Sweden passed legislation to achieve a target of net zero greenhouse gas emissions by the end of 2045. The Energy Performance of Building Directive further obliged European countries to ensure zero-energy building codes and improve the quality of indoor environments when buildings are renovated, as approximately 40% of total greenhouse gas emissions in Sweden are produced while heating buildings. Windows currently play a significant role in improving the quality of indoor environments and cutting total energy consumption, thereby reducing greenhouse gas emissions and mitigating environmental impact. Selecting a suitable window design is a complicated task compounded by two main difficulties: i) the availability of multiple window designs, each with a different glazing system, size, form and position; and ii) conflict between visual comfort, thermal comfort and energy consumption. Previous studies have primarily analysed a limited selection of window designs; however, analyzing a wide variety of glazing systems, sizes, forms and positions will help resolve the above mentioned difficulties, thereby ensuring zero-energy building codes while improving the quality of an indoor environment. A multi-objective optimization was therefore completed to analyse the performance of a wide variety of window design variables and select suitable designs for an office room in Sweden. The results show the potential of multi-objective optimization to resolve the difficulties of selecting suitable window designs.
Original languageEnglish
Publication statusPublished - 24 Sep 2019
Externally publishedYes
EventThe 9th International Conference on Sustainable Development in the Building and Environment(SuDBE2019)& the International Forum of Green and Healthy Buildings - Cambridge, United Kingdom
Duration: 22 Jul 201928 Jul 2019

Conference

ConferenceThe 9th International Conference on Sustainable Development in the Building and Environment(SuDBE2019)& the International Forum of Green and Healthy Buildings
CountryUnited Kingdom
CityCambridge
Period22/07/1928/07/19

Keywords

  • energy consumption
  • multi-objective optimization
  • visual comfort
  • thermal comfort

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