Paper Conference

Proceedings of BSA Conference 2015: Second Conference of IBPSA-Italy


Passive solutions for the optimization of the indoor environmental quality: a case study

Fabio Sicurella, Perla Colamesta

Abstract: An integrated energy concept of a building should include not only its energy consumption but also the quality of the indoor environment in terms of thermal, visual comfort and indoor air quality. Shadings, window construction materials and ventilation strategies have a significant impact on the “health” of the building and of its occupants; they should be studied carefully during the pre-design phase of the building. Evaluating thermal, visual comfort or IAQ individually is quite easy thanks to reference standards and simulation tools but it can imply non-optimised solutions or even design errors. Conversely, an integrated approach should include a simultaneous analysis of all these aspects of the indoor environmental comfort in order to propose optimised technical solutions or design strategies. Previous studies have proposed statistical indicators to manage thermal and visual comfort simultaneously. In the present study further indicators of IAQ (here CO2 was considered) were included in order to achieve a global environmental quality. This integrated approach was used for the optimisation of a new large office building in Switzerland. A parametric multi-objective analysis was carried out by means of EnergyPlus. This approach allowed for the optimization of design strategies (shadings, window materials, ventilation) for both energy savings and indoor environmental quality of the building.
Pages: 415 - 421