Open AccessThe energy retrofit of building façades in 22@ innovation district of Barcelona: energy performance and cost-benefit analysis.
Author(s) -
Mauro Manca,
Prochazkova Zuzana,
Umberto Berardi,
Flores Larsen Silvana,
Pich-Aguilera Felipe,
Batlle Teresa
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/609/7/072067
Subject(s) - context (archaeology) , thermal comfort , directive , energy performance , thriving , architectural engineering , zero energy building , efficient energy use , civil engineering , environmental science , engineering , computer science , meteorology , geography , archaeology , sociology , social science , electrical engineering , programming language
Under the current Energy Performance of Buildings Directive, EU countries must set building energy renovation as a goal for future development of the cities. The 22@ district of Barcelona is one of the most thriving innovation districts of Europe with an increasing market for office buildings. In this framework, the present paper evaluates the effectiveness of a series of strategies considered the real case project of the energy retrofit of an existing building in 22@. In particular, the study presents the results of different scenarios of building retrofits, where simulations of dynamic envelopes are performed, with the inclusion of a conventional ventilated façade, Living Green Walls and Phase Change Material (PCM) for thermal energy storage. The different scenarios are compared in terms of energy performance, enhanced comfort and cost-benefit analysis. The benefits of latent thermal energy storage, improved thermal inertia and evapotranspiration of the vegetated elements are also assessed. Eventually this study helps understanding the feasibility of the implementation of the nZEB standard in energy retrofit of buildings in the specific context of Barcelona and Spain.