The recent worldwide environmental issues impose to reduce the energy consumption and the greenhouse gas emissions of the building sector, keeping in mind the whole life cycle of construction materials. The Itaca protocol (Institute for Innovation and Transparency of Contracts and Environmental Sustainability) promotes the use of recycled, renewable and locally sourced materials; in particular, the definition of product’s sustainability is complex, and the presence of one or more “eco” features does not necessarily make it “eco” in its entirety. A multi-objective analysis has been carried out in order to identify high energy efficiency external walls for Zero Energy Buildings (ZEBs) in the warm climate, privileging eco-friendly building materials. The definition of the external walls for Mediterranean climate with an optimal multilayer package through the integration of a multi-criteria optimization analysis was carried out in Modefrontier rel.4.3 environment with calculation procedures to evaluate the dynamic performance of building components developed in MatLab rel.7.0 environment. The optimization has been performed in terms of static transmittance, periodic thermal transmittance, decrement factor, time shift, areal heat capacity, thermal admittance, surface mass, thickness and Itaca score. The topic of this paper is to define a method for the design of high efficiency external walls of new low-cost residential buildings among which the designer can choose the proper solution for his application, according to the Pareto front of the multi-objective problem.
Multi-Objective Optimization Analysis for Selection of Eco-Friendly Materials According to Itaca Protocol for Zero Energy Buildings in the Mediterranean Climate
BAGLIVO, CRISTINA;CONGEDO, Paolo Maria;LAFORGIA, Domenico
2014-01-01
Abstract
The recent worldwide environmental issues impose to reduce the energy consumption and the greenhouse gas emissions of the building sector, keeping in mind the whole life cycle of construction materials. The Itaca protocol (Institute for Innovation and Transparency of Contracts and Environmental Sustainability) promotes the use of recycled, renewable and locally sourced materials; in particular, the definition of product’s sustainability is complex, and the presence of one or more “eco” features does not necessarily make it “eco” in its entirety. A multi-objective analysis has been carried out in order to identify high energy efficiency external walls for Zero Energy Buildings (ZEBs) in the warm climate, privileging eco-friendly building materials. The definition of the external walls for Mediterranean climate with an optimal multilayer package through the integration of a multi-criteria optimization analysis was carried out in Modefrontier rel.4.3 environment with calculation procedures to evaluate the dynamic performance of building components developed in MatLab rel.7.0 environment. The optimization has been performed in terms of static transmittance, periodic thermal transmittance, decrement factor, time shift, areal heat capacity, thermal admittance, surface mass, thickness and Itaca score. The topic of this paper is to define a method for the design of high efficiency external walls of new low-cost residential buildings among which the designer can choose the proper solution for his application, according to the Pareto front of the multi-objective problem.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
