Multifunctional innovative solutions for the optimization of primary energy consumption and indoor liveability in the building system

As part of the SMART CASE project, Graded’s contribution included:

• executive design (construction and plant engineering) and testing of a real-scale demonstrator building with zero energy (NZEB) for residential use, with innovative features, powered by RES

• construction (supply and installation) of the technological systems serving a real-scale demonstrator building with zero energy (NZEB), for residential use, with innovative features, powered by RES.

Therefore Graded, after taking care of the entire design phase (architectural, structural and plant engineering), took care of the construction phase of the demonstrator, taking care of all the professional figures necessary for the construction, except for the tester during the work phase which is commissioned by the STRESS Consortium.

Scientific research initially envisaged going to evaluate the possible plant solutions to be adopted and taken into account for design purposes and then subsequently implemented in the full-scale demonstrator. The goal to be pursued was to have a zero-impact building, i.e. a building in which the demand for energy is completely or almost met by renewable energy sources. Graded SpA responded to the aforementioned needs by mechanically and energetically analyzing various plant solutions and at the end of these considerations it endorsed the following solutions, in agreement with the other project partners, for the plant of the building under study:

• Compact aggregate for air conditioning, mechanical ventilation and domestic hot water production

Multi-split ducted machines

Solar thermal system

Geothermal plant

Photovoltaic system with storage system

• Electrical system with LED lamps with low energy consumption and with a wide possibility of varying color temperature.

The monitoring system controls and manages each individual user in the building, also supervising the electrical production of the photovoltaic system in order to program the consumption of individual appliances to optimize electrical self-consumption.

The building was inaugurated on 16th January 2018.

Parties involved

University of Naples “Federico II”, University of Sannio, Consortium TRE (Technologies for Building Recovery)