ENLARGEMENT OF “CAROSELLO” SHOPPING CENTRE
Enlargement of the area above ground – Mall and shops + Medium size stores: 16.000 sqm
Existing area above ground – Mall and Shops + Medium size stores: 15.800 sqm (excluding Carrefour Hypermarket)
Enlargement of underground Parking area: 30.000 sqm in total
Existing underground Parking area: 30.000 sqm in total
Enlargement of outside Parking area:15.000 sqm in total
Existing outside Parking area: 25.000 sqm in total
GREEN (grass covered) roof area: 15.000 sqm in total
Thermal power eliminated through evaporative cooling towers: 8,0 MW;
Thermal power from integrative boilers: 3,7 MW
Services provided by ARIATTA: Detailed Design and Site Supervision
Design Architect: One Works (Mi), Architect Leonardo Cavalli – Dunnet & Craven (UK)
Executive Architect: One Works (Mi), Architect Leonardo Cavalli
Structural Engineering: Redesco Srl (Mi) – Engineer Mauro Eugenio Giuliani
Project Management: Bear PM Srl (Mi) – Architect Steve Scamihorn
Building area: about 32,000 sqm
Project start/Project finish: 2005
Work start/Work completion:
Opening: October 2008
The deep level of integration with the studios of Architecture and Structural Engineering turned this into a very distinctive project on the sustainability and energy fronts.
The most peculiar feature of the enlargement is the grass-covered roof where several cones have been inserted, pointing North and allowing natural light to penetrate, yet blocking direct solar radiation.
The “light cones” allow to considerably reduce the use of artificial light during daytime; they also open automatically when external thermal conditions make the direct intake of untreated “external air” advantageous (“free-cooling”).
The GREEN ROOF increases significantly the thermal inertia of the system and the roof insulation.
The HVAC system is a condensation-water-loop type system. All cooling/conditioning units in the shops and medium size stores convert into heat pumps.
LED (Light Emitting Diode) lights and light signs are used extensively. Energy simulations carried out during the design phase have allowed to estimate a reduction in carbon dioxide emissions of around:
-27% due to the particular HVAC system, compared to a traditional condensation gas-fired boiler and cooling system, plus an additional
-7% due to the increased thermal inertia of the system and the roof thermal insulation (Green Roof).
-10% due to LED lighting technology and to a better exploitation of daylight when compared to a traditional fluorescent lighting system.