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Lecture Halls, Milan (Italy)

Building owner
Politecnico di Milano is the largest technical university in Italy. With its 8 campuses and more than 40 departments, it covers all areas of specialization in design, architecture and engineering. Politecnico di Milano has about 40,000 students and 1300 professors and other staff.
  www.polimi.it

User
The building is occupied by the owner.

Utilization
The lecture halls (building 22) was constructed in 1999 and is utilized principally for lecture purpose. Twelve lecture rooms of different size are distributed on the first three floors. There are three computer rooms in the upper floor. Additionally the building includes some offices for secretariat and managment.

Building concept
The building has a cubic form. The facade is covered by black fiber reinforced concrete panels, which give the building a stoney look and additionally provide insulation. Building 22 has four floors (the basement is partially underground). The floor plan is square and has a central connective area. Around this area there are lectures rooms, staircases, sanitary rooms, management offices and some lounge areas for the students. In general, the building is constructed with brick and concrete walls. The slabs are also concrete and are lightened with large perforated blocks. The windows are double glazed with aluminum frames.

HVAC concept
HVAC plants are located on the upper floor. They are covered by a conic roof which is open in the center in order to permit air passage.

Heating and cooling are centralized. Heating is provided by two gas boilers of 244 kW power. Cooling is provided by a chiller with a  power of 424 kW. Air treatment is provided by two air handling units (AHU) with a total air flow of 35,000 m³/h. Exhaust air is extracted by four air extractors with a total air flow of 28,500 m³/h. Heat recovery from the exhaust air is provided by an air-water heat exchanger, but only during winter. The whole building is climatized, except for the bathrooms that have radiators for heating in winter.

Only the handicapped bathroms are provided with domestic hot water (DHW) by three small electric boilers.

The climatization system consists of primary air treatment and two pipe fancoils.

All lamps are fluorescent. Furthermore, the building has a building energy management system (BEMS), which is not connected to the central control of the university buildings and therefore is not in use.

General data

Year of erection 1999
Use University
Net floor area 3,200 m²
Consumption of electricity 311,000 kWh/a
  104 kWh/(m²a)
Consumption of heating 276,000 kWh/a
  93 kWh/(m²a)
HVAC equipment heating, ventilation, air conditioning,
  building automation system
Energy source gas
Owner Politecnico di Milano

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Total view of the building
South facade
Detail of the facade
Facade panel in detail
Connection of panels
Entrance of the building
Interior
Computer room
Lecture room
Lighting
HVAC-Boiler
HVAC-Chiller
HVAC- Distribution