Civil Engineering Reference
In-Depth Information
Fig. 2
Case study B—plan
Table 1
Geometrical features of the dwellings
Envelope
Case study A
Case study B
Internal floor area [m
2
]
134.22
53.39
Overall conditioned volume [m
3
]
540.00
242.61
External wall surface [m
2
]
160.47
89.22
Windows total surface [m
2
]
17.64
13.56
Overall surface of the envelope [m
2
]
480.00
102.78
Envelope surface/conditioned volume ratio [m
-1
]
0.890
0.424
Heating system
Thermal power [kW]
26
150 (40 dwellings)
Global efficiency [%]
80
81
Table 2
Selected location
Locality
Climatic zone
Degree days [C day]
Design temperature [C]
Lampedusa
A
568
4
Palermo
B
751
5
Napoli
C
1,034
2
Roma
D
1,415
0
Milan
E
2,404
-5
