Environmental Engineering Reference
In-Depth Information
Table 6.12
Costs for the purchase and the installation of the components of the BAC system of
the test house
Component
Unit price (€)
Quantity
Total price (€)
Power supply
122.00
1
122.00
Contact interface
38.70
8
309.60
Temperature probes
157.50
8
1260.00
Magnetic contacts
2.70
8
21.60
Movement and lighting sensor
27.00
16
432.00
Dimmer
42.75
5
213.75
Actuators for shutters
45.00
8
360.00
Actuators for fan-coils
63.00
8
504.00
Control/actuators for lighting
45.00
8
360.00
Display for scenario
300.00
1
300.00
Central unit
1500.00
1
1500.00
Bus
150.00
1
150.00
Installation, general costs and gain of the contractor
1512.00
Total
6500.00
Table 6.13
Economic savings obtainable for the test house passing from the BAC efficiency
class D to the BAC efficiency class A for each energy performance class according to EN 15217
Starting energy performance class
Economic savings (€/year)
A
119.90
B
149.46
C
173.76
D
268.08
E
314.61
F
403.14
G
537.21
In Table
6.6
, the electrical energy consumption for lighting and ventilation of
the test house in the base case calculated according to (Italian Technical standard,
UNI TS 11300) using the tool SirSym-Home are reported.
For simplifying the calculations, the standard year has been divided into two
time periods: summer period (from the 1st of April to the 30th of September) and
winter period (from the 1st of October to the 31st of March).
In Tables
6.8
and
6.9
, the energy savings obtained improving the BAC effi-
ciency class from D to A and calculated using the BAC factors method are
