Environmental Engineering Reference
In-Depth Information
Fig. 6.5
Stratigraphy of the
wall including the thermal
coating
Table 6.15
Costs for the purchase and the installation of the new windows and for the reali-
zation of the thermal coating
Component
Unit price [€]
Quantity
Total price [€]
Thermal break windows
11000.00
1
11000.00
Thermal coating
20000.00
1
20000.00
Preparation of wall and roof
7250.00
1
7250.00
Painting of the external walls
3100.00
1
3100.00
Installation, general costs and gain of the contractor
15000.00
1
15000.00
Total
56350.00
56350.00
reported. In particular, such values have been obtained by multiplying the values
in Tables
6.6
and
6.7
for f
BAC,e
and f
BAC,hc
, respectively.
The application of BACS and TBM allows the reduction of the total thermal
and electrical energy of the test house and, consequently, influences the energy
performance class of the house. Considering both the energy for heating and the
energy for hot water production, in Table
6.10
, are reported the EPI and the energy
performance class before and after the application of the class A BAC and TBM
functions.
From Table
6.10
it is easy to see that the utilization of BACS and TBM systems
produces an upgrade of the energy performance class of the building.
Table
6.11
shows the systems and components to be installed for improving the
BAC efficiency class of the test house from D to A.
In Table
6.12
the costs for the purchase and the installation of such components
and systems are reported.
The costs have been obtained as a result of a market analysis involving the most
important producers of monitoring, control and automation systems in Europe.
The economic analysis is performed considering a period of 30 years.
The cash flows are annualized considering an inflation rate equal to 2.0 %.
