Environmental Engineering Reference
In-Depth Information
Table 6.10
EPI and energy performance class before and after the application of BACS and
TBM
BAC efficiency class D
BAC efficiency class A
Starting
energy
performance
class
Energy for hot
water production
(kWh/year)
Energy for
heating
(kWh/year)
EPI
(kWh/
m
2
Energy for
heating
(kWh/year)
EPI
(kWh/
m
2
Ending
energy
performance
class
year)
year)
A
1,704
1,015
19.42
751
17.54
A
B
1,704
1,821
27.32
1,570
23.38
B
C
1,704
2,913
32.98
2,157
27.57
B
D
1,704
5,223
49.48
3,865
39.78
D
E
1,704
7,134
63.13
5,279
49.88
E
F
1,704
10,123
84.48
7,491
65.68
E
G
1,704
15,470
122.67
11,448
93.94
F
Table 6.11
Components to install in the test house for turning the BAC efficiency class from D
to A
Temperature control system
Lighting
control system
Shutter control system
Central
control
system
Temperature probes in every
room
Movement and
lighting
sensors in
every room
Controls, displays, actuators
for combined control of
lighting, shutters, curtains and
HVAC
Central unit
Power supply
Temperature central unit
Dimmers
PC
management
software
Magnetic contacts and related
interfaces for the detection of
the open or closed position of
doors and windows
External temperature probe
Actuators for fan-coil units
The starting BAC efficiency class is D because no TBM or BACS system is
installed in the house.
The BAC factors for thermal energy and for electrical energy to consider for the
passage of the BAC efficiency class from D to A are found from Table
6.3
:
f
BAC
;
hc
¼
0
:
81
=
1
:
10
¼
0
:
74
f
BAC
;
e
¼
0
:
92
=
1
:
08
¼
0
:
85
