Environmental Engineering Reference
In-Depth Information
A
B
C
D
E
F
G
Cooling EER W/W
>3.2
3.0-3.2
2.8-3.0
2.6-2.8
2.4-2.6
2.2-2.4
<2.2
Heating COP W/W
>3.6
3.4-3.6
3.2-3.4
2.8-3.2
2.6-2.8
2.4-2.6
<2.4
FIGURE 9.6
Energy labels for air conditioners.
For air conditioners with heating capability (Figure 9.6), one can also find:
1. The heat output at full load in kW
2. The heating mode energy efficiency category
Note that there exist units with EER and COP greater than 5, so take a note
of the actual number when it is A rated.
9.2.1.5 Light Bulbs
On every label, you will find:
1. The energy efficiency category from A to G
2. The luminous flux of the bulb in lumens
3. The electricity consumption of the lamp in watts
4. The average life length in hours
9.2.2 Concluding Remarks
It can be concluded that it is important to incorporate an energy perfor-
mance directive as a standard in this region; such a goal will aid energy
savings in large buildings and will set regulations for energy-efficient
designs that are based on standard calculation methods. It is recom-
mended to
1. Develop standardised tools for the calculation of the energy perfor-
mance of buildings
2. Define system boundaries for the different building categories and
different heating systems
3. Prepare models for expressing requirements on indoor air quality,
thermal comfort in winter and, when appropriate, in summer, visual
comfort and so on
