Civil Engineering Reference
In-Depth Information
Table 4
Environmental indices for each case study
Building
Index
Benefits
Impacts
Net benefits
Brewery-Brno
GER [GJ]
51,382
1,657
49,725
GWP [10
3
kg CO
2
-eq]
3,087
82
3,005
ODP [kg CFC11 eq]
0.28
0.03
0.25
AP [kg SO
2
eq]
4,847
598
4,249
EP [kg PO
4
3-
eq]
394
59
335
Hol Church-Gol
GER [GJ]
8,927
172
8,755
GWP [10
3
kg CO
2
-eq]
499.5
10.5
489
ODP [kg CFC11 eq]
0.06
0
0.06
AP [kg SO
2
eq]
377
60
317
EP [kg PO
4
3-
eq]
41
7.6
33.4
College-Plymouth
GER [GJ]
2,142
97
2,045
GWP [10
3
kg CO
2
-eq]
117
7
110
ODP [kg CFC11 eq]
0.003
0
0.003
AP [kg SO
2
eq]
415
32
383
EP [kg PO
4
3-
eq]
30
2.4
27.6
Prøvehallen
GER [GJ]
25,748
4,078
21,670
GWP [10
3
kg CO
2
-eq]
2,697
216
2,481
ODP [kg CFC11 eq]
0.15
0.05
0.1
AP [kg SO
2
eq]
2,494
987
1,507
EP [kg PO
4
3-
eq]
205
118
87
Stuttgart
GER [GJ]
91,983
2,151
89,833
GWP [10
3
kg CO
2
-eq.]
5,230
115
5,115
ODP [kg CFC11eq]
0.37
0.04
0.33
AP [kg SO
2
eq]
3,852
753
3,099
EP [kg PO
4
3-
eq]
401
56
345
Vilnius
GER [GJ]
71,717
4,358
67,359
GWP [10
3
kg CO
2
-eq.]
4,077
218
3,859
ODP [kg CFC11eq]
0.4
0.16
0.24
AP [kg SO
2
eq]
3,206
1,253
1,953
EP [kg PO
4
3-
eq]
334
111
223
Plymouth, where no intervention for heat saving is performed, and for Vilnius,
where the energy saving is lower (about 30 %).
With regard to the electricity use, the highest saving is reached in the Stuttgart
case study (90 %), while at Plymouth College, the wind turbine installation
involved just 2 % of the yearly consumption, reaching unsatisfactory results
(see Table
3
).
Table
4
shows the outcomes of the environmental indices for each case study.
The results are not numerically comparable because of the different complexity
and scale of interventions. With regard to GER and GWP, two sets of building
retrofits with different and extended interventions can be identified:
• Stuttgart, Vilnius, Proevehallen and Brno case studies, which involve high
values of GER and GWP.
