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Life-Cycle-Assessment for Stoves and Ovens - ESU-services Ltd.

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10000<br />

9000<br />

8000<br />

7000<br />

6000<br />

5000<br />

4000<br />

3000<br />

2000<br />

1000<br />

eta<br />

0.12<br />

0.1<br />

0.08<br />

0.06<br />

0.04<br />

0.02<br />

0<br />

90%<br />

0<br />

90%<br />

space use<br />

(m2a)<br />

70%<br />

ecotoxicity terrestrial<br />

(kg)<br />

70%<br />

50%<br />

50%<br />

Erdgas in Gasherd<br />

Fluessiggas in Fluessiggasherd<br />

Strom in Elektroherd CH<br />

Strom in Elektroherd W-D<br />

Strom in Mikrowelle CH<br />

Stueckholz in 3 Steinefeuer<br />

Stueckholz in Holzherd<br />

Kerosin in Petroleumkocher<br />

30%<br />

30%<br />

Impact <strong>Assessment</strong><br />

10%<br />

10%<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

0<br />

90%<br />

10<br />

9<br />

8<br />

7<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

0<br />

90%<br />

70%<br />

waste heat<br />

(TJ)<br />

50%<br />

aquatic ecotoxicity<br />

(10E6m3)<br />

70%<br />

Fig. 7 Comparison <strong>for</strong> different impact categories <strong>for</strong> a range of stove efficiencies<br />

3.4 Detailed Analysis using Eco-indicator 95+<br />

This section will give a detailed analysis of the share contributed by different impact categories<br />

to the total of Eco-indicator 95+ points calculated. Fig. 8 shows this analysis. The absolute<br />

figure of found <strong>for</strong> cooking with electricity <strong>and</strong> gas in Switzerl<strong>and</strong> was about the same.<br />

But, the two alternatives show to have a different structure of the environmental impacts<br />

caused.<br />

- 20 -<br />

50%<br />

30%<br />

30%<br />

10%<br />

10%

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