Page 282 - Materials Chemistry, Second Edition

270 LIFE CYCLE ASSESSMENT HANDBOOK

I P
TOEV-insulated ■
brick veneer - 1
Newcastle-North ■
100%
=U|1 L
I
1.02 P 1.58E9S 1.58E9S 1.58E9S =f
1.58E9S
Verdant floorplan - Verdant IBV - Verdant - Verdant - Domestic hot
Insulated brick Newcastle - HVAC Newcastle - ■ Newcastle - water
veneer -North equipment lighting
11.4% 12% ... 48.9% 1 13.6% 13.6% m

:zi 1
1.02p 1 02 p 1.36E6MJ
1.5E6MJ w
Verdant - Interior Verdant - Floors - Electricity, lo b Energy, from
walls-total total voltage, NSW 1 natural gas/AU U
average/AU U 1
13.33% [4.1β% 74.5% 14.3% H
Figure 12.1 Process tree showing relative contributions to greenhouse gas emissions in the life
cycle of a typical house including use phase energy consumption during 50 years, 3% limit
(i.e., only streams >3% of total have been included) [2].

Table 12.1 Indicative contribution of life cycle or value chain stages to total
environmental impact of a service.

Material Mining, Concentration Semis Final Use
Type Quarrying, and Refining Manufacture, Manufacture
Extraction Interim and
Product Assembly,
Final
Product

Metallic, Low Medium Low Low Very high
long life

Metallic, Medium High Medium Medium Medium
short life

Non- Low Medium Low Low Very high
metallic,
functional

Non- Medium High Medium Medium Negligible
metallic,
decorative
Energy Low Medium Low Low Very high
carriers