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Title: GCSE C3 L9 Life Cycle Assessment
Description: typed an example of a comparison of two life cycle processes side by side - cotton and nylon
Description: typed an example of a comparison of two life cycle processes side by side - cotton and nylon
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C3 L9 : Life Cycle Assessment
30 September 2015
12:37
Carry out a life cycle assessment
Weigh benefits and costs
Nylon advantages underlined in the
Following table ->- compared to cotton ,
Nylon is actually more environmentally
Friendly
...
Data sheet 2
Fibre production (per kg
product)
Polyester
fibre/fabric
Cotton
fibre/fabric
Energy
97
...
8 MJ
Hydrocarbon feedstock
1
...
2 litres
22 200 litres
CO2 to air
2
...
0 kg
SO2 to air
0
...
0 g
Fabric weaving (per kg
fabric)
Polyester
fibre/fabric*
Cotton
fibre/fabric
Energy
33
...
5 MJ
Water
1291 litres
3900 litres
CO2 to air
1
...
3 kg
SO2 to air
1
...
3 g
Performance during use Polyester
fibre/fabric*
Cotton
fibre/fabric
Weight
105 g/m2
155 g/m2
Shrinkage from 100
washes
3
...
7%
Loss of strength (100
washes)
8
...
0%
Energy per washâ€
3
...
4 MJ
Water per washâ€
49 litres
49 litres
Energy per tumble dry
Cannot be tumble
dried
12
...
5 MJ
7
...
5 m3
landfill
(CO2 and methane)
C3 Page 2
Title: GCSE C3 L9 Life Cycle Assessment
Description: typed an example of a comparison of two life cycle processes side by side - cotton and nylon
Description: typed an example of a comparison of two life cycle processes side by side - cotton and nylon