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17-IE-10March-08-web

17-IE-10March-08-web - The Impact of Material Choice on GHG...

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Industrial Ecology – Winter 2008 – Session 17 – March 10 Greenhouse Gases Materials Production Vehicle Manufacturing Vehicle Use Vehicle Disposal Material Choice The Impact of Material Choice on GHG Emissions from Vehicles The Impact of Material Choice on GHG Emissions from Vehicles Need for Life Cycle Assessment Need for Life Cycle Assessment
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Industrial Ecology – Winter 2008 – Session 17 – March 10 Material Average GHG Emissions from 2000 (in kg CO 2 eq / kg of material) Primary Production Secondary Production Steel 2.3 – 2.7 0.7 – 1.0 AHSS 2.3 – 2.7 0.7 – 1.0 Aluminum 13.9 – 15.5 1.4 – 2.0 Materials Production Vehicle Manufacturing Vehicle Use Vehicle Disposal Material Choice Source: IISI, IAI The Impact of Material Choice on GHG Emissions from Vehicles The Impact of Material Choice on GHG Emissions from Vehicles
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Industrial Ecology – Winter 2008 – Session 17 – March 10 Material All Estimates for Material in Body-in-White Applications Recycled Content Weight Savings Potential Steel 11 % – 15 % AHSS 11 % – 15 % ~ 25 % Aluminum 0 % – 11 % 30 – 50 % Materials Production Vehicle Manufacturing Vehicle Use Vehicle Disposal Material Choice The Impact of Material Choice on GHG Emissions from Vehicles The Impact of Material Choice on GHG Emissions from Vehicles
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Industrial Ecology – Winter 2008 – Session 17 – March 10 Parameter Value Range Fuel Savings per Weight Savings *) (in l/100km per 100kg saved) 0.11 – 0.48 Total vehicle mileage 100,000 – 291,543 km Materials Production Vehicle Manufacturing Vehicle Use Vehicle Disposal Material Choice *) Source: fka The Impact of Material Choice on GHG Emissions from Vehicles The Impact of Material Choice on GHG Emissions from Vehicles
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Industrial Ecology – Winter 2008 – Session 17 – March 10 Relationship between material choice and use phase GHG emissions Relationship between material choice and use phase GHG emissions x r r v g m f P = 3 2 x w drag v A c P = ρ y grav v g m P = x r v a m P = Rolling resistance Aerodynamic drag Gravity Acceleration Vehicle mass savings Material choice Material choice Vehicle design Vehicle design Energy savings per mass savings Power train efficiency Power train efficiency Driving cycle Driving cycle Total mileage Total mileage GHG emissions per fuel energy Fuel type Fuel type Production pathway Production pathway
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Industrial Ecology – Winter 2008 – Session 17 – March 10 Calculation of GHG reductions during vehicle use phase Calculation of GHG reductions during vehicle use phase ( 29 ( 29 WTW use GHG TM ES M k s GHG - + =
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