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Life Cycle Analysis for Office chair

by: Mirjam Visser, 2010-08-06 09:44:49 UTC

estimate

Z Shanghai production
Z Takeback option
Z recycled option
Compare Scenarios

Scenario: Z Shanghai production
Last Updated: 2012-01-04 08:57:24 UTC
transport first tier to factory 16t lorry, from second to first tier and haworth to customers 28t trucks

Materials
Processing
Transport
Usage
Consumption
Disposal
Results

Materials used in the product

Item	Cost per unit	Unit	Quantity	Total Cost
PA 6	2.073	kg	4.199	8.70453
Corrugated board, recycling fibre, double wall, at plant/RER S	0.179	kg	3.0	0.537
Aluminium, production mix, at plant/RER S	2.717	kg	7.324	19.8993
A517a	0.609	kg	6.24	3.80016
Acrylonitrile-butadiene-styrene copolymer, ABS, at plant/RER S	0.642	kg	0.533	0.342186
Polyurethane, flexible foam, at plant/RER S	0.88	kg	1.636	1.43968
PET amorph	1.034	kg	0.52	0.53768
PP	1.026	kg	1.296	1.3297
Total Cost				36.590236
Weight Adjustment		[kg]	0.0
Total Weight		[kg]	24.75

Processing Steps

Item	Cost per unit	Unit	Quantity	Total Cost
Injection moulding/RER S	0.248	kg	7.664	1.90067
Foaming, expanding/RER S	0.177	kg	0.0	0.0
Casting, brass/CH S	0.046	kg	7.324	0.336904
Rolling brass	0.0609	kg	6.24	0.380016
Powder coating, steel/RER S	1.358	m2	0.56	0.76048
Extrusion, plastic film/RER S	0.095	kg	0.52	0.0494
Total Cost				3.42747

Transport

Item	Cost per unit	Unit	Quantity	Total Cost / [1000 kg]
Truck+Trailer net 24 ton average load 50%	0.035	tkm	24.75	0.86625
Transport, van <3.5t/RER S	0.387	tkm	2.475	0.957825
Truck+Trailer net 24 ton average load 50%	0.035	tkm	24.75	0.86625
Total Cost				0.06658554375

Usage Patterns over the lifetime of the object

Lifetime [years]	10.0
Usage per day [times/day]	1
Usage per time [hours/time]	8
Usage per week [days/week]	5
Electrical Wattage [kWatt]	0

Consumables per use of the product

Item	Cost per unit	Unit	Quantity	Total Cost / [time]
Total Cost				0.0

Disposal, Recycling and Waste Treatment

Item	Cost per unit	Unit	Quantity	Total Cost
Steel, recycling benefit	-0.288	kg	6.24	-1.79712
PE , recycling benefit	-0.677	kg	0.0	0.0
PA (nylons, polyamides), recycling benefit	-1.547	kg	0.0	0.0
Paper Cardboard, Leather combustion in electrical power plant	-0.234	kg	0.0	0.0
Aluminium, recycling benefit	-3.603	kg	7.324	-26.3884
landfill	0.118	kg	11.186	1.31995
Total Cost				-26.86557
Total Weight			24.75 kg

Phase	Total Eco Costs [Euro]	Carbon Footprint [kg CO2 equiv.]	Recipe Total [Pt]	Recipe Human Health [Pt]	Recipe Eco Tox [Pt]	Recipe Mat Repl [Pt]	Recipe Ionising Radiation [Pt]	Bees Total [mPt]	Bees Ecotoxicity [mPt]	Bees Water Intake [mPt]
Materials	36.59	126.88	0	0	0	0	0	17055	0.5241	5.9206E-08
Processing	3.4275	15.62	0	0	0	0	0	2327.2	0.01754	1.1663E-08
Transport	0.066586	0.23008	0	0	0	0	0	10.169	0.00044223	1.8757E-10
Consumption	0	0	0	0	0	0	0	0	0	0
Disposal	-26.866	-86.256	0	0	0	0	0	0	0	0
Total	14.106	58.329	0.334	0.142	0.132	0.06	0	19562	1.1901	7.1071E-08

Scenario: Z Takeback option
Last Updated: 2011-05-17 05:01:04 UTC
transport first tier to factory 16t lorry, from second to first tier and factory/warehouse to customers 28t trucks

Materials
Processing
Transport
Usage
Consumption
Disposal
Results

Materials used in the product

Item	Cost per unit	Unit	Quantity	Total Cost
PA 6	2.073	kg	4.199	8.70453
Corrugated board, recycling fibre, double wall, at plant/RER S	0.179	kg	3.0	0.537
Aluminium, production mix, at plant/RER S	2.717	kg	7.324	19.8993
A517a	0.609	kg	6.24	3.80016
Acrylonitrile-butadiene-styrene copolymer, ABS, at plant/RER S	0.642	kg	0.533	0.342186
Polyurethane, flexible foam, at plant/RER S	0.88	kg	1.636	1.43968
PET amorph	1.034	kg	0.52	0.53768
PP	1.026	kg	1.296	1.3297
Total Cost				36.590236
Weight Adjustment		[kg]	0.0
Total Weight		[kg]	24.75

Processing Steps

Item	Cost per unit	Unit	Quantity	Total Cost
Injection moulding/RER S	0.248	kg	7.664	1.90067
Foaming, expanding/RER S	0.177	kg	0.0	0.0
Casting, brass/CH S	0.046	kg	7.324	0.336904
Rolling brass	0.0609	kg	6.24	0.380016
Powder coating, steel/RER S	1.358	m2	0.56	0.76048
Extrusion, plastic film/RER S	0.095	kg	0.52	0.0494
Total Cost				3.42747

Transport

Item	Cost per unit	Unit	Quantity	Total Cost / [1000 kg]
Truck+Trailer net 24 ton average load 50%	0.035	tkm	49.5	1.7325
Transport, van <3.5t/RER S	0.387	tkm	2.475	0.957825
Truck+Trailer net 24 ton average load 50%	0.035	tkm	49.5	1.7325
Total Cost				0.10946491875

Usage Patterns over the lifetime of the object

Lifetime [years]	10.0
Usage per day [times/day]	1
Usage per time [hours/time]	8
Usage per week [days/week]	5
Electrical Wattage [kWatt]	0

Consumables per use of the product

Item	Cost per unit	Unit	Quantity	Total Cost / [time]
Total Cost				0.0

Disposal, Recycling and Waste Treatment

Item	Cost per unit	Unit	Quantity	Total Cost
Steel, recycling benefit	-0.288	kg	6.24	-1.79712
PE , recycling benefit	-0.677	kg	0.0	0.0
PA (nylons, polyamides), recycling benefit	-1.547	kg	4.199	-6.49585
PUR , recycling benefit	-1.05	kg	1.636	-1.7178
Paper Cardboard, Leather combustion in electrical power plant	-0.234	kg	3.0	-0.702
Aluminium, recycling benefit	-3.603	kg	7.324	-26.3884
landfill	0.118	kg	0.0	0.0
PET (Polyethylene terephthalate, recycling benefit	-0.835	kg	0.52	-0.4342
ABS, recycling benefit	-0.93	kg	0.533	-0.49569
PP , recycling benefit	-0.626	kg	1.296	-0.811296
Total Cost				-38.842356
Total Weight			24.75 kg

Phase	Total Eco Costs [Euro]	Carbon Footprint [kg CO2 equiv.]	Recipe Total [Pt]	Recipe Human Health [Pt]	Recipe Eco Tox [Pt]	Recipe Mat Repl [Pt]	Recipe Ionising Radiation [Pt]	Bees Total [mPt]	Bees Ecotoxicity [mPt]	Bees Water Intake [mPt]
Materials	36.59	126.88	0	0	0	0	0	17055	0.5241	5.9206E-08
Processing	3.4275	15.62	0	0	0	0	0	2327.2	0.01754	1.1663E-08
Transport	0.10946	0.34156	0	0	0	0	0	11.394	0.00066713	2.7284E-10
Consumption	0	0	0	0	0	0	0	0	0	0
Disposal	-38.842	-123.13	0	0	0	0	0	0	0	0
Total	1.2848	19.708	0	0	0	0	0	19394	0.54231	7.1142E-08

Scenario: Z recycled option
Last Updated: 2011-05-17 05:01:38 UTC
transport first tier to Factory 16t lorry, from second to first tier and factory/warehouse to customers 28t trucks

Materials
Processing
Transport
Usage
Consumption
Disposal
Results

Materials used in the product

Item	Cost per unit	Unit	Quantity	Total Cost
PA 6	2.073	kg	0.0	0.0
Corrugated board, recycling fibre, double wall, at plant/RER S	0.179	kg	3.0	0.537
Aluminium, production mix, at plant/RER S	2.717	kg	7.324	19.8993
A517a	0.609	kg	6.24	3.80016
Acrylonitrile-butadiene-styrene copolymer, ABS, at plant/RER S	0.642	kg	0.0	0.0
Polyurethane, flexible foam, at plant/RER S	0.88	kg	0.0	0.0
PET amorph	1.034	kg	0.0	0.0
PP	1.026	kg	0.0	0.0
PA , recycled	0.526	kg	4.199	2.20867
ABS, recycled	0.405	kg	0.533	0.215865
PP, recycled	0.4	kg	1.296	0.5184
PET, recycled	0.251	kg	0.52	0.13052
PUR, recycled	0.491	kg	1.636	0.803276
Total Cost				28.113191
Weight Adjustment		[kg]	0.0
Total Weight		[kg]	24.75

Processing Steps

Item	Cost per unit	Unit	Quantity	Total Cost
Injection moulding/RER S	0.248	kg	7.664	1.90067
Foaming, expanding/RER S	0.177	kg	0.0	0.0
Casting, brass/CH S	0.046	kg	7.324	0.336904
Rolling brass	0.0609	kg	6.24	0.380016
Powder coating, steel/RER S	1.358	m2	0.56	0.76048
Extrusion, plastic film/RER S	0.095	kg	0.52	0.0494
Total Cost				3.42747

Transport

Item	Cost per unit	Unit	Quantity	Total Cost / [1000 kg]
Truck+Trailer net 24 ton average load 50%	0.035	tkm	24.75	0.86625
Transport, van <3.5t/RER S	0.387	tkm	2.475	0.957825
Truck+Trailer net 24 ton average load 50%	0.035	tkm	24.75	0.86625
Total Cost				0.06658554375

Usage Patterns over the lifetime of the object

Lifetime [years]	10.0
Usage per day [times/day]	1
Usage per time [hours/time]	8
Usage per week [days/week]	5
Electrical Wattage [kWatt]	0

Consumables per use of the product

Item	Cost per unit	Unit	Quantity	Total Cost / [time]
Total Cost				0.0

Disposal, Recycling and Waste Treatment

Item	Cost per unit	Unit	Quantity	Total Cost
Steel, recycling benefit	-0.288	kg	6.24	-1.79712
PE , recycling benefit	-0.677	kg	0.0	0.0
PA (nylons, polyamides), recycling benefit	-1.547	kg	0.0	0.0
PUR , recycling benefit	-1.05	kg	0.0	0.0
Paper Cardboard, Leather combustion in electrical power plant	-0.234	kg	0.0	0.0
Aluminium, recycling benefit	-3.603	kg	7.324	-26.3884
landfill	0.118	kg	11.186	1.31995
Total Cost				-26.86557
Total Weight			24.75 kg

Phase	Total Eco Costs [Euro]	Carbon Footprint [kg CO2 equiv.]	Recipe Total [Pt]	Recipe Human Health [Pt]	Recipe Eco Tox [Pt]	Recipe Mat Repl [Pt]	Recipe Ionising Radiation [Pt]	Bees Total [mPt]	Bees Ecotoxicity [mPt]	Bees Water Intake [mPt]
Materials	28.113	95.385	0	0	0	0	0	14434	0.3833	6.6769E-08
Processing	3.4275	15.62	0	0	0	0	0	2327.2	0.01754	1.1663E-08
Transport	0.066586	0.23008	0	0	0	0	0	10.169	0.00044223	1.8757E-10
Consumption	0	0	0	0	0	0	0	0	0	0
Disposal	-26.866	-86.256	0	0	0	0	0	0	0	0
Total	4.7417	24.979	0	0	0	0	0	16771	0.40128	7.8619E-08

Scenario	Total Ecocosts [Euro/item]
Z Shanghai production	14.11
Z Takeback option	1.28
Z recycled option	4.74

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