Life Cycle Analysis for Airbook 11" Model MC505, MC506

by: Mirjam Visser, 2011-03-04 09:23:00 UTC

Based on Apple's data from http://images.apple.com/environment/reports/docs/11inch_MacBookAir_Product_Environmental_Report.pdf. They don't say anything about the lifetime but I assumed 5 years (3 years own use and 2 years second hand). 4 hours working, 4 hours stand-by screen off, 8 hours sleep, 8 hours off per day.

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Scenario: airbook
Last Updated: 2012-03-07 10:03:01 UTC
52.84 wh per day in use presumed off on off days (5.76wh)

Materials
Processing
Transport
Usage
Consumption
Disposal
Results

Item	Cost per unit	Unit	Quantity	Total Cost
LCD module, at plant/GLO S	20.8	kg	0.14	2.912
Aluminium, production mix, at plant/RER S	2.717	kg	0.425	1.15472
Li-Ion battery laptops	13.825	kg	0.225	3.11063
Keyboard, standard version, at plant/GLO S	11.74	piece	0.5	5.87
Printed wiring board, mounted, Laptop PC mainboard, Pb containing, at plant/GLO S	98.83	kg	0.09	8.8947
Electronics for control units/RER S	10.55	kg	0.013	0.13715
PP	1.026	kg	0.02	0.02052
Steel	0.487	kg	0.035	0.017045
PS	1.328	kg	0.159	0.211152
Corrugated board, mixed fibre, single wall, at plant/RER S	0.181	kg	0.822	0.148782
Total Cost				22.476699
Weight Adjustment		[kg]	0.0
Total Weight		[kg]	1.93

Item	Cost per unit	Unit	Quantity	Total Cost
Injection moulding PVC	0.145	kg	0.179	0.025955
Deep drawing, steel, 10000 kN press, automode operation/RER S	0.062	kg	0.425	0.02635
Deep drawing, steel, 650 kN press, automode operation/RER S	0.062	kg	0.035	0.00217
Folding boxboard, FBB, at plant/RER S	0.272	kg	0.822	0.223584
Total Cost				0.278059

Item	Cost per unit	Unit	Quantity	Total Cost / [1000 kg]
Container ship	0.0052	tkm	Shanghai, China -> New York, NY, USA 11869.0	61.7189
Total Cost				0.119117477

Lifetime [years]	5.0
Usage per day [times/day]	1
Usage per time [hours/time]	16
Usage per week [days/week]	5
Electrical Wattage [kWatt]	0

Item	Cost per unit	Unit	Quantity	Total Cost / [time]
Electricity General	0.007	kwH	0.04762	0.00533344
Total Cost				6.933472

Life Cycle Analysis for Airbook 11" Model MC505, MC506

Materials used in the product

Processing Steps

Transport

Usage Patterns over the lifetime of the object

Consumables per use of the product

Disposal, Recycling and Waste Treatment

Item	Cost per unit	Unit	Quantity	Total Cost
Disposal, laptop computer, to WEEE treatment/CH S	2.1217	piece	1.0	2.1217
Aluminium, recycling benefit	-3.603	kg	0.425	-1.53128
steel and iron/RER S	0.0	kg	0.035	0.0
cardboard/RER S	0.0	kg	0.822	0.0
Total Cost				0.59042
Total Weight			1.93 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	22.477	67.857	0.94094	0.5362	0.17486	0.23002	0.00084	23506	0.61855	1.5077E-07
Processing	0.27806	1.2706	0.24306	0.058778	0.13445	0.049653	0	220	0.007773	0
Transport	0.11912	0.25198	0	0	0	0	0	0	0.00080862	2.703E-10
Consumption	6.9335	40.61	3.4488	1.4397	0.77261	1.2365	4.8975E-05	9354.7	0.031214	1.7086E-08
Disposal	0.59042	-1.6507	0	0	0	0	0	556	0.0074179	2.77E-10
Total	30.398	108.34	4.6328	2.0347	1.0819	1.5162	0.00088897	33636	0.66576	1.6841E-07