1 design for environmental impact reduction
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Design for Environmental Impact ReductionDesign for Environmental Impact Reduction
http://http://www.managementsupport.comwww.managementsupport.com
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Activity-Based Costing Disassembly Activity-Based Costing Disassembly AssessmentAssessment
In any “detailed” assessment, In any “detailed” assessment, uncertainty should be taken into uncertainty should be taken into account!account!
Other DepartmentsCosting Department
Process Department
Design Department
Equipment Information
Legal Information
Transportation Information
ABC Cost Model with Uncertainty
Shredder Information
Truck Information Fork lift Information
Assumptions
EPA Storage Requirements Recycling Revenue Reuse Revenue
Product Database
Tools
Recycling & Reuse Efficiencies
Action Chart for Each Product
Dismantling Information
Cell F415 Frequency Chart
[$/unit]
996 Trials Shown
.00
.00
.01
.02
.034
0
8.5
17
25.5
34
-9.50 -8.38 -7.25 -6.12 -5.00
Forecast: Dismantling Unit-profitability
Target Forecast: Dismantling Unit-profitability
A13 Volume [$/ft^3] -.66
No. 7 Time [sec] -.53
Microphone Pay-back Price […-.41
A311 Direct Labor [$/h] -.17
Business days per week .16
Microphone Total Volume [ft^….14
No. 19 Time [sec] -.12
Fuel Consumption intensity [… .08
Super-Duty Impact Wrench .08
Reusables Volume [ft^3] -.08
Aluminum [$/kg] .07
No. 44 Keypad RcE -.07
No. 38 Time [sec] -.07
-1 -0.5 0 0.5 1
Measured by Rank Correlation
Sensitivity Chart
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Design Design StrategiesStrategies
The following strategies are identified in the US EPA Life-The following strategies are identified in the US EPA Life-Cycle Design Guidance Manual (page 62):Cycle Design Guidance Manual (page 62): Product system life extensionProduct system life extension Material life extensionMaterial life extension Material selectionMaterial selection Reduced material intensivenessReduced material intensiveness Process managementProcess management Efficient distributionEfficient distribution Improved management practicesImproved management practices
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Optimization of Production Optimization of Production TechniquesTechniques
Alternative production techniquesAlternative production techniques Choose production techniques that require fewer harmful auxiliary Choose production techniques that require fewer harmful auxiliary
substantives or additives (e.g., water-based instead of solvent-based substantives or additives (e.g., water-based instead of solvent-based painting)painting)
Select production techniques which generate low emission (e.g., bending Select production techniques which generate low emission (e.g., bending instead of welding, joining instead of soldering, counter-sink/cascade instead of welding, joining instead of soldering, counter-sink/cascade rinsing techniques for electroplating)rinsing techniques for electroplating)
Choose processes which make the most efficient use of materials, e.g., Choose processes which make the most efficient use of materials, e.g., powdercoating instead of spray paintingpowdercoating instead of spray painting
Fewer production processesFewer production processes Results in less energy consumption and potential wasteResults in less energy consumption and potential waste Combine constituent functions in one component so that fewer processes Combine constituent functions in one component so that fewer processes
are requiredare required Preferably use materials that do not require additional surface treatmentsPreferably use materials that do not require additional surface treatments
Low/clean energy consumptionLow/clean energy consumption Motivate the production department and suppliers to make their processes Motivate the production department and suppliers to make their processes
more energy efficient (e.g., process steam can be recycled for building more energy efficient (e.g., process steam can be recycled for building heating purposes)heating purposes)
Encourage them to use renewable energy sources, or at least fossil fuels Encourage them to use renewable energy sources, or at least fossil fuels with low impact (e.g., low sulphur coal, natural gas)with low impact (e.g., low sulphur coal, natural gas)