hzgd16 22 oct 2012 - steven zhang - quantifying environmental impacts - product life cycle
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1
Good intentions, bad results
The importance of quantifying environmental impact
Steven ZhangHangzhou Green Drinks
October 22, 2012
About me
2
The Problem
3
Product life cycle
4
Raw material extraction
Manufacture
Use
Disposal
Product life cycle
Life cycle inventory
5
Raw material extraction
Manufacture
Use
Disposal
Product life cycleInputs Outputs
Atmospheric emissions
Waterborne waste
Solid waste
Other releases
Energy
Raw materials
Life cycle impact assessment
6
Raw material
extraction
Manufacture
Use
Disposal
Product life cycle
Inputs Outputs
Atmospheric emissions
Waterborne waste
Solid waste
Other releases
Energy
Raw materials
Global Warming
Ozone depletion
Eutrophication
Carcinogenics
… … … …
Acidification
Impact categories
Life Cycle Inventory Life Cycle Impact Assessment
Life cycle analysis: the whole process
7
Raw material
extraction
Manufacture
Use
Disposal
Product life cycle
Inputs Outputs
Atmospheric emissions
Waterborne waste
Solid waste
Other releases
Energy
Raw materials
Global Warming
Ozone depletion
Human toxicity
Carcinogenics
… … … …
Acidification
Impact categories
Life Cycle Impact AssessmentLife Cycle Inventory
Acidification
Ozone depletion
Human toxicity
Global Warming
Carcinogens
1.1pts
1.0pts
3.2pts
3.0pts
0.7pts
Total: 9.0ptsNormalized
impact scores
More on product life cycle
8
System boundaries
9
UseManufacture and
Materials
Transport Disposal
Kindle 3
System boundaries
10
UseManufacture and
MaterialsTransport Disposal
10% recycled
90% landfillChargingChina to Boston
Product
Packaging
Charger
Wi-Fi/3G network
Amazon.com serversTransportation for
recycling
Inside system
boundary
Outside system
boundary
Kindle 3
Kindle 3 impact
11
Battery .05
Materials/Manufactur
e: 3.95 ReciPepoins
Use
12
LCA as part of the redesign process
13
1. Understand users and needs
3. Ideate with sustainability in mind
4. Quantify impact of new design
2. Quantify environmental impact of current product
China
14
Circular economy 循环经济
15Image source:chinacir.com.cn
16
17
How to contact me
linkedin.com/in/stevenqzhang
QQ: 2380733807
18
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