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19 Cards in this Set
- Front
- Back
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Name 2 inputs to a products life-cycle |
Raw material Energy |
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Name 4 output from a products life-cycle |
Atmospheric Emissions Water borne wastes Solid wastes Co products |
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Name 2 physical outputs from the LCA |
Changes to production processe or logistics Changes to comparison or packaging |
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Name one intangible output from the LCA which is important for a manufacturing company. |
Understanding how much your process contributes to the total life cycle |
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Name the 4 steps of the LCA |
1.Goal and Scope definition 2.Inventory Analysis 3.Impact Assessment 4.Interpretation |
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Give an example of a System function + secondary function. |
SF: Soap is getting you clean 2SF: Soap smellas got |
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What is Functional unit, explain and include an example? |
Based on the system function. It should reflect 3 characteristics: Quantity, Quality and Durability. Ex: 1 m2 paint during 5 years. |
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What is reference flow, give an example! |
Provide the basics products quantities needed per FU / scenario. |
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What should a system boundary include? |
Everything in the economy which contributes to the system function. |
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Give an example of a Unit process |
A paper mill |
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Give 2 example of a Elementary inflow to a paper mill. |
Energy Wood |
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What do you do in step 2- Inventory analysis? |
Analys the elementary flows associated with the life cycle of the product system that generetes the reference flow are quantified. |
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Which 4 datas is included in the Inventory analysis? |
Process data Collector data Source and collection data Flow data |
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Name 3 difficulties with Inventory analysis |
Which process should be included Are the data reliable and robust? How should the recycling be handled? Allocation of elementary flows if a process have more than one product. |
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What is the meaning of step 3 - Impact Assessment? |
To understand and evaluate the magnitude and signification of the potential environmental impact of a product system. |
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Explain the Impact Pathway with an example |
SO2 emissions ->Acid rain->Acidified lake->Dead fish->Loss of biodiversity |
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What are the meaning of the fourth step - Interepation. What are yo doing in this step? |
To evaluate the assumption, results and choices made in terms of robustness. You draw conclusions and make recommendations. You analyse step 2 and 3 against the goal and scope def. |
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Name 3 pros with LCA |
Support decision to select the product thats results in the least impact of the environment. Defined steps Considers the whole life cycle + product system |
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Name 2 cons with LCA |
Gathering the data needed can be hard Many simplifications are required, hard to make that. |
