Case-Study-Intermediary-Presentation-Template-chapter 2.pptx

example of LCA analysis and characterization of hand drying

1. Case study – intermediary presentation Olivier Jolliet, PhD

2. Case study: screening analysis and intermediary presentation General case study aim: Compare the environmental impacts of two or more product or service alternatives. Identify most influential parameters and possible improvements. Case study topic are selected upon proposal of participants. Phase 1: goal definition and hand calculation of energy and CO 2 Steps and deliverables phase 1 GA1a: Fill in and submit the Function, functional unit and process tree template (until slide 9 below) GA1b: Perform the energy and CO2 balance, and a sensitivity study using the template and prepare draft of presentation slides posted before presentation (until slide 15 below) GA1c: Upload updated filled slides/templates, accounting for received comments Objective phase 1 Define goal and scope (function, functional unit, reference flow, process tree and system boundaries) what are the main processes contributing to the energy consumed and CO 2 emitted. Identify one important use/transport parameter for sensitivity study + one parameter to obtain first hand data Identify the main processes contributing to the energy consumed and CO2 emitted

3. Needs and objectives Context and needs: Objective: Compare the environmental impacts of xxx A. xxx B. xxx Introduction: case study description and objective, rationale, Give just enough information on introduction so that the listener understands the needs and your goal definition

4. Function Product A Product B PRODUCTS MAIN FUNCTION SECONDARY FUNCTION & OTHER PERFORMANCES xxx xxx Define the main and possible scenario specific secondary functions.

5. Reference flows and key environmental parameters Write down the selected (number of) functional unit For each scenario, list the reference flows corresponding to the selected functional unit. Do provide for each reference flow the QUANTITY used per functional unit. Then add key parameters that affect the reference flows PRODUCTS OR SYSTEM REFERENCE FLOWS (what is purchased) KEY ENVIRONMENTAL PARAMETERS (linking reference flows to functional unit) FUNCTIONAL UNIT (service offered) Product A Product B XXX FU XXX aaa XXX bbb XXX cccc YYY 1 YYY 2 YYY 3 XXX aaa XXX bbb XXX cccc

6. Main hypotheses and data used Summarize your main hypotheses (transport distances, number of use, etc. and data in one slide)

7. Process tree design 1 2 3 4 Start from reference flows needed to be purchased per functional unit. Draw one box per reference flow . Follow the upstream and downstream intermediary flows until you reach processes further (likely to be) covered by an LCA database. Design the process tree. For each unit process, document in each box, the amount needed per FU.

8. Process Tree: A xxx xxx XXX FU xxx xxx Develop your process tree until you reach processes available in databases: see example light bulb on next slide

9. Process Tree: B (example from course) Paper packaging 50g to recycling Electricity 300 kWh Paper packaging 50g Energy 1.9 MJprimary Aluminum to landfill 75g Glass to landfill 100g Tungsten to landfill 3.5g Illumination 800 lumen During 5000 h 5 Incandescent bulbs Transportation Truck 3200 km 731 kg∙km Transportation Oceanic freight 10,000 km 2,285 kg∙km Aluminum 75g Glass 100g Tungsten 3.5g Develop your process tree until you reach processes available in databases Submit your slides as GA1a (for the intermediary presentation itself you might have the process tree and the energy balance grouped together for each scenario)

10. Energy and CO 2 balance: A Adapt excel template Energy and CO2 balance hands drying - answerkeys 1a.xlsx. Look for data for MJ/unit and gCO2/unit in Energy and CO2 balance hands drying - answerkeys 1a.xlsx

11. Energy and CO 2 balance: B Adapt excel template from Energy and CO2 balance hands drying - answerkeys 1a.xlsx

12. Comparison of energy and CO2 balance across scenarios Create two stacked bar graphs one for Energy, one for CO 2 one stacked bar per scenario on each graph

13. Interpretation – sensitivity study Identify which main use parameter affect your results and the ranking between scenario (e.g. number of use, lifetime, frequency of a give operation, transport distances). Create a sensitivity graph showing how your total energy and CO 2 varies as a function of this parameter. Cumulative graphs usually easier to apprehend, than the graph per FU shown here.

14. Key parameter: collection of primary data Identify one key data or parameter for which it would be useful to get better primary data. Propose an approach to obtain these data (small survey, systematic literature search, industry contact).

15. Conclusion and next steps Final slides on main conclusions and next steps

16. Evaluation criteria - intermediary presentation

17. Case study phase 1: summary of complementary instructions & material Intermediary Presentation Template Example Intermediary Presentation Final Presentation Template Example 1 Abstract - Wall paint & Wallpaper Example 2 Abstract - Stovetop and Gas Grill Abstract Template