ECE 495 - INTEGRATED SYSTEMS I

1. ECE 495 - INTEGRATED SYSTEMS I Designing for Cradle to Grave: Environmental Concerns Timothy Burg

2. The Gathering Storm - You are Competing in a World Economy 3 day delivery of new laptop!

3. Career Note – You are Competing in a World Economy • “Rising Above The Gathering Storm, Revisited - Rapidly Approaching Category 5” • Prepared for National Academy Engineering • The Academies advise the federal government on scientific and technical matters. • The 2005 report focuses on the ability of Americans to compete for jobs in the evolving global economy. • The possession of quality jobs is the foundation of a high quality life for the nation’s citizenry. • The report paints a daunting outlook for America.

4. The Gathering Storm - Manufacturing Factoids • Among manufacturers of photovoltaics, wind turbines and advanced batteries, the top ten global firms by market capitalization include two US firms. The other firms are from China, Denmark, France, Germany, India, Spain, Taiwan and the U.K. • Bethlehem Steel marked its 100th birthday by declaring bankruptcy • Hon Hai Precision Industry Co. (electronics manufacturing, Foxconn, Taiwan) employs more people than the worldwide employment of Apple, Dell, Microsoft, Intel and Sony combined.

5. The Gathering Storm – Education Factoids • When MIT put its course materials on the worldwide web, over half of the users were outside the United States • In 2000 the number of foreign students studying the physical sciences and engineering in United States graduate schools for the first time surpassed the number of United States students. • The United States ranks 20th in high school completion rate among industrialized nations and 16th in college completion rate. • China’s Tsinghua and Peking Universities are the two largest suppliers of students who receive PhD’s—in the United States Of 40 accepted applicants in ECE for Fall 2011, ~ 2 are US citizens

6. The Gathering Storm - Technology Factoids • In 2009, 51 percent of United States patents were awarded to non-United States companies. • GE has now located the majority of its R&D personnel outside the United States. • China has now replaced the United States as the world’s number one high-technology exporter.

7. The Gathering Storm - You are Competing in a World Economy • Bottom line – you must compete in a world economy. Good technical skills Good communication skills Good language skills Able to relocate and adapt Good business skills

8. Example – Without control: rivers, streams, oceans, and underground water are polluted Water Pollution Cuyahoga River Fire ‘69

9. A view of the South Pole from NASA’s “Total Ozone mapping Spectrometer” satellite. Example – Without control: industry and automobile emissions pollute the air Air Pollution

10. Example – Without control: radioactive materials can be dispersed into air, soil, and waterways Three Mile Island Disaster in Harrisburg, PA A city near the Chernobyl plant that was abandoned due to radioactive fallout. Radiation

11. Example – Without control: waste can accumulate Waste Storage

12. Example – US Government has defined minimum expectations for environmental stewardship • National Environmental Policy Act of 1970 (NEPA) • First law written that • established national framework for protecting the environment and • created an enforcer of the law -The U.S. Environmental Protection Agency (EPA) has primary responsibility • Is our basic national charter for protection of the environment NEPA All Environmental Laws & Regulations

13. Example – With control: rivers, streams, oceans and underground water can be preserved Today Cuyahoga River Fire ‘69 Cuyahoga River today

14. Example – Evaluating Environmental Impacts Electric cars are promoted as the environmentally benign future of transportation. Ads assure us of "zero emissions," and President Obama has promised a million on the road by 2015. Is it benign? Is it better than conventional car? A 2012 comprehensive life-cycle analysis in Journal of Industrial Ecology Electric Car – manufacturing produces30,000 pounds of carbon-dioxide emissions (50% of lifetime) Conventional Car – manufacturing produces 14,000 pounds of carbon-dioxide emissions (17% of lifetime). What is the start and end of the lifetime in this analysis? If a typical electric car is driven 50,000 miles over its lifetime, the huge initial emissions from its manufacture means the car will actually have put more carbon-dioxide in the atmosphere than a similar-size gasoline-powered car driven the same number of miles.

15. Generic Product Development • Environmental Impact is part of the Design: • Look ahead to the product lifecycle and find possible impacts. • Optimize design to make system as environmentally friendly as possible • Comply with regulations. Identify Need Retire Research Maintain Specifications Use by Customers Concepts Distribute and Sell Design Manufacture Prototype Testing

16. 2 - Manufacture 4 - Final Disposal 3 - Use Life Cycle Stages 1 – Raw Materials Acquisition Total environmental impact of a product is the sum of the impacts at each stage

17. Life Cycle Stage 1: Raw Materials Acquisition • Raw Materials in Electronics and Semiconductor Industry: • Metals • Plastics Acquiring the Lithium needed to manufacturethe LiIon batteries (Bolivia) Copper Mine (US)

18. Life Cycle Stage 2: Manufacturing of the product The processing of the raw materials creates pollutants both in the workplace environment and in the exterior environments, e.g. Cadmium Lead Mercury Circuit Board Cleaners

19. Life Cycle 3: Use - Distribution (Shipping)

20. What is in US landfills? • What type of trash takes up the most space in US landfills? a. plasticb. metalc. paperd. yard waste

21. Life Cycle 3: Use - Distribution (Packaging) • Dell recently announced their plan: • Cut $8 million in costs. • Eliminate 20 million pounds of packaging material

22. Life Cycle 3: Use - Consumption Vampire energy – energy used by electronic devices even though they are “off” • Wasted vampire energy accounts for over 4% of all the energy consumption in US • consumptionmeans 100 million tons of oil each year. • translates to 1% of all the energy used in the entire world.

23. Life Cycle Stage 4: Disposal/Recycle/Waste Management Disposal Of Electric Devices Has Environmental Impact • Scale of problem • We throw out about 130,000 computers each day • Americans buy more than 100 million cell phones each year • What percent of municipal solid waste (MSW) is electronics? 1-4%

24. Life Cycle Stage 4: Disposal/Recycle/Waste Management • Batteries: • May contain Cd, Pb, Hg, Ni, Li • Americans buy 3 billion dry-cells every year (each year each person discards 8 batteries) • 99 million wet-cell batteries are manufactured each year • More that 95% of car batteries are recycled – 21 lbs Pb, 3 lbs plastic, and H2SO4 per battery

25. Life Cycle Stage 4: Disposal/Recycle/Waste RecoveringMaterials from Semiconductors ‘e-waste’ has valuable copper, gold, silver, platinum and palladium as well as lead but the metals are difficult to separate

26. Environmental Goal • Foster environmentally conscious design and manufacturing • Increase purchasing and use of more environmentally sustainable electronics • Increase safe, environmentally sound reuse and recycling of used electronics

27. Environmental Friendly Design Utilize Life Cycle Analysis (LCA) Concepts to estimate environmental impact. Apply the Four Rsto mitigate environmental impact. • Remove (substitute something with less impact) • Recycle • Reuse (Re-purpose) • Reduce (Increase product life)

28. Life Cycle Analysis (Assessment) LCA • Quantifying (measuring) the Environmental Impact of a Product • Life Cycle Analysis (Assessment) LCA – Is a “cradle-to-grave” method (tool) that attempts to measure the total environmental impact for the entire life (life cycle) of a specific product • LCA takes into account the inputs (energy and raw materials), the emissions, and other important factors for the total product process - for all 4 stages of the life cycle.

29. Life Cycle Analysis (LCA) Overview Phase 2 Inventory Analysis Phase 3 Life Cycle Impact Assessment LCIA Phase 1 Goals, Definition & Scope Phase 4 Interpretation Interpret the results of the Life Cycle assessment. Consider the performance of the product by each environmental impact and the Performance Score Define the goal and purpose of a Life Cycle Assessment Develop a list of the inputs and outputs of the system • Assign each inventory item to an Environmental Impact Category; • Calculate the 12 Environmental Indices for each Environmental category; • Normalize the 12 Environmental Indices; • Sum the 12 normalized values for the Performance Score.

30. Life Cycle Analysis (Assessment) LCA Phase 2 Inventory Analysis Phase 3 Life Cycle Impact Assessment LCIA Phase 1 Goals, Definition & Scope Phase 4 Interpretation • Phase 1 Procedures • Define the Goals of the project i.e. is the life cycle assessment to be used for a single product environment assessment or for a comparison the environment of two or more products. • Determine the boundaries and the type of information needed • Define the scope of the project

31. Life Cycle Analysis LCA Phase 2 Inventory Analysis Phase 3 Life Cycle Impact Assessment LCIA Phase 1 Goals, Definition & Scope Phase 4 Interpretation • Develop a flow diagram of the processes • Develop a list identifying and quantifying the inputs and outputs for each process in the entire system Figure - Material Flow Diagram for the production of a tallow-based bar soap

32. Carbon Dioxide Methane Nitrous Oxide Global Warming Acidification Eutrophication Fossil Fuel Depletion Ammonia Indoor Air Quality Habitat Alteration Water Intake Criteria Air Pollutants Hydrocarbons Human Health Smog Halon, etc Ozone Depletion Ecological Toxicity Life Cycle Analysis LCA Phase 2 Inventory Analysis Phase 3 Life Cycle Impact Assessment LCIA Calculate ‘impact potential index’ for each impact category (example- Global Warming) by the following equation: • GWP = ∑mi x GWPi where m = mass in grams and GWPi is the factor obtained from a table similar to the BEES table below. Phase 1 Goals, Definition & Scope Phase 4 Interpretation Step 1. Assign each Inventory Item to an Environmental impact category Step 2 Calculate an Impact index for each environmental impact category

33. Life Cycle Analysis LCA Phase 3 (cont.) Phase 2 Inventory Analysis Phase 3 Life Cycle Impact Assessment LCIA Phase 1 Goals, Definition & Scope Phase 4 Interpretation Step 4. Step 4. Calculate the Environmental Performance Score (EP Score) by summing the 12 normalized impact indexes. Step 3 Normalize the 12 Environmental Impact indexes so they can be compared by a scale impact value. For example, the Global Warming normalization value is 25,582,640.09 g CO2 equivalents/year/capita.

34. LCA continuation of Phase 3 Steps 3-4 Phase 2 Inventory Analysis Phase 3 Life Cycle Impact Assessment LCIA Phase 1 Goals, Definition & Scope Phase 4 Interpretation The data can be displayed in various ways. The LCA for 5 types of floor covering is shown to the right. The 12 environmental impacts are colored-coded to provide additional detailed information.

35. Life Cycle Assessment for CFLs Example of a life cycle analysis:compact florescent lights (CFL) versus incandescent light bulbs

36. Life Cycle Assessment for CFLs • Mercury in the bulb is obviously not desirable. • However, when the entire life cycle is considered, this may not be as detrimental to the environment as first thought.

37. Life Cycle Assessment for CFLs Creates new potential environmental concerns • Manufacture Phase • Handling and storage of mercury • Distribution • Packaging contamination • Consumer Phase • Use significantly less energy than traditional light bulbs (75% less) • Clean-up of broken bulb • Ultraviolet radiation • Disposal (waste) Phase • Mercury waste • Electronic waste Addresses an important environmental concern Considering the entire product life cycle, CFL is a better choice than incandescent

38. Professional Note: Code of Electrical Engineers • IEEE Code of Electrical Engineers • We, the members of the IEEE, recognition of the importance of our technologies in affecting the quality of life throughout the world… agree: • to accept responsibility in making decisions consistent with the safety, health and welfare of the public and to disclose promptly factors that might endanger the public or the environment

39. Conclusions – Your design decisions affect us all End

40. References • EPA - Life Cycle Assessment: Principles and Practices. http://www.epa.gov/NRMRL/lcaccess/pdfs/600r06060.pdf • Must be Purchased – ISO 14040 and 14044. • Free copy of NIST BEES Computer Program - www.bfrl.nist.gov/oae/software/bees.html< • NIST Building for Environmental and Economic Sustainability (BEES) http://www.wbdg.org/tools/bees.php