Lecture_03_26.ppt - ME 553: Product and Process Design...

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ME 553: Product and Process Design Life Cycle Thinking and Environmentally Sustainable Product Design Fu Zhao, Ph.D. Assistant Professor Mechanical Engineering & Environmental and Ecological Engineering Purdue University March 24th, 2009 Environmental Issues Global Warming/Climate Change Fresh Water Shortages and Water Pollution Air Pollution Smog Acid Rain Ozone Depletion World Population Growth World Hunger Endangered Species and Biodiversity Loss Desertification Hormone/Endocrine Disruptors Shrinking Wetlands Nuclear Power and Nuclear Waste Forest Destruction/Deforestation Toxic Chemicals … . .. Who caused the problems? Where are we going?
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Ecological Footprint http://www earthday net/footprint/flash htm New version, US and Australia only http://www.earthday.net/footprint/flash.html Old version, many countries http://www.myfootprint.org/en/visitor_information/ Fu Zhao, Guest Lecture, ME553: Product and Process Design Purdue University, March 24th, 2009. World average 2.7 gha Biocapacity 2.1 gha Living Planet Report, WWF–World Wide Fund For Nature, 2008
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The Global Village Represented as 100 People 47 Villagers live on <$2/day. 27 villagers do not have electricity. 17 Villagers do not have safe drinking water. 40 Villagers do not have adequate sanitation 40 Villagers do not have adequate sanitation. 20 Villagers possess 86% of the wealth. 5 Villagers possess 25% of the wealth. 11 Villagers have Internet. 1 Villager is college educated. Ecological Footprint vs. Quality of Life? www.gumption.org/2002/village/village.htm Fu Zhao, Guest Lecture, ME553: Product and Process Design Purdue University, March 24th, 2009. Where are we going? http://www.gapminder.org/ Fu Zhao, Guest Lecture, ME553: Product and Process Design Purdue University, March 24th, 2009.
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Fu Zhao, Guest Lecture, ME553: Product and Process Design Purdue University, March 24th, 2009. Whose Problem is This? Everybody ! What could we do as Engineers? Fu Zhao, Guest Lecture, ME553: Product and Process Design Purdue University, March 24th, 2009.
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Technology and Environment The IPAT Equation I = P·A·T Environmental impact (I): resource depletion or waste accumulation; Environmental impact (I): resource depletion or waste accumulation; Population (P): the size of the human population; Affluence (A): the level of consumption by that population; Technology (T): the processes used to obtain resources and transform Technology (T): the processes used to obtain resources and transform them into useful goods and wastes. GDP capita per of unit Impact tal Environmen x Person GDP x Population = Impact tal Environmen “Master Equation” Fu Zhao, Guest Lecture, ME553: Product and Process Design Purdue University, March 24th, 2009. As engineers, it is our choices that will ultimately decide the environmental impact factor that gets multiplied by consumer choice.
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This note was uploaded on 07/09/2010 for the course ME ME553 taught by Professor Ramahni during the Spring '09 term at Purdue University Calumet.

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Lecture_03_26.ppt - ME 553: Product and Process Design...

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