Energy Resources & Environmental Implications

Energy Resources & Environmental Implications -...

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1 Energy Resources and Environmental Implications Sections 8-1 and 8-2 in Davis and Masten The purpose here is to briefly introduce concepts of  how and where we get our energy, and how our  extraction and use of energy affects our environment Material will be given that is not in Davis and Masten  and not all material in Section s 8-1 and 8-2 will be  covered – details will be given in lecture  Some slides are taken from a presentation given by  UI and ISU faculty to the Board of Regents entitled  “Renewable Motor Fuels” and from a lecture by Prof.  Jerry Schnoor on gulf hypoxia
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2 Energy Sources, Usage, and Efficiency – Why do we  care? Economic development  Quality of life Water/Soil/Air pollution Global climate change Intergenerational equity Social justice Current dilemma (trade-offs):   Energy Security vs Environmental Impact vs Cost vs Efficiency    
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3 Energy, Poverty, and Sustainable Development # of people in  economic class Annual income  or GDP per  capita Energy use per  capita,  GJ/cap-yr Ecological  Footprint,  ac/cap 1 billion <  $365  Abject Poverty ~5 (biomass and  animal waste) < 1 acre/capita 1 billion <$1,000  Very low income ~10 1 acre/capita 3 billion $3,000 GDP/cap    Developing ~30 3 acres/capita 1 billion $20,000 GDP/ca  Developed ~150 12 acres/capita 0.3 billion (U.S.) $37,500 GDP/ca Developed ~300 24 acres/capita Global Average (6.4 billion total)    $8,000 ~60 5.7 ac/cap (4.5  acres available)
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4 Fuel vs Food vs Feed – Part 1 ( balance of trade )
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5 Energy Balance Total flux = 1.17 x 10 31  kJ/yr 1 BTU = 1.055 J 1 W = 1 J/s
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6 World Energy Consumption EJ = 10 18  J
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7 U.S. Energy Consumption Per capita consumption Total consumption
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This note was uploaded on 06/03/2011 for the course 53 50 taught by Professor Parkin during the Spring '11 term at University of Iowa.

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Energy Resources & Environmental Implications -...

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