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Environmental Science: Toward a Sustainable Future Richard T. Wright
Chapter 12 Energy from Fossil Fuels PPT by Clark E. Adams
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Energy from Fossil Fuels
Energy sources and uses Exploiting crude oil Other fossil fuels Fossil fuels and energy security
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The Fossil Fuel Dilemma
Primary source of energy for transportation Supports a drill, spill, and kill legacy More sustainable alternatives are available
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Energy Sources and Uses
Harnessing energy sources: an overview Electrical power production Matching sources to uses
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Harnessing Energy Sources: An Overview
Slaves Domestic animals Wind and water Steam (ships and locomotives) Gasoline (internal combustion followed by turbine engine) Nuclear
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Energy Consumption in the United States
Sequence of use Wood Water (steam) Coal Natural gas Oil Nuclear power 3, 4, and 5 = 83.5% of U.S. energy consumption
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Global Primary Energy Supply
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Energy Consumption in the United States
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Electrical Power Production: The Beginning
Michael Faraday 1831
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Weekly Electrical Demand Cycle
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Match Dominant Primary (Left) with Secondary (Right) Energy Sources
oil-based fuels natural gas coal nuclear power transportation industrial processes space heating and cooling generation of electrical power
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Exploiting Crude Oil How fossil fuels are formed
Crude-oil reserves versus production Declining U.S. reserves and increasing importation Problems of growing U.S. dependency on foreign oil
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Crude-Oil Reserves versus Production
Estimated reserves: educated guesses about the location and size of oil or natural gas deposits Proven reserves: how much oil can be economically obtained from the oil field Production: withdrawal of oil or gas from the oil field
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How Fossil Fuels Are Formed: Part I
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How Fossil Fuels Are Formed: Part II
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Oil Production and Consumption in the United States
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Cost of Oil Imports
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Cost of Oil Imports
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Increased or Decreased since the 1970s?
Consumption of fuels derived from oil Discoveries of new oil in the United States Production of oil in the United States The gap between production and consumption United States dependence on foreign oil
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Increased or Decreased because of Higher Cost of Oil Imports?
Rate of exploratory drilling and discovery of oil Renewed production from old oil fields Efforts toward fuel conservation Consumption Development of alternative energy sources Dependence on foreign oil
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Increased or Decreased because of Collapse in Oil Prices?
Rate of exploratory drilling and discovery of oil Renewed production from old oil fields Efforts toward fuel conservation Consumption Development of alternative energy sources Dependence on foreign oil
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Consumption, Domestic Production, and Imports of Petroleum Products
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What a Barrel of Persian Gulf Oil Really Costs U.S. Consumers
$30 in initial costs + $61 for military support services = $91 per barrel of oil
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Problems from Foreign Oil Dependency
Variations in cost of purchases Threat of supply disruptions Limitations of nonrenewable resource
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Impacts of Foreign Oil Dependence
Trade imbalances Military actions Pollution of oceans Coastal oil spills
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Hubbert Curves of Oil Production
Oil production follows a bell-shaped curve and will peak around 2010.
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U.S. oil production would peak (1970s)
Hubbert Predictions U.S. oil production would peak (1970s) Dependence on OPEC oil will increase
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Who Has the Oil? Reserves North America 75.7 South and Central America 89.5 Western Europe 18.9 Former Soviet Countries 58.9 Middle East 673.6 Africa 75.4 Far East and Oceania 43.0 Total 1,033.2
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Organization of Petroleum Exporting Countries: OPEC
Algeria Indonesia Iran Iraq Kuwait Libya Nigeria Qatar Saudi Arabia United Emirates Venezuela
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Natural gas – 50-year supply Coal – 400-year supply
Other Fossil Fuels Natural gas – 50-year supply Coal – 400-year supply Oil shales and oil sands – complex extraction technologies
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U.S. Coal Deposits
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Which Fossil Fuel Ranks the Highest in the Following Categories?
Natural gas Coal Synfuels Oil shales Oil sands Air pollution Cost of extraction Proven reserves Greenhouse effect Habitat alteration Cost competition with current oil prices
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Carbon (CO2) Emission Per Capita
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Electrical Power from Burning Coal Advantages or Disadvantages?
Pollution from secondary energy source Pollution from primary energy source Habitat alterations Environmental effects of mining Conversion losses
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Primary and Secondary Effects from Burning Coal
Global Warming Acid Rain Smog Burning Coal = CO2 + SO + H20 + Ash + (CxHxSxOx) Light + Noise + Heat
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Fossil Fuels and Energy Security
Security threats Supply-side policies Demand-side policies Development of non-fossil-fuel energy sources
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Security Threats Oil dependence: relies too much on OPEC cartel and volatile Persian Gulf states Energy infrastructure: vulnerable to terrorist attacks Global climate change: greenhouse gas emissions
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Supply or Demand-side Policies?
Opening ANWAR to oil and gas exploration and production Strategies to satisfy energy needs with minimum expenditure of energy and environmental impacts
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The Potential of the Conservation Reserve
An oil field that has the potential production of 6 million barrels per day, is three times the size of the Alaskan oil field, and its exploitation will NOT adversely effect the environment.
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The Elements of the Conservation Reserve
Increasing fuel efficiency in cars (CAFÉ) Cogeneration (CHPs) Use fluorescent lights Increase home insulation
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Combined Heat and Power: Cogeneration
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Energy Efficient Lightbulbs
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End of Chapter 12
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