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Published byChester Neal Modified over 9 years ago
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Everything You Need to Know About Fossil Fuels *and how to give a good energy presentation
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How Fossil Fuels Work Fossil fuels are burned to produce heat Produces CO 2 and water Greenhouse gas, plant food Also produces C, CO, NO x, SO x Toxic, acid rain, smog Catalytic converters limit this
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How Fossil Fuels Work Coal: C (s) + O 2 CO 2 + H 2 O + 25.6 kJ/g Nat’l gas: CH 4(g) + O 2 CO 2 + H 2 O + 55.5 kJ/g Gasoline: C 8 H 18(l) + O 2 CO 2 + H 2 O + 45.6 kJ/g Propane: C 3 H 8(l/g) + O 2 CO 2 + H 2 O + 50.4 kJ/g Source: Encyclopedia of Earth
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How Fossil Fuels Work Power plants Heat boils water to make steam Steam spins turbine/generator Same as in nuclear power plant Vehicles Fuel burns in cylinder Produces hot gas, which expands LNG has promise
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Availability* 82% of total US energy consumption 68% of US electricity production 42% coal, 25% nat’l gas, 1% petroleum** 95.5% of energy in Transportation Need electric cars to avoid *Source: Institute for Energy Research **Source: US Energy Information Administration
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Capacity We could provide 100% We have in the past
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Cost of Electricity Coal Total: 10 cents/kW-hr Fuel: 3 cents/kW-hr Natural Gas Total: 7 cents/kW-hr Fuel: 5 cents/kW-hr Source: Institute for Energy Research
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Renewability Fossil fuels are not renewable Coal: 150-400 yr US has 27% of world supply Russia (18%) and Canada (13%) Source: Institute for Energy Research, Wikipedia Oil: 45-150 yr Physics/ucsd.edu, wikipedia Nat’l Gas: 60-170 yr Wikipedia
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Independence In 2011, 45 percent of US was imported Canada Mexico Saudi Arabia Venezuela Nigeria. Source: Energy Information Administration Domestic supplies could increase with technology Fracking, shale oil, oil sands
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Environmental Impact Emissions CO 2 (last IPCC says 99% cause of AGW) NOx, SOx Particulate Heavy metal VOC’s Oil spills Drilling, transportation, refining Mining issues
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New Technologies Fracking may increase our NG supply tremendously Environmental concerns New domestic sources of petroleum Shale oil Tar sands
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Quote of the Day “The stone age didn’t end for lack of stone … … and the oil age will end long before the world runs out of oil.” 70’s Saudi oil minister
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Opinion No choice soon enough Economics a big pos. But we’re rich enough to move on Environmental impact big neg. Develop alt energy for job growth Energy independence undervalued Petroleum is undervalued as chemical source
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References (1) Encyclopedia of Earth http://www.eoearth.org/article/Heat_of_co mbustion?topic=49557 http://www.eoearth.org/article/Heat_of_co mbustion?topic=49557 (2) Institute for Energy Research http://www.instituteforenergyresearch.org/ energy-overview/fossil-fuels/ http://www.instituteforenergyresearch.org/ energy-overview/fossil-fuels/ (3) US Energy Information Administration http://www.eia.gov/tools/faqs/faq.cfm?id= 427&t=3 http://www.eia.gov/tools/faqs/faq.cfm?id= 427&t=3
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