Nuclear Power:
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Transcript of Nuclear Power:
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Nuclear Power:
Our Misunderstood Friend
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Overview• Growing Demand for Energy• Comparison of Nuclear with
Other Forms of Energy• Disposal of Waste• Safety of Nuclear Energy
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Growing Demand for Electricity
• Steady increase of use• How electric drive vehicles will impact
use• EGU MACT legislation will impact
demand
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Chevy Volt
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Wind• Better for the environment
because it is renewable• Generates at a capacity of 20-40%• Rate of Injury of Workers
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Solar
• Better for the environment because it is renewable
• Can only generate at a capacity of 15-30%
• Battery technology
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Nuclear vs. CoalNuclear
• About 19% of electricity generated by DTE
• Uses less than 0.00001% fuel
• High energy content• Less susceptible to
fluctuation• High initial cost
Coal• 80% of electricity
generated by DTE• Mining, transport,
burning• low energy content• Large fluctuations in
cost of fuel• High cost in fuel
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*CCGT is a type of coal powered plant
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Nuclear Power in France• 75% electricity from nuclear• 17% electricity from recycled nuclear power• Generate 3 billion euro by selling to the rest of
Europe
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Disposal of Waste
• Types of Nuclear Waste• Disposal of Nuclear waste
–Amount Generated–Repository
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Types of Waste
•Gaseous
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Types of Waste•Liquid
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Types of Waste•Solid
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Disposal of Nuclear Waste
•On Site Repository
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Disposal of Nuclear Waste in Yucca Mountain
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Chernobyl
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What Happened• Failed Experiment• Ignored Warnings• Explosion• Runaway Nuclear
Reactor
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Effects of Chernobyl• 100,000 km2 of contamination• Rise in Thyroid Cancer
– Treatment 96% Effective.– Could have been prevented.
• Liquidators and Acute Radiation Sickness– Firefighters in the Plant.
• Cancer Rates in Highly Contaminated Group– 4000 Extra Cancer Deaths among 600,000 People.
• Cancer Rates of People in Contaminated Zones– 5000 Extra Cancer Deaths among 5 Million People
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How Modern Reactors Differ From Old Soviet Reactors
• RBMK Reactor– Water Cooled– Graphite Rod Moderators– No Containment Vessel
• Light Water Reactor– Water Cooled– Water Moderated– Steel and Concrete Containment Vessel
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3 Mile Island
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Effects• Average Dose of Radiation
– 1 milirem– 1/6th radiation produced by a chest x-ray
• Maximum Dose of Radiation– Less than 100 milirem– Background Radiation 100 to 125 milirems per year
• Radioactive Isotopes– Very Low Levels Detected
• Radiation Contained– Containment vessel was not breached
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Aftermath• NRC given more control of power plants• Human Error
– Operator training improved by lessons learned.– 2 Full Time inspectors at each site.
• Design Problems– Improved controls and indicators.– Piping system revamped.
• Component Failures– Auxiliary Coolant Systems.– Automatic Shutdown.
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NUCLEAR POWER:
Our No Longer Misunderstood Friend