Natural Resources by Cp9jfD

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									Natural Resources

   Mr. Blackwood
                   Outline
• Define Natural Resource
  –   Renewable Resource
  –   Fossil Fuel
  –   Nuclear
  –   Hydroelectric
  –   Solar Energy
  –   Wind
  –   Geothermal
  –   Biomass
               Definitions
• Natural Resource
  – anything people use
• Renewable Resource
  – natural resource that can be replaced in
    nature
• Nonrenewable Resource
  – resource that exists in a fixed amount
  Where does most of our
energy come from right now?
                Examples
• Oil
• Coal
• Natural Gas
                  Products
•   Gasoline
•   Diesel Fuel
•   Jet Fuel
•   Gases
•   Asphalt
                    Nuclear
• Basically heats water
  – Source of energy to heat water is the splitting of a
    uranium atoms
  – Nuclear fission
  – The Uranium is the fuel
  – Bombarded with thermal neutrons
  – Split nucleus
  – Makes two new atoms of lighter mass
  – Releases heat that is transferred to the water
            Hydroelectric
• Transfer of energy
  from movement of
  water to a turbine
• Turbine spins
  generator
• Generator produces
  electricity
            Solar Energy
• Sandwich of silicon and other materials
  that convert energy into light
  – Sun strikes the cell
  – Electrons move from the lower to upper
    layer producing an electric current
  – Expensive
                 Geothermal
• Energy produced within
  the Earth’s Crust
• Comes from
  underground water that
  has energy in the form
  of heat transferred to
  the water
• Water is pumped from
  well to power plant
• Can use different fluids
  to heat houses too very
  cool
                     Wind
• Transfer energy from
  wind to turbine blade
  spins generator and we
  get electricity
   – Not steady
• Not ready to supply
  base load and we have
  problems storing
  elelctricty
• Need to rebuild
  electrical power
  distribution system
                      Biomass
• Biomass is organic matter
  –   Plant and animal waste
  –   Example Bark Beetle Trees
  –   Bad epidemic cut trees down make electricity
  –   Waste oil from cooking
       • Diesel
       • Reform in to a synthesis gas
  – Energy is stored in the chemical bonds
Bio-fuels
Prototype
System to Generator
Prototype 2

								
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