Transcript Natural Resources

Natural Resources
Mr. Blackwood
Outline
• Define Natural Resource
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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
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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
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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