APES Study Guide
Unit 6A - Nonrenewable Energy
Know the following terms:
Aerobic:with oxygen
Anaerobic:without oxygen
Nonrenewable energy:an energy source that has a finite supply
Renewable energy:supplies of energy that are infinite
Cogeneration:combined heat and power(using electricity and heat to power and building or industrial process)
Fusion: the sun
Fission:splitting the nucleus of an atom(atom bomb/nuclear energy)
Meltdown:incidents that occur at nuclear reactors in which the fuel overheats and melts the core reactor
Thermal pollution:the changing of the temperature in natural bodies of water by human influence(causing oxygen levels to drop and kill wildlife in the water)
Reserves:the amount of fuel that is technically and economically feasible that remove under current conditions
Fracking:process that uses pressurized water and chemicals to fracture rock layers and release petroleum and natural gas
Anthracite:the highest concentration of carbon densest form of coal
Bituminous:a degraded potroum that forms when petroleum migrates to the surface of the earth and is modified by bacteria
Lignite:the lowest grade of coal with the lowest concentration of carbon.
Peat:partially decayed plant matter(source for coal)
Know:
Advantages and disadvantages of:
Coal:
pros:
energy dense plentiful provides heat to industrial process and electricity generation low cost mining,
efficient to transport
cons
tailings have environmental consequences
subsurface mining is dangerous and expensive
release sulfur hg pb As
Oil:Pros:
liquid from in easy to use and transport
energy dense
cleaner burning than coal
ideal fuel for mobile combustion engines
produces only 85% as much carbon dioxide as coal cons:contains sulfur and other trace metals
Natura:l pros:
gas:extensive pipeline system,
fewer impurities than coal or oil,
almost zero sulfide peroxide,
only release 60% as much carbon dioxide as coal
Cons:
methane can be released that is 25% more potent than carbon dioxide,
extraction sites cause habitat loss
, fracking can contaminate water table
,water used for fracking is contaminated instead of being used for home use
Fracking cons:
extraction sites cause habitat loss,
fracking can contaminate water table,
water used for fracking is contaminated instead of being used for home use
Nuclear: Pros: no air pollution produced,
Allows for energy independence if fossil fuels are scarce for countries,
little to no greenhouse gasses produced by power plant
Cons:
high expense to build power plant,
uncertainty of nuclear waste and storage of waste,
extremely dangerous to operate a nuclear power plant
The major energy sources used in the world today:oil
The role of fossil fuels in the production of energy: they are used to generate heat to produce steam that then produces energy.or directly used to power vehicles
Conditions needed for peat to form:water logging lack of oxygen and nutrients, high acidity with low temperature
Conditions needed for coal to form:time increasing pressure and heat
Order of grades of coal from lowest energy content to highest energy content:lignite, Subbituminous, Bituminous, Anthracite
Anthracite is the highest grade of coal and is often used for domestic heating
Which countries have the largest coal reserves:united states
Where in the U.S. there are lots of coal mines:alaska arizona colorado
Why the use of coal has been decreasing:cheaper cleaner and more efficient alternatives have presented themselves like natural gas
Conditions needed for oil to form
Dead organic material rest on the ocean floor faster than it can decay
Sediments are buried at the right depth for pressure and heat to convert the material into oil
Oil collects in limestone or sandstone covered by an impermeable layer
That oil and gas need a rock layer porous and permeable enough for the oil and gas to accumulate in order to form a deposit
Oil and gas deposits accumulate under rock layers with little to no permeability
Which region in the world has been the largest exporter of petroleum for the last 4 decades
Why oil use has increased
How fracking fluid is used to access oil and natural gas during the fracking process
A negative geologic effect in an area where fracking occurs
The fuel used in nuclear power
Why nuclear energy is considered nonrenewable
Steps necessary to generate electricity from nuclear power
Where heat is produced in a diagram of a nuclear power plant
The impact of releasing the coolant water from a nuclear power plant into the environment will have on water quality
Where radiation comes from at a power plant during a nuclear meltdown
Where high level and low radioactive waste is stored
Be able to:
Calculate percent
Calculate percent increase
Calculate the fraction of parent material remaining from radioactive decay
Calculate the half life of radioactive waste
Calculate the half life from a graph
Read a map
Read a chart
Read a graph