Energy Resources Flashcards
the capacity of a physical system to perform work.exists in several forms such as heat, kinetic or mechanical energy, light, potential energy, electrical, or other forms.
Energy
2 sources of enegery
Conventional Energy Sources/Non-renewable Resources
Non-Conventional/Renewable Energy resources
The energy sources that once exhausted, do not replenish themselves within a specific period
Conventional energy/non-renewable
are made from decomposing plants and animals. These fuels are found in the Earth’s crust and contain carbon and hydrogen, which can be burned for energy.
Fossil fuel
a type of fossile fuel that is black or brownish-black sedimentary rock that can be burned for fuel and used to generate electricity.
It is composed mostly of carbon and hydrocarbons, which contain energy that can be released through combustion (burning)
Coal
they have been formed from the fossilized remains of prehistoric plants and animals.
• Fossil fuels still account for more than 30% of global energy production
60% of energy supply of our nation came from fossil fuels.
Fossil fuel
store massive amounts of carbon many meters underground.
Pean accumulation of partly decayed vegetation that has gone through a small amount of carbonization
not a coal but can eventually transform into coal under the right circumstances
Peat
lowest rank of coal. It has carbonized past the point of being peat but contains low amounts of energy-its carbon content is about 25-35%.
about 250 million years old.
Lignite is mainly combusted and used to generate
Lignite
about 100 million years old. It contains more carbon than lignite, about 35-45%. mainly used as fuel for generating electricity.
Sub bituminous coal
is formed under more heat and pressure and is 100 million to 300 million years old. It is named after the sticky, tar-like substance
called bitumen that is also found in petroleum. It contains about 45-86% 26 carbon.
Bituminous coal
is the highest rank of coal. It has the most amount of carbon, up to 97%, and therefore contains the most energy.
It is harder, denser, and more lustrous than other types of coal.
Almost all the water and carbon dioxide have been expelled, and it does not contain the soft or fibrous sections found in bituminous coal or lignite.
Anthracite
has to be drilled for because it is usually located deep below the earth’s surface and is then ref ned to produce a number of different products including gasoline, heavy fuel oil and diesel fuel.
Petroleum
Fossil Fuel, formed similarly oil, found in petroleum.
Removed from Earth by drilling, the pressure is usually sufficient to allow it flow to the surface.
Colorless, odorless gas with a simple chemical structure (CH4)
24% of the world’s energy is derived by burning natural gas.
Natural gas
Fuel that is easily stored in pressurized tanks.
Used as fuel for cooking, transportation.
Also, a by-product of oil refining.
Burns cleaner than gasoline or diesel
Natural gas/propane
natural energy which does not have a limited supply. can be used again and again and will never run out
comes from natural resources such as sunlight, wind, rain, tides and geothermal heat, which are renewable (naturally replenished.)
Use as an altemative to fossil fuels and nuclear power, and was commonly called alternative energy
Non-conventional/renewable energy
