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Energy Resources

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Claire Davis

on 6 June 2013

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Transcript of Energy Resources

By Sarah and Claire Energy Resources Biomass SWAG Coal Geothermal Geothermal is greek it comes from geo with means Earth and thermal with means heat. Hydropower Natural Gas
Petroleum Non-Renewable Renewable Renewable * Petroleum is a fossil fuel, often called crude oil or oil. It was formed from dead plants and animals sinking to the bottom of the ocean, and then being compressed by overlying rock and sediment. Biomass is anything that was once living and can be used as an energy resource. Sources from biomass include wood, biofuels, crops, garbage, and landfill gas. Provides 4% of energy. In homes people have fireplaces where they burn wood. People use fireplaces to heat their homes. Biomass can pollute the air when burned. For example, when you burn firewood. * Often found trapped in porous rocks. The largest biomass consumers are in industries. Nonrenewable Formed from the remains of plants. Coal is mostly used to produce electricity. Provides 21.3% of energy. Cons Montana was the top producer of coal in 2010. In the mid 1600s, Europeans discovered coal in the Untied States. In the mid 1600s, Europeans discovered coal in the United States. 1. When you burn it the air gets polluted. 2. Carbon dioxide is also a result of coal. * Provides 35% of energy we use Renewable * Oil has been used to light homes for ages, and is now used mostly for transportation fuel. * Cons:
-Expensive and hard to get
-Drilling and transporting of petroleum can be harmful to wildlife Generated through Earth's core. Propane Non-renewable What It Is: Propane is an energy rich gas similar to petroleum. It is called a fossil fuel, because it was formed millions of years ago from tiny remains of dead organisms. Under pressure, propane turns liquid, is usually stored in its liquid form. Propane originates in the same way as petroleum, from layers and layers of sediment compressing and melting under heat and pressure. Mainly used by industries, farms, and homes, and mainly used for heating. Provides for less the 2% of USA's energy Cons:
-Harder to find than gasoline Solar Energy The area in the world where the most geothermal energy occurs is the ring of fire. Renewable Does not harm the environment frequently. If the power plant is geothermal it does not need to transport fuel. Does not impact the United States percentage of electricity. In 1904, Italians first used geothermal energy. Hydro means water. * Solar energy is energy that comes directly from the sun. Renewable Since hydro means water hydropower is energy that comes from moving water * A solar energy collector is one way to capture solar energy and turn it into usable heat energy. The movement is a continuous cycle of water from Earth and the atmosphere. Replaced by snow and rain. *Solar collectors could be dark-colored metal plates inside
the boxes absorb sunlight and change it into heat. (Black absorbs
sunlight better than any other color.) Air or water flows through
the collectors and is warmed by the heat. The warm air or water is
distributed to the house, just as it would be with an ordinary furnace
system. Renewable Produced 17% of the world electricity. A clean energy source. Since this does not burn fuel the energy resource does not pollute the air. The fuel supply of hydopower is water there for it is clean and can be reused. In the U.S. this is the cheapest way to generate energy. Although if you do not have water you can not get energy. Nonrenewable When ancient sea plants and animals remains from scientist believe this is natural gas. Natural gas is a fossil fuel. There is a mix of gases in natural gas. This is the second largest energy supplier in the U.S. Many people use natural gas in the U.S. In homes people use natural gas for heating. You can generate energy with natural gas. Although natural gas is the cleanest fossil fuel it still releases carbon dioxide into the air. Replaced by snow and rain. *Solar energy is used mainly for heating water and for electricity * Green and environmentally friendly :) Uranium (Nuclear Energy) Sarah? Your still awake? Non-Renewable * Nuclear energy is energy in the nucleus of an atom. * Energy can be released in two ways, nuclear fusion and nuclear fission. * Provides 20% of energy in the US * Energy comes from either combining atoms, or splitting them apart. Cons:
- Nuclear waste is highly radioactive and must be kept away from humans and the enviornment Pros:
- Causes no air pollution or enviornmental pollution. Wind Energy Renewable * Wind is simply air in motion * Wind turbines use blades to capture the winds kinetic energy. It works like this:
1. The wind blows and pushes against the blades on top of the
tower, making them spin.

2. The turbine blades are connected to a low-speed drive shaft.
When the blades spin, the shaft turns. The shaft is connected to
a gearbox. The gears in the gearbox increase the speed of the
spinning motion on a high-speed drive shaft.

3. The high-speed drive shaft is connected to a generator. As the
shaft turns inside the generator, it produces electricity.

4. The electricity is sent through a cable down the turbine tower
to a transmission line. * Produces only a small amount of US energy, but is growing every year * Used to power electricity Pros:
-Causes almost no enviornmental harm and are safe and clean to use. Cons:
-Some people think they're too noisy.
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