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Energy A look at the origins and consumption of

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Presentation on theme: "Energy A look at the origins and consumption of"— Presentation transcript:

1 Energy A look at the origins and consumption of
renewable and non-renewable forms of energy

2 Outline Non-Renewable Resources Renewable Resources
Petroleum Based Products Natural Gas Coal Renewable Resources Solar Biomass Geothermal Wind

3 660,000 gal = 1 Olympic sized Swimming pool
1 Can = 12 0z 128 oz = 1 gal 660,000 gal = 1 Olympic sized Swimming pool 1 Olympic Sized Swimming Pool = 7,040,000 Cans

4 BTU (British Thermal Unit)
The Btu is the standard unit of energy in the United States, and it is the amount of energy required to raise 1 lb. of H2O by 1 °F. An easier way to visualize one Btu is the total energy released by one match. This slide compares the unit Btu into a more relatable way to understand how much energy is being used. Both examples involve transportation fuel, or a distance traveled. I feel like the students will be able to picture a flight around the world better than a few gigabtu’s. Also can compare to how many homes would this would power annually. This is total energy released by a match not just the thermal energy (light, sound, smoke…) everything. One Trip Around the World in a Boeing 747 = 15.9 GigaBtu One Olympic Sized Swimming Pool filled with Gasoline = 75.3 GigaBtu

5 We burn a lot of matches!! As a species we consume a very large amount of energy per year. Most of that is coming from non- renewable resources like Natural Gas and Petroleum. Currently only 7% of our total energy comes from Renewable Energy. If we continue on this path we will run out of fuel very soon. This is total amount of energy used

6 Non-Renewable Resources
A non-renewable resource (also called a finite resource) is a resource that does not renew itself at a sufficient rate for sustainable economic extraction in meaningful human time-frames. Currently 93% of the US total energy comes from non-renewable resources. That’s 5.92 million flights around the world or 1.25 million Olympic-sized pools of gasoline!!

7 Petroleum-Based Products
40% of the US total energy comes from Petroleum- based products. This includes gasoline for your cars and lawn mower. That’s 2.53 million flights around the world or 563,000 Olympic sized pools of Gasoline!! Petroleum is formed when large quantities of dead organisms, usually zooplankton and algae, that are buried underneath sedimentary rock are subjected to both intense heat and pressure over long periods of time. The crude oil is harvested from the ground and processed to create various types of fuels including gasoline and diesel Many products are made from crude oil, including gas, jet fuel, and many lubricants. The different grades of gas at the gas pump are determined during crude oil processing. One barrel of crude oil (42 gallons) can be processed to all of the products seen above and many more.

8 Natural Gas 23% of the US total energy comes from Natural Gas. This is mostly used for heating and producing electricity, but some buses and 18-wheelers uses natural gas for transportation That’s 1.45 million flights around the world or 308,000 Olympic-sized pools of Gasoline!! It is formed when layers of decomposing plant and animal matter are exposed to intense heat and pressure under the surface of the Earth over millions of years Natural Gas is a naturally occurring gas that is used for heating, cooking, and electricity generation. One of the main challenges scientist focus on is the storage and transportation of natural gas. Companies need to have massive buildings in order to store this resource. If any of the students have a stove with a flame that looks like this then they use natural gas. This could also be a good time to talk about fracking?

9 Coal 23% of the US total energy comes from Coal. This is mostly used for heating and producing electricity. UGA has a coal burning plant on campus that we use to generate electricity. That’s 1.45 million flights around the world or 308,000 Olympic-sized pools of Gasoline!! Like other non-renewable resources coal is formed when dead plant matter is compressed and heated underground over a long period of time. Coal is usually pulverized and burned in a furnace with a boiler to convert water into steam which turns a turbine to generate electricity. Coal is the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide sources of CO2 release. 

10 Renewable Resources Currently only 7% of the US total energy comes from Renewable resources. That’s 413,000 flights around the world or 87,500 Olympic sized pools of Gasoline!! A renewable resource is a natural resource which replenishes to overcome resource depletion caused by usage and consumption, either through a biological process or other naturally recurring processes in a human time scale. This Human time scale is the most important factor when discussing whether or not a resource is renewable

11 Solar Currently less than 1% of the US total energy comes from Solar Energy, but that number is growing everyday. Solar energy can only provide 4,130 flights around the world or 875 Olympic sized pools of Gasoline. Solar energy is the energy from the Sun that is harvested and converted into thermal or electrical energy. Solar energy is the cleanest and most abundant renewable energy source available. The industry is currently trying to scale up the production and efficiency of solar technology, and drive down the manufacturing and installation cost. This picture shows a solar power tower, or heliostat, the mirrors reflect the suns rays to the collection tower. The mirrors are on a swivel so as the sun moves across the sky, the mirrors follow and are always focused on the tower. The heat is then used to heat water into steam to turn a turbine. This design also allows power to be generated when the sun is not shining. I wanted to include this picture to show that the suns energy can be harvested in different ways, not just the traditional solar panel.

12 Biomass Biomass is organic matter derived from living, or recently living organisms. Biomass can be used as a source of energy and it most often refers to plants or plant-based materials that are not used for food or feed, and are specifically called lignocellulosic. Corn ethanol (BioEthanol) is produced by fermenting the sugars extracted from the corn. Nearly all US ethanol production comes from corn. Since corn supply is low in Brazil; they use sugar cane as a source of sugar. When the amount of carbon being released into the atmosphere by burning a biomass energy resources is the same amount of carbon being absorbed by the plant during growth. This is what scientist call being carbon neutral. Lignocellulosic crops are crops that contain certain amounts of cellulose, hemicellulose, and lignin. Examples of these are woody structures like trees, switchgrass. This is opposed to starch and sugar heavy biomass like corn. Currently only 3.5% of the US total energy comes from biomass and Biofuels. That’s 206,000 flights around the world or 43,751 Olympic sized pools of gasoline!!

13 Geothermal Geothermal energy is heat energy generated and stored in the earth. Since the soil temperature is constant throughout the year we are able to heat our homes during the winter and cool our homes during the summer. Geothermal power is cost-effective, reliable, sustainable, and environmentally friendly, but has historically been limited to areas near tectonic plate boundaries. Geothermal power is considered to be renewable because any projected heat extraction is small compared to the Earth's heat content. Currently less than 1% of the US total energy comes from Geothermal Energy. Most is used to generate electricity or heating local homes. That’s 170,000 flights around the world or 38,800 Olympic sized pools of Gasoline!!

14 Currently less than 1% of the US total energy comes from Wind Energy.
Wind energy can only provide 12,000 flights around the world or 2,600 Olympic sized pools of Gasoline!! Wind Wind energy (or wind power) describes the process by which wind is used to generate electricity. Wind turbines convert the kinetic energy in the wind into mechanical power. A generator can convert mechanical power into electricity. This produced no greenhouse effects, consumes no water, and uses little land. Good wind sites are usually located in remote locations, far from cities where electricity is needed

15 A look into the future… If we focused on reducing our use of non-renewable resources and supported the use of renewable resources we could really change how the world looks. Conserving the environment is crucial to preserving our modern way of life. If we increased the world’s renewable energy usage from 7% to 10% we could save enough non-renewable resources to power a Boeing 747 around the world 190,000 times or fill 40,000 Olympic sized swimming pools with gasoline per year.

16 Follow up questions… What could be some effects of population growth, natural disasters, disease, and advanced technology systems on resource availability? What are some advantages and disadvantages of using renewable resources in place of non-renewable resources?


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