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Why is renewable energy important essay
Importance of renewable energy sources
Why is renewable energy important essay
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Thermochemical Water Splitting as a Means for a Clean Energy Source Introduction Since the beginning of the Industrial Revolution fossil fuels and oil have been our main sources of energy, and until recently that has been acceptable. After the oil crisis in the 1970’s, people began to grow concerned about the future state of our energy supplies. That culminating concern combined with the new concern of human initiated alteration of the atmospheric composition, encouraged scientists to try and come up with a new source of clean fuel that produced no emissions. Thermochemical Water Splitting was first conceptualized in the mid 1960’s1. At the time is wasn’t necessary because oil was so cheap there was no need for an alternative, so it faded away. The hunt for clean energy source led to a revitalization of the thermochemical water splitting system. A system that if fully developed, could efficiently produce hydrogen and oxygen fuel without the harmful emissions of gasoline and coal2. Thermochemical Water Splitting Thermochemical water splitting is the process of converting water into hydrogen and oxygen through a series of chemical reactions initiated by extreme heat3. This can be done using either nuclear power or concentrated solar power as the heat source. The nuclear method uses the heat generated from a nuclear reactor to start the chemical reactions. There is a large number of slightly different nuclear methods being used, but the most popular nuclear method is the Sulfur-Iodine (SI) cycle2. The SI cycle is made up of three chemical reactions that result in the dissociation of water molecules. Direct thermolysis of water requires temperatures exceeding 2500 degrees Celsius3, but the nuclear thermochemical systems can accom... ... middle of paper ... ...00663 3. https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CDEQFjAB&url=http%3A%2F%2Fwww.researchgate.net%2Fpublication%2F228685818_Nuclear_production_of_hydrogen_using_thermochemical_water-splitting_cycles%2Ffile%2F50463522e0151bd3b3.pdf&ei=kgxsU--hLs_3oAS6joCICQ&usg=AFQjCNHQrLaY9mrOO353NO2HIhaxgsq-FQ&sig2=j0XAxElnPs2JnzUHPHJ6KQ&bvm=bv.66330100,d.cGU 4. http://www.promes.cnrs.fr/index.php?page=thermochemical-water-splitting-cycles 5. http://ac.els-cdn.com/S0301421507004934/1-s2.0-S0301421507004934-main.pdf?_tid=5ed37a66-d708-11e3-a8b5-00000aacb361&acdnat=1399591850_5a345c41f505fddf96ab67a63f3394fa 6. http://www.synapse-energy.com/Downloads/SynapsePaper.2008-07.0.Nuclear-Plant-Construction-Costs.A0022.pdf 7. http://www.eia.gov/tools/faqs/faq.cfm?id=207&t=3 8. http://www.sciencedirect.com/science/article/pii/S036031990100177X
...ed the water begins to boil and steam is produced. When the steam is produced is moved up towards the reactor opening, as it moves up the steam passes through turbines that spin creating energy. The turbines begin to move which is what produces the energy. During this process a lot of steam is produced which is why so much power is created.
Semantically fossil fuels are a renewable source of energy, however given that it takes millions of years for the organic materials to be broken down and converted, it is wholly unrealistic to consider them as renewable. As the demand for fossil fuels increases and source diminish faster than they are replentished, the United States must work towards a renewable energy independent state using truly renable sources, both technically and in practice. With changes in the home, as consumers in buying goods and with alternative fuel sources backed by public trust and governmental involvement, the United States could drastically lessen its dependence on fossil fuels, foreign and domestic.
Fossil fuels, such as coal and oil, are Carbon rich compounds, the combustion of which produces Carbon Dioxide, a pollutant and a greenhouse gas. A large amount of energy is released during this process, which is why the pollutants off products are tolerated. This process occurs constantly throughout the world, in power stations, vehicles and cooking ovens, leading to an immense volume of CO2 being released every second, 50% of which is absorbed by oceans (Oce...
Nuclear power is generated through a process known as nuclear fission which occurs when the uranium molecules are placed in the water. This process causes the water to heat up to boiling point and generates steam, from there it operates like most other power plants by using the steam to turn turbines and create energy. Stea...
From the home to factories, families and industries are reliant on the use of nonrenewable fossil fuels to feed the needs of the everyday human. Fossil fuels are the main source of energy over clean, renewable sources such as the use of wind, solar energy, and water to power our homes, schools, and industries. In fact, about 85% of energy use comes from fossils fuels. The main reason being that using fossil fuels is cheaper than wind and solar energy. “For nearly two centuries, fossil fuels have been the cheapest source of energy” and widely abundant (Marburger, A global framework: international aspects of climate change). However, overtime fossil fuels will disappear due to the lack of time to replenish itself with the human races rapid use of it. Despite its current status of availability, there are many controversial issue in using fossil fuels; the most prominent issue being that it is the cause of rapid climate
The U.S. may be in trouble when it comes to oil, but there are ways we can solve this problem. One way is to try to find alternative energy sources. We should research hydro-electric power, nuclear power, solar power, wind power or other possibilities. With an alternative energy source, we would not have to cut out oil completely, but we would n...
Our nation is on the brink of an energy crisis and alternative means to produce
On April 20, 2010, the Deepwater Horizon oil drill exploded; thirteen people were killed and many were injured. 206 million gallons of oil was dumped into the Gulf of Mexico. This event attracted many new supporters of alternative energy (Issitt & Warhol). Alternative energy refers to any energy source other than fossil fuels. Fossil fuels are materials including natural gas, coal, and oil; they are cheap to produce, easy to distribute, and provide most of the electricity used in the world’s technology. However, they are nonrenewable, cause many harmful environmental effects, and take millions of years to create. Thus, many modern energy companies are researching new ways to develop alternative fuel sources (Issitt
The year is 2200. The world is going through a fossil fuel shortage. Oil reserves are almost completely consumed and it is becoming impossible to find new fossil fuel sources. Not prepared for this event to occur, The United States, has no alternative options. As a result of the oil shortage, the standard of living deteriorates. Heat in homes, supermarkets full of food, and transportation, all basic necessities taken for granted, will be depleted because fossil fuels are used to power almost everything. The key to the prevention of this future is renewable energy. Unfortunately the support for the use of renewable energy is weak and ineffective. Unless the US puts forth effort to research and promote the use of renewable energy to consumers, conversion from fossil fuels to renewable energy will no longer be an option.
There is only so much oil in the world though and when that is gone we need to look for alternative sources of energy. Sources like ethanol produced from Switchgrass.
Geothermal energy is one of the oldest sources of energy. It is simply using and reusing (reusable energy) heat from the inside of the earth. Most of the geothermal energy comes from magma, molten or partially molten rock. Which is why most geothermal resources come from regions where there are active volcanoes. Hot springs, geysers, pools of boiling mud, and fumaroles are the most easily exploited sources. The ancient Romans used hot springs to heat baths and homes, and similar uses are still found in Iceland, Turkey, and Japan. The true source of geothermal energy is believed to come from radioactive decay occurring deep within the earth.
Hot Water Heaters: The easiest way to exploit solar radiation is as thermal energy. One way to harness this solar energy is to heat water. Aro...
Nuclear energy is generated by a process called fission. Fission occurs within the reactor of a nuclear power plant when a neutron is fired at an atom of uranium causing it to split and release subsequent neutrons.1 These are able to crash into other uranium atoms causing a chain reaction and releasing a great deal of heat energy.
The world that we live into today affords us the expectation that the flip a switch will turn the lights on. As populations increase and developing nations undergo dramatic economic growth, this energy demand will only continue to grow. The International Energy Agency (IEA) believes that “the world’s energy needs could be 50% higher in 2030 than they are today” (ElBaradei). Given this projected growth, it is necessary for world leaders must take action to secure the energy supply. Meaning that world leaders need to start seriously considering an alternative to non-renewable energy sources. “In 2012, the United States generated about 4,054 billion kilowatt-hours of electricity. About 68% of the electricity generated was from fossil fuel (coal, natural gas, and petroleum), with 37% attributed from coal” (U.S. Energy Information Administration). The fossil fuels that are used to supply over half of our country’s energy are in finite supply and are increasing in price to astronomical heights.
Fuels like coal, and oil that once were a fine innovation in creating energy are now rapidly deleting and one day will be gone forever; energy that won’t last is often referred to as non-renewable energy. Besides being set up to fail and become inefficient in the future, fossil fuel energy is not clean to use and poses several environmental complications. Coal, for instance is “the dirtiest of all fossil fuels. Coal combustion not only produces sulfur oxides and nitrogen oxides that contribute to acid rain and snow, it generates millions of tons of particulates that cause asthma and other respiratory diseases.” As with all usage of fossil fuels, it creates enormous amounts of carbon dioxide, which contributes to greenhouse gas. Not only are fossil fuels dirty, they also pose as a security risk and unforgiving on the American wallet. (Saini)