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Alternative source of energy
Essay for alternate source of energy
Essay for alternate source of energy
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Energy is undoubtedly one of the most important issues facing the world today. While fossil fuels may produce enough energy at a low cost, it also has severe environmental impacts on the world. Wind energy is a clean source, but is also extremely expensive to maintain. Nuclear energy may be the best energy alternative to coals and oil, with the ability to produce much more energy with relatively low cost, while also being more environmentally sound. Nuclear Power comes from the process of splitting Uranium Atoms (also called fission), which in turn releases copious amounts of energy in the form of heat. When the atoms are arranged in a reactor, the splitting of an atom will cause nearby atoms to split, forming a chain reaction. As the energy is released, it is sent through coolant tanks full of water, which is then heated into steam. The steam is channeled and used to spin a turbine, which in turn powers a generator, Following a severe earthquake and Tsunami, 3 reactors were damaged, similar to Chernobyl. However, the event was contained with minimal nuclear leaks and no deaths. The surrounding area has already been deemed safe. Despite this, many still fear events such as this. The problem is, they should not. “As a nuclear engineer, it is depressing to read the recent reports on the Fukushima nuclear incident — not because of the incident itself (at this point I strongly believe that we will remember Fukushima as evidence of how safe nuclear power is when done right) — but because the media coverage of the event has been rife with errors so glaring that I have to wonder if anyone in the world of journalism has ever taken a physics class.” (Yost, Keith. What happened at the Fukushima reactor? Mit.edu) What he is essentially saying is that the nuclear reactors were properly managed during the event, and a major incident was avoided. He believes it instead to be a testimony to the safety of nuclear
...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.
power is not the cleanest energy source. However nuclear energy is cheaper than fossil fuels, and the
On March 28, 1979, at 4:00 A.M. Eastern time, the worst accident in commercial nuclear power history happened. It was a nice day in Dauphin county, Pennsylvania, and then it all happened. This accident was rated a 5 on a scale that only goes to 7. The scale is called International Nuclear Event Scale. It all started inside the secondary-system where the pilot-operated relief valve was stuck open releasing large amounts of nuclear reactor coolant. This horrific accident caused many scientists to worry about nuclear energy, as well as concerning scientists that it could be a danger to the world, so this caused many safety concerns among activists and the general public which resulted in in new regulations for the nuclear industry, and has been cited as a contributor to the decline of a new reactor construction program that was already underway in the 1970s. Even though this sounds like it should have caused many people to develop cancerous cells, epidemiological studies analyzing the rate of cancer in and around the area since the accident, determined there was a small statistically non-significant increase in the rate and thus no causal connection linking the accident with these cancers has been substantiated. After
Nuclear energy is a very powerful source of energy. Just a little bit is required to make large amounts of electricity, which powers 1 in 5 households in the U.S. Nuclear energy has been advanced over the years and has been relied on heavily by many countries today.
Nuclear power is a very strong yet dangerous element, it has made a huge impact on our economy. Most technology now is powered by Nuclear energy. In many cases the main focus on Nuclear Energy is its advantages (pros), yet no one really pays attention to the dis advantages in Nuclear Energy (cons). But to produce electricity from Nuclear Power, the Nuclear Plant makes a chain reaction, this reaction is then created by a very heavy nuclei that are capable of nuclear fission.
(Action): If we don’t do our part to stop the expansion of nuclear power plants, the future of our planet will be bleaker. Every year, thousands of more pounds of nuclear waste will be buried underground and the damage to our environment increases. There are more efficient energy sources other than nuclear power and we must do our part today to prevent a catastrophic future for our children. The dangers that nuclear power plants pose for the United States are very real. There are many alternative renewable sources of energy available to us such as wind and solar power, which provide a much safer and efficient alternative to nuclear power. You alone have the power to speak up and act against the expansion of this dangerous energy. The future of our environment’s safety and our nation’s energy supply lies in your hands.
...nce World War II to the present day, the technology of nuclear power has increased significantly in terms of energy output and safety. The energy efficiency of nuclear power is far superior to its counterpart fossil fuel and renewable energy. Compared to fossil fuels, tiny amounts of fuel used by nuclear reactors is equivalent to a large sum of coal. This is a no brainer. Why mine a ton of coal when a little uranium can be used to gain the same amount of energy? Not only is it efficient, it’s safe to use. Used fuel is packed away in storage safely, so there isn’t any chance of radiation leaking out. In the present day, nuclear power incidents haven’t been occurring lately. Advancements in technology and equipment used have made nuclear energy a very reliable and safe source of energy. With today’s energy needs, nuclear power has the ability to keep up in the race.
Nuclear power is generated by using electricity created during a controlled fission or fusion reaction (“Nuclear Energy.” Global Issues in Context Online Collection). Nuclear fission is a process that releases energy when a nucleus in one atom is separated into two nuclei. Nuclear fusion occurs when the nuclei of two hydrogen atoms are fused together producing a larger nuclei along with energy (“Nuclear Energy.” Opposing Viewpoints Online Collection). In the 1950s, the use of nuclear power became a realistic idea for countries with nuclear capabilities and nuclear power programs (“Nuclear Energy.” Global Issues in Context Online Collection). The international nuclear program grew rapidly and by 1999 there were 436 nuclear power plants in 32 different counties. The United States, Japan, Canada, Russia, India and France remain the largest users of nuclear energy since the 1990s; however, the dependency on nuclear power varies greatly around the world because of differences in the individual nuclear power programs availability of needed resources (“Nuclear Energy.” Opposing Viewpoints Online Collection).
There is a range of safety concerns in regards to nuclear power with one of these being the effects of radiation resulting from a nuclear accident. Research shows that there is a link between exposure to radiation and the development of cancer (Zakaib 2011) whist Preston (2012) express’s concerns that people exposed to radiation may not be able to see the effects of radiation exposure for several years as was the case in Chernobyl. Furthermore, people are unable to move back into the vicinity of reactors that have been involved in an incident due to their fear of radiation as is the chase in Fukishima (Cyranoski & Brumfiel 2011) and in the areas surrounding Chernobyl (Berton 2006). Governments are increasingly becoming more stringent in the levels of radiation in which people are exposed to with this evident in Fukishma, where the Japanese government evacuated people living within a 30km radius of the plant (Evacuation Orders and Restricted Areas n.d.). As a result of nuclear accidents and the resulting radiation, support for nuclear power has diminished due to safety concerns.
Nuclear energy is produced from the splitting of millions of uranium atoms in a very interesting process called fission. This type of process is used in big power plants where there are numerous tools and machinery that help produce the energy. From generators to pumps to turbines and transformers there are up to 12 main components that all come and work together to create high amounts of electricity. The fission process is used to produce a lot of heat and steam from the reactor where uranium rods are placed. That very hot steam then travels to big turbines and spins them through the generator to generate and produce high amounts of electricity. The electricity then travels to transformers and from there it travels through land wires that run hundreds of miles into cities and towns (World Nuclear Association [WNA], 2014).
Media coverage of such cases have made the public less comfortable with the idea of moving further towards nuclear power and they only opt for reducing human activities to reduce global warming. It is true that there have been some notable disasters involving nuclear power, but compared to other power systems, nuclear power has an impressive track record. First, it is less harmful and second, it will be able to cater for the growing world population. Nuclear power produces clean energy and it delivers it at a cost that is competitive in the energy market (Patterson). According to the US Energy Information Administration, there are currently 65 such plants in the Unite States (National Research Council). They produce 19 percent of the total US energy generation.
The energy industry is beginning to change. In today’s modern world, governments across the globe are shifting their focuses from traditional sources of power, like the burning coal and oil, to the more complex and scientific nuclear power supply. This relatively new system uses powerful fuel sources and produces little to no emissions while outputting enough energy to fulfill the world’s power needs (Community Science, n.d.). But while nuclear power seems to be a perfect energy source, no power production system is without faults, and nuclear reactors are no exception, with their flaws manifesting in the form of safety. Nuclear reactors employ complex systems involving pressure and heat. If any of these systems dysfunctions, the reactor can leak or even explode releasing tons of highly radioactive elements into the environment. Anyone who works at or near a nuclear reactor is constantly in danger of being exposed to a nuclear incident similar to the ones that occurred at the Chernobyl and Fukushima Daiichi plants. These major accidents along with the unresolved problems with the design and function of nuclear reactors, as well as the economic and health issues that nuclear reactors present serve to show that nuclear energy sources are not worth the service that they provide and are too dangerous to routinely use.
To begin, nuclear power is produced by nuclear fission, which is the splitting of an atom to start a chain reaction (“11 Facts”). This chain reaction produces massive amounts of heat. Nuclear reactors take advantage of this heat by pumping water into the reactor, which in turn produces steam. The steam then becomes pressurized through a pipeline and exits into a turbine (“How do Nuclear”). The pressurized steam causes the turbine blades to spin, producing power which is linked to a generator for use in the main power lines. When the steam passes the turbine blades, it goes past cooled pipes and condensates (“How do Nuclear”). After the condensation process is finished and the steam reverts back to water, it is pumped into the reactor again, thus completing the process of producing nuclear-based power.
In the search for alternatives to fossil fuels, scientists and policy makers have focused on three options: nuclear power, energy from biomass; and a combination of wind, water, and solar power. Nuclear power, however, is much more costly and runs the risk of having it fall into the wrong hands where it could be turned into a weapon of mass destruction. The third option entails wind turbines, photovoltaic power plants and rooftop systems, concentrated solar thermal power plants,...
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.