Different types of nuclear power plants
The two most common types of nuclear power plants are either using a boiling water reactor(BWR) or a pressurised water reactor(PWR). They are both similar but of course they have their pros and cons. PWR reactors are very stable duo their property to produce less power when temperature increases. So a PWR is really stable to use with their power function which depends with the temperature. This functions makes the PWR really safe to have running. A negative thing about the PWR is that it is not possible to make a fast neutron reactor with this design. Because water acts like a neutron moderator. This means that it can not produce the same amount of energy that other reactors with a fast neutron moderator
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They are both similar but of course they have their pros and cons. PWR reactors are very stable duo their property to produce less power when temperature increases. So a PWR is really stable to use with their power function which depends with the temperature. This functions makes the PWR really safe to have running. A negative thing about the PWR is that it is not possible to make a fast neutron reactor with this design. Because water acts like a neutron moderator. This means that it can not produce the same amount of energy that other reactors with a fast neutron moderator can (3). BWR reactors are really good in long term, they do not have the same upkeep as for example a PWR has. It is because the pressure vessel is exposed to significantly less irradiation than a PWR is. But the cost of creating a BWR is more expensive than other types of nuclear reactors. For example, is the pressure vessel a lot bigger on a BWR but it gives around the same power (4). A really extraordinary type of nuclear reactor I want to mention is a Tokamak. That is a reactor which have a shape like a doughnut and it uses magnetic confinement what is considered the best way of containing a fusion reaction. It has magnets all around the walls which creates magnetic fields that holds the fusion reaction so nothing can escape, a sustained fusion reaction. But of course this type of reactor has it cons. The Tokamak have to be able to sustain from extreme temperature that the massive fusion reactions creates. So it is really hard to maintain a stable temperature when there is no water in the heat exchanger (5,6). To a conclusion, there are many different nuclear power plants with their different pros and cons. But today the most efficient plants are the BWR and the PWR, they are the most secure and profitable
Contrary to popular belief, nuclear power plants are unable to explode. Power plants use fuel that is thirty to ninety times too diluted to explode.
Facts, data, expert opinion: a) Low Pollution such as air pollution, water pollution - Nuclear power also has a lot fewer greenhouse emissions. It has been determined that the amount of greenhouse gases have decreased by almost half because of the prevalence in the utilization of nuclear power. Nuclear energy has the least effect on nature since it doesn’t discharge any gasses like methane and carbon dioxide b) Low Operating Costs - The cost of the uranium, which is utilized as a fuel in this process, is low. Also, even though the expense of setting up nuclear power plants is moderately high, the expense of running them is quite low. The normal life of nuclear reactor is anywhere from 40-60 years, depending on how often it is used and how it is being
However, mostly due to fear and the lack of knowledge, many are adverse to the use of nuclear power. Nuclear energy comes from two methods, fusion and fission. Fusion brings together tritium and deuterium to create heat energy, helium, and a neutron (Duke Energy, 2013). Nuclear fusion releases more heat energy than fission, however it is more difficult to control, so it is not currently a viable energy process (Duke Energy, 2013). However, the sun is an example of nuclear fusion, in how it produces heat.
The general attitude by the public towards nuclear reactors is that of fear or disapproval simply due to its name or the rumors. Nuclear reactors are merely devices that sustain chain reactions, in which only one of the emitted neutrons hits another nucleus to create fission. Though nuclear reactors cannot become a weapon or a bomb, some of the dangers relate to our lives to the extent that we may need to seek alternatives, as demonstrated by the reactors in Three Mile Island and Chernobyl. Nuclear reactors operate on chain reaction, which does not grow due to neutron multiplications of 1. They depend on slow neutrons—in explosion, they are only as powerful as TNT.
A company called the Nuclear Regulatory Commission (NRC) are constantly researching and updating their safety precautions and regulations. All of these precautions are to make sure that no human, or environmental harm will occur. This also makes it more difficult to try and work at a plant or to become a plant supervisor. There are only around 100 people who are licensed to run Water and Boiling Power Reactors, which make up almost twenty percent of the U.S energy consumption rate. To become a licensed operator you have to take specific exams for specific positions in the field that include a written exam, an operations test, and relicensing exams.
Nuclear power produces fewer carbon emissions than traditional energy sources because energy is not produced by burning molecules but splitting atoms. ‘An energy mix including nuclear power has the lowest impact on wildlife and Ecosystems’ as shown by a Conservation Biology paper. Consequently, greenhouse gas emissions have reduced by nearly half which shows the benefits and popularity of nuclear power use. Nuclear power has many environmental benefits such as small waste production, leaves no adverse effect on water, land or any habitats. By reducing fossil fuel consumption and switching to Nuclear Energy, we will sustain the environment, quality of air, improving the overall quality of
The great challenges and Engineering solutions to the problems of the 21st century Title: Nuclear fusion Author: Ashley Pinto (B00078756) Date: 28-09-2012 Introduction: In this essay I hope to talk to you about nuclear fusion. I will do this by outlining a few important aspects to take into consideration when talking about nuclear fusion.
Nuclear power plants can also be easily controlled and regulated with the right tools, and many safety precautions are taken to prevent
Nuclear Power Support or Fear The global energy demand is increasing as years go by as there is a rapid growth of population in deed of power. Due to the high demand for energy, many people are opting to replace other forms of energy with nuclear power because of its safety, reliability, and sustainability. In addition, it is one of the cleanest carbon free sources of energy available in the world today. Nuclear power is the use of continuous nuclear fission to produce electricity and heat.
Nuclear energy is one of the several alternative energy sources that have been introduced ever since. Nuclear energy’s various advantages entice many countries to start practicing it. One must consider the amount of energy generated by nuclear fuels, as they are highly-concentrated energy sources. Small uranium pellets, which are the most common form of fuel in generating nuclear energy, can generate as much electricity as a trainload full of coal does. In addition, nuclear power plants do not produce green house gases as byproducts.
Speaker Credibility Now, it’s obvious that I’m no nuclear engineer, but it has always fascinated me. Growing up very close to Turkey Point nuclear plant in Miami and having a father that worked there, I was able to see things normal people wouldn 't have seen. I got to go into the training room where they train the new reactor operators. And this interest lead me to do more research on the other sources of energy and what I found lead me to this conclusion.
Besides this, the author talks about the fact that nuclear power relies on a huge amount of investment and government subsidies. Additionally, Caldicott asserts that nuclear energy is dangerous since terrorists could easily attack reactors to disable a city;
It is true that there have been major accidents at Three Mile Island, Chernobyl and Fukushima. However those are the only accidents that have occurred in a total of 16,000 cumulative reactor years (“Safety of Nuclear Power Reactors”). The actual amount of accidents that happens are quite low. Moreover, even when those accidents happen, the radiation that you would receive would (normally) be the same or less than what you would receive from natural sources (Lynas). Thus, if those accidents happen, and it is very unlikely that they will, they will not give you any adverse effects when handled
Due to the strong gravitational pull of the Sun, Hydrogen atoms are fused together to produce Helium. However, there are no materials that can withstand such extreme temperatures without melting (Physics.ucsd.edu, 2015). This issue can be overcome by Magnetic Confinement. Magnetic confinement is the magnetic coils surrounding the doughnut shaped reactor allowing the substance in the reactor not to make contact with
The Plant consisted of four nuclear reactors, which are capable of producing one gigawatt of electric power. On April 26, 1986, the operating crew planned to test whether if the Reactor No. 4 turbine could produce enough energy to keep the coolant pumps running until the emergency diesel generator was