Essay on Nuclear Energy Nuclear Energy Essay Nuclear Energy Pros And Cons Nuclear Essay What is Nuclear Power? Essays Nuclear Energy Essay

1. Essay on Nuclear Energy
Nuclear energy
Nuclear Power and its uses is a growing discussion in today's era of technology. Australia is one of
the developed countries where the demands of energy resources are increasing rapidly. Nuclear
energy is coming up as a great alternative, but various factors support as well as oppose its growth.
Some countries oppose the usage of nuclear energy because of the problems associated with its
usage. Production and Maintenance of nuclear power is very expensive. Nuclear power is viewed as
too dangerous, uneconomical, and not required. Although, nuclear energy has a potential hazard, but
it is reliable in terms of efficiency, environmental impact and cost when compared with other sources
of energy. Therefore, the increase in the...show more content...
Though renewable sources of energy are reliable but their output greatly depends on the
environment. For example, cloudy days have no solar gain, hence no solar energy production. Quiet
days mean no wind blows to drive wind turbines. Dams are primarily for flood control, so
hydroelectricity production varies as dam water levels fluctuate.
Considering the case of Aswan Dam in Egypt not only caused thousands to loose their homes and
lives but also ceased the fertile surrounding because of the yearly inundation of the Nile. Moreover,
the subsequent silting up for the river destroyed much wildlife.
Due to Thermal Power Generation, 2500 million tons of coal each year is consumed to produce
38% of the electricity, While 61,000 tons of Natural Uranium will be used to generate the same
amount of energy (World Nuclear Association, 2005) .
Secondly, nuclear energy source has a weak impact on environment than the Non–renewable
resources. There is no doubt that use of fossil fuels leads to global warming. While, the amount of
carbon dioxide in the atmosphere was only 0.028% five decades ago, now, as per American
Petroleum Institute (1998) estimates it reached 0.036%. Additionally, burning of fossil fuels,
especially coal, oil, and natural gases are the main causes for increase in pollution; especially air
pollution. Several hazardous pollutants are produced by fossil fuels combustion: Carbon Monoxide,
Nitrogen Oxides, Sulphur Oxides and
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2. Nuclear Energy Essay
The discovery of nuclear energy began in the 1980's with Rontgen's discovery of the X–Ray soon
after scientists unraveled the structure of the atom and made the discovery that all atoms have
neutrons and protons. The last major component o the atom was discovered in 1932 the neutron.
Another important discovery was made in 1938 Germany; the Germans were the first to carry out
the fission of uranium atoms. The energy that fission created opened the possibility of two things,
powerful weapons, and energy for civilian use. Nuclear reactors control, and produce energy from
the splitting of atoms of certain substances. In a nuclear reactor the energy produced is released as
heat and the heat is used to make steam which in turn is used to...show more content...
When used as an energy source fusion has some advantages over fission, like the light nuclei use
in the process of fusion are plentiful, and easily obtained. Also the end products of fission are
light, stable nuclei, while the end products of fission are normally heavy and highly radioactive.
There are two categories that nuclear energy is researched for, military and medical. The main
result of military research is the nuclear bomb; there are two types of nuclear bomb the atomic,
and hydrogen bomb. The atomic bomb involves fission, and the hydrogen bomb involves fusion.
Some of the results of the medical research are nuclear medicine. Nuclear medicine involves using
small pieces of radioactive material to diagnose and treat various diseases. Some diseases that it
treats are many types of cancer, heart disease, and various other abnormalities within the body.
Nuclear in this time and age is also the perfect replacement for fossil fuels. The only problem with
nuclear energy is even thou it creates massive amounts of energy it still relies on uranium and
platinum which even thou plentiful it is still in limited supply. Nuclear power is a great short term
replacement for fossil fuel but in the end the world needs to find a way to make renewable energy
just as cost effective as nuclear energy. But there are people that are scared at the fact of expanding
our reliance on nuclear energy because they think it's too dangerous. But in the history of civil
nuclear
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3. Nuclear Energy Pros And Cons
Some may ask what is nuclear energy the dictionary defines this as:
nuclear energy
n.
1. The energy released by a nuclear reaction, especially by fission or fusion.
2. Nuclear energy regarded as a source of power. Also called atomic energy
Nuclear power was first known to be researched in the early 1900's, and by the world war; it reached
its greatest peak by demonstrating to the world its power to destroy. Nuclear energy can be good or
bad, depending on how the person works with this material; it is used for both sides good and bad.
Scientists were unsure from the beginning of how it was possible to get energy from the material
called Uranium. They were sure that with its...show more content...
States have fought DOE's efforts on the grounds that the site is unsafe, pointing to potential activities
earthquakes, volcano's, water infiltration, underground flooding, nuclear chain reactions, and fossil
fuels and mineral deposits that might encourage human intrusion in the future.
However, DOE contends that the evidence so far indicates that the places that they have chosen are
likely to prove suitable and that studies of the site should continue.
The safety of geological disposal of highly radioactive waste depends highly on the characteristics
of the rock formations around it from which a repository would be hollowed out. Many geological
formations are believed to have remained undisturbed for millions and millions of years, it appeared
technically possible to isolate radioactive materials from the environment until they decayed high
enough so that the level of the radioactive material is not harmful.
Scientific confidence about the subject on the deep geologic disposal has been more difficult to
apply to specific sites. Every high–level waste site that has been proposed by DOE discoveries of
unacceptable flaws, such as groundwater flows or earthquake vulnerability, that could release
radioactivity into the environment, this is not good for nature.
Their are both pro's and con's
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4. Nuclear Essay
The UK civil nuclear power industry initially started in 1946 followed by the establishment of one
of the world's first nuclear power plant in 1956 [23–24]. This commercial scale reactor was built in
southwest Scotland and given a name "MAGNOX" due to the fuel cladding (magnesium
non–oxidising alloy) used to contain the fuels. The MAGNOX reactor uses natural uranium metal
fuel to generate thermal energy while using graphite bricks to moderate the fast moving neutrons
within the core. Two types of graphite bricks are used in MAGNOX design; these are Pile Grade
A (PGA) and Pile Grade B (PGB). The former is used as a neutron moderator due to its high density
and lower neutron absorption, whereas the latter is mostly used as a reflector [23]....show more
content...
Currently, there are fifteen operating reactors in the UK with a combined total output around 8883
MWe, and one under construction [27]. Fourteen of the fifteen operating reactors are AGRs and
located at seven different power stations, making the AGRs the most dominant nuclear reactors in
the UK. The remaining two reactors (including the one under construction) are based on PWR design.
AGRs are the second generation of the UK nuclear power plants, and initially designed to improve
the steam cycle efficiency of the early reactor design (MAGNOX). This type of reactors exists only
in the UK and operated by EDF–Energy (formerly British–Energy). Since the AGRs first operation
in 1976 they have become the UK's most dominant reactor after showing an increased economic
benefits and steam cycle efficiency approximately 42% compared with MAGNOX reactor, which
has approximately 31% efficiency [25]. AGRs are capable of producing peak fuel temperature
approximately 800 В°C and the coolant gas temperature approximately 650 В°C at 40 bars. The
steam generated by the AGRs can reach up to 540 В°C at 165 bar, which is capable of driving the
standard 660 MW turbines.
Some of the main differences between the early MAGNOX reactors and AGRs that have a key
impact on the reactor
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5. What is Nuclear Power? Essays
The process used was to gather information from books, the Internet, and interviewing my father who
works at a nuclear power plant.
There are many forms of energy. Coal, gas, oil, and nuclear power are the most common forms of
energy used in the United States. Three of these energies are limited: coal, gas, and oil. Nuclear
power is unlike the other three because it uses the fission process instead of combustion. This form
of power is unlimited. It produces heat energy like the others, but does not produce Carbon Dioxide
and other particulate emissions.
Nuclear Power is made by Nuclear Fission. To create fission you must split a nucleus (usually
Uranium) with a neutron. This...show more content...
Alpha particles are another type of radiation. Alpha particles are positively charged particles that
lose power rapidly. They are not dangerous to the skin tissue but if inhaled or ingested can be fatal.
A simple sheet of paper can stop Alpha Particles.
Also Beta Particles are radiation. Beta Particles are positive or negative electrons. They are like
Alpha Particles, they are only dangerous if inhaled or ingested. Clothing or aluminum can stop Beta
Particles. All of these types of radiation can be considered nuclear waste, but also often have uses. X
Rays use radiation to examine us. Radiation is used in medicine, dentistry, and industries. Remember
the next time you get an X– Ray you are exposed to radiation.
There are two types of reactors. One is the Boiling Water Reactor (BWR). First, pure water is
pumped into the reactor and boiled into steam. The steam travels through the containment structure
to the turbine. The turbine spins turning a generator that makes electricity. The steam goes to a
condenser. The condenser uses colder water (usually from a river or the sea) to condenses the steam
into water, which is reused by the reactor. A BWR has only one "side".
Boiling Water Reactor (BWR)
The second type is the Pressurized Water Reactor. The Pressurized Water Reactor is different from
the
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6. Nuclear Energy Essay
Nuclear Energy Energy consumption has become a necessity and an important part of our daily
life in the past 10 years. It seems that the world is looking for an energy source that is cleaner,
cheaper and more efficient and since nuclear energy has emerged it has become the forerunner for
alternative energy sources. 'As of 2004, nuclear power provided 6.5% of the world's energy and
15.7% of the world's electricity, with the U.S., France, and Japan together accounting for 57% of
nuclear generated electricity' ('Nuclear energy facts' 2007). Nuclear energy can be a doubled edged
sword as it can be used for peaceful uses or used to manufacture weapons of mass destruction which
can put the world in danger. As more countries begin to...show more content...
But after all the advantages of using nuclear energy outweigh its disadvantages as nuclear plants emit
less than one–hundredth of carbon dioxide gas compared to coal or gas–fired energy plants so there
is a very little effect on the environment. Humans living next to coal–fired power plants are exposed
to higher radiation doses than those living near nuclear plants, where the former is harmful to human
health and may be responsible for acid rain. On the other hand dependence on nuclear energy is now
increasing in most countries as nuclear reactors use uranium as a fuel which is found everywhere on
earth. It is inexpensive and easier to transport than other fuels which makes them less dependent on
oil and foreign fuel from other countries. No doubt that most people believe that the world is a
better place than it was 20 to 30 years ago. But actually, the world is becoming a very dangerous
place with number of countries owning nuclear weapons increasing. 'In all, there are approximately
27,600 nuclear weapons in existence' ('Weapons around the world' 2005). They are constructed using
either highly enriched uranium or plutonium, which then relies on two basic ways to release energy
from an atom which are nuclear fission and nuclear fusion. Nuclear weapons are then divided into
two groups, fission bombs which break apart heavy atomic nuclei and fusion bombs which fuse light
nuclei. With many recent
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