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Advantages & disadvantages of nuclear energy
Renewable and non-renewable energy sources
Renewable and non-renewable energy sources
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Renewable and Nonrewable Energy Resources
Energy is used as part of everyday lives and can be used in one form
or another. Energy is about doing work and it is all around us.
Animals need energy to live and machines need energy to work. Energy
exists in many forms, such as:
- Light
- Heat
- Electrical
- Mechanical
- Atomic
- Chemical-etc.
There are different types of energy resources. They go into two
groups, which are Non-renewable and Renewable.
NON-RENEWABLE ENERGY RESOURCES
==============================
Once non-renewable resources (natural resources) are consumed they
cannot be replaced. The main energy sources used by humans are
non-renewable resources; and some of these include fossil fuels such
as coal, gas and oil.
Fossil Fuels
============
Coal, oil and gas are the sources of energy we call fossil fuels. They
are called fossil fuels because they are decayed and altered remains
of plants and animals that lived on earth hundred of millions of years
ago. Fossil fuels are usually found below ground (like oil and natural
gas). Fossil fuels hold a lot of stored chemical energy. Burning only
a bit of coal. Oil and gas releases a lot of energy.
The six energy sources shown are mainly used in the world today and
also show the amount of energy we get from each fuel.
Coal
====
Coal has been used for a very long time and still provides more than a
quarter of all the fuels used in the world today. Coal is mostly made
of carbon and has been used as part of providing heat and when
machines were invented they were powered by burning coal. Coal is a
heavil...
... middle of paper ...
... onto the natural grid and out to our homes where it
powers out TV’s, transits etc. It also supplies a lot of industries.
Power For The Future
Fossil fuels cause pollution and may run out during the foreseeable
future. The renewable energy resources are still not producing enough
energy to run the world. Nuclear power could well be the answer but
the effects it has on the environment are very serious. Nuclear fusion
could be a solution to future problems.
BIBLIOGRAPHY
============
I have written this bibliography to show the references I have used
and also the author.
Internet
Energy from the Sun- Jan Burgess
Radiation and Nuclear energy- Jay Palmer
Power from the wind- Hazel Songhutst
Physics- David Sang
Co-ordinated Science (Physics)- Stephen Pople and Peter Whitehead
We are dependent on energy for almost everything in our lives. When the outside temperature rises a little, we immediately switch on the air conditioner to keep our house cool. This is using up of energy. We have starting taking things for granted and we have started wasting energy unnecessarily. Energy is limited and hence to maintain the quality of life, it is important that we use our energy resources wisely. If we do not conserve energy, the energy will exhaust and we will have nothing to use.
Coal is by far the most abundant of fossil fuels, and will be available for much longer than oil. Having been harvested and burned since the 13th century, a massive infrastructure has been formed to quickly and efficiently mine, deliver, and burn coal. Coal is also the cheapest of fossil fuels (The Futurist, 1997)
Coal is considerably one of the most important sources of energy in nature and is one the most significant sources for power generation worldwide. The excavation and importance of coal became mainstream and apparent during the Industrial Revolution of the 19th and 20th centuries.
The myths must be dispelled. First of all, coal is not a bountiful. It is a nonrenewable resource and, according to a United States Geologic Survey, it is only expected...
Coal was the cutting edge of energy generation before any other source was extensively used. Wood, wind, water, and muscle power provided nearly all of the energy before the widespread adoption of coal. The greater energy density of coal provides a greater efficiency than these other methods of generating power; combine that greater efficiency with its ease of transportation and coal easily becomes the fuel of a nation. In its early days, coal was mined and consumed in England, a country short on wood and usable water power. This shortage in other areas left a gap that the relatively cheap coal could fill. Coal allowed for industry and manufacturing to grow and produce profits greater than almost any other industry. Coal gained its popularity mainly because it had an economic value in that it provided energy in quantities and in locations that were unobtainable and unreachable for the other energy sources at the time. This start in England led to momentum in ta...
Over a span of 273 years people have been mining coal in West Virginia. West Virginia has provided heat for homes and businesses with bituminous coal. And today, West Virginia’s coal miners are
Solar power for instance is one of the most popular and easiest of all of the renewable energy sources to harness, especially for home and business uses. (Galbraith) For around the same ...
The reason we don’t replace coal energy is because it produces a profitable amount of energy, just like most cars get fairly good mpg. While solar and wind energy are not efficient and take a ton of sun and wind as well as entire farms of panels or mills to produce the same amount of energy, which goes back to solar and wind being more expensive.
Burning and mining coal for fuel is harmful to the environment but because how cheap and easy it is to find many people are unwilling to give it up as a fuel source. One of the problems with coal is that they are limited and are non-renewable so once it has been used we won’t be able to use it again.
The use of fossil fuels on a large scale, specifically coal, began with the Industrial Revolution in England. Industries/corporations first used coal as a main source of energy to fuel their factories, and it became even more popular when railroads started. According to the United States Energy Department, "...by the early 20th century coal had become the major fuel in the United States, accounting for nearly 75% of the nation's energy requirements." Soon after, newer and cheaper fossil fuels, such as oil and natural gas, were high in demand. Energy Supplies, Sustainability, and Costs, by Sandra Alters, states oil was used as the main source of fuel to heat homes and offices, and gas powered the growing number of cars (57). "Oil shoved aside coal as the world's primary fuel, just as coal had replaced wood", says Tom Mast in Over a Barrel: A Simple Guide to the Oil Shortage (15). Most Americans were not concerned wit...
The U.S. alone produces 1 billion tons of coal annually, which is about 12% of the world’s supply and we’re second to China. The presence of coal in every continent and over seventy nations around the world has enabled the supply that’s almost eternal in nature. Some of the highest reserves are in China, The U.S., Russia, and India. The generation of coal can
One efficient way to acquire energy is Hydropower. Hydropower is power derived from the energy of falling water or fast running water. This energy converter is harmless to the environment. Other ways will affect the atmosphere and the environment in a negative way. The most common device for hydropower is a dam. It relies on the water cycle. This is one of the oldest sources of energy.
March 17, 2014. Hinrichs, Roger ; Kleinbach, Merlin. Energy, Its Use and the Environment. 2013. The. Print.
With the depletion of fossil fuel resources comes speculations and debates about alternative energy sources. The world, including the Philippines, is practically dependent on a dwindling non-renewable source of energy. Today, experts are debating about and considering three options: Nuclear, Solar, or Wind Energy. Everyone has been accustomed to the bad image of nuclear energy as a result of the Chernobyl and Fukushima incidents above all others. The popular belief is that radiation from a nuclear meltdown is very harmful to humans and other living things—which is true—and that nuclear power plants are very dangerous and not ideal—which is not. According to Smith, et. al (n.d), all the nuclear disasters that ever occurred were caused by human error and natural disasters like tsunamis, not one because of system failure. Putting the false beliefs aside, with proper engineering and adequate maintenance by experts, a nuclear power plant is a very ideal and viable source of energy for the following reasons:
Energy can be put into two broad categories Renewable energy and none renewable energy. Renewable energy sources can be reused continually as they are abundantly found in nature. All of them are non-polluting but devices used to collect the energy may impact the environment adversely. They are free but producing storage equipment or converting them into another form of energy may be costly.