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Home » Solar Energy (283 Papers)

Solar Energy
A Primitive Resource: Solar Energy and Its Many Uses Ever since the dawn of time, the sun has been a resource we cannot live or do without, so its not such a shock that man has come up with the idea of solar energy. Solar energy had many uses. Some can be dangerous and some, a very valuable asset to the modern world. Solar energy is energy derived from the sun in a form of ultra-violet rays. Its was first applied to use in 212 B.C., by the Greek genius Archimedes. Solar energy ... Solar energy had many uses. ... Some solar energy is dangerous. ... The Solar Energy. ... Solar Energy. ... Solar Energy Now. ... Wordcount: 1444 Pages: 6
Solar Energy
Solar Energy Solar energy is a very useful resource. Today 80% of the energy we use comes from fossil fuels and about 1% comes from solar energy. Fossil fuels are nonrenewable, that means that they are used up faster than they could be replaced. Also fossil fuels limited and cause pollution. They are the primary cause for air pollution that causes acid rain and global warming. The good thing about solar energy is that it is renewable because it is always replaced. Also solar energy does not pol ... Solar Energy Solar energy is a very useful resource. Today 80% of the energy we use comes from fossil fuels and about 1% comes from solar energy. ... Also solar energy does not pollute the enviornment. ... There are many uses of solar energy. ... Solar-powered cars are electric cars that use solar energy through solar cells. ... Wordcount: 1752 Pages: 7
Solar Power
For many years scientists have been searching for new and improved ways to power their instruments. Many solutions have come to them along the way. They have discovered ways to make it by burning fossil fuels or by the force of water currents spinning turbines. But lets face it, their won"t always be fossil fuels to burn forever and there isn"t always a current to create electricity were you need it. That is exactly were solar power would come in. Solar power can reach places were other typ ... Solar power can reach places were other types of energy would never be capable to reach. ... "Solar Energy Converting Apparatus," patent #2,780,765, was issued to Chapin, Fuller, and Pearson, AT&T. 1958: Hoffman Electronics achieved 9% efficient PV cells. ... JPL instituted the Block I procurement by the U.S. government. 1977: The Solar Energy Research Institute (SERI), later to become the National Renewable Energy Laboratory (NREL), opened in Golden, Colorado. ... David Carlson and Christopher Wronski at the 17th Photovoltaic Specialists Conference, "for crucial contributions to the us... Wordcount: 1340 Pages: 5
Solar Energy
Tran 1 Solar Energy About 47 percent of the energy that the sun releases to the earth actually reaches the ground. About a third is reflected directly back into space by the atmosphere. The time in which solar energy is available, is also the time we least need it least - daytime. Because the sun's energy cannot be stored for use another time, we need to convert the suns energy into an energy that can be stored. One possible method of storing solar energy is by heating water that ... Tran 1 Solar Energy About 47 percent of the energy that the sun releases to the earth actually reaches the ground. ... The time in which solar energy is available, is also the time we least need it least - daytime. ... One possible method of storing solar energy is by heating water that can be insulated. ... Will solar energy be the wave of the future? ... Automobiles in the future will probably run on solar energy, and houses will have solar heaters. ... Wordcount: 1450 Pages: 6
Solar Energy Industry and It's Benefits in the USA
Solar technology refers to the technology of using the sun's rays of energy in order to provide heat, light, heated water, and even electricity, which can be used in homes, business establishments, and in schools, and so on. Solar energy can also be utilized for cooling purposes, and there are in f ... Solar energy can also be utilized for cooling purposes, and there are in fact several different types of solar energy. ... (National Renewable Energy Laboratory: Solar Research) As more and more people everywhere are learning the benefits of solar energy and the ways and means in which this versatile energy may be used, industries based on solar energy systems have been reaping the benefits. ... (Fast Solar Energy Facts, Global Performance) It must be remembered that solar energy apparently is the best solution to today's energy problems, if only because of the fact that it seems to be ... Wordcount: 1350 Pages: 5 Bibliography
energy
The first question, which I must ask in order to write this essay, is, what is energy? Energy gives us the ability to do thing. Everything in the world needs a supply of energy, and so energy is used to make things work. The word energy is taken from the Greeks and means "the work within" and nearly all energy originally came from the sun. The main type of energy used in the world is fossil fuel. Fossil fuels are called non-renewable because they are the remains of plants and small dead animal ... Some renewable energy sources, which have been discovered, are Bio-fuels, Nuclear fuels, solar power and wind power. ... In order to help decide this question I am going to explain a bit about Bio-fuels, Nuclear power, solar power and wind power. ... There are various ways of trapping solar energy and just as many ways of turning it into our favourite energy, electricity. The most common way that we collect energy from the suns rays is with solar panels. There are two types of solar panels that we use. ... Wordcount: 645 Pages: 3
The Solar Energy Source
Solar Energy Ever since the dawn of time, the sun has been a resource we cannot live or do without, so its not such a shock that man has come up with the idea of solar energy. Solar energy had many uses. Some can be dangerous and some, a very valuable asset to the modern world. Solar energy is ... Solar energy had many uses. ... Solar energy is energy derived from the sun in a form of ultra-violet rays. ... first published account of the use of solar energy since the fall of the Roman Empire Some other use of solar energy after that was the solar roof and the solar oven. ... Some solar energy is dangerous. ... Solar energy is the only energy source that cannot be controlled. ... Wordcount: 1213 Pages: 5 Bibliography
Solar Energy
Solar Energy This experiment deals with the testing of solar energy and what material holds the greatest amount of heat. Solar energy is heat that the sun gives off. The materials used to determine what holds the heat the longest are rock, soil, water, and stone. The purpose of this project is to see what of the four materials hold the heat the longest. My hypothesis is that soil holds the heat or energy the longest is because soil is black. Black is the number one heat t ... Solar Energy This experiment deals with the testing of solar energy and what material holds the greatest amount of heat. Solar energy is heat that the sun gives off. ... My hypothesis is that soil holds the heat or energy the longest is because soil is black. ... I got four thermometers and four cork plugs to see if water, soil, stone, and air could hold heat to see what material can keep the heat for solar energy. ... Wordcount: 577 Pages: 2
Renewable Energy
Solar: What is it? Solar power is energy from the sun. The sun is 150 million kilometres away, but it is over 1 million degrees Celsius at the core. If we could harness it, there is enough solar power reaching the earth to provide all of our energy needs 10,000 times over. Since almost the beginning of man, solar power has been used for drying clothes and food. It was not until 1954, that scientists in the United States produced electricity from the sun - to power satellites in space. They inv ... Solar: What is it? Solar power is energy from the sun. ... If we could harness it, there is enough solar power reaching the earth to provide all of our energy needs 10,000 times over. Since almost the beginning of man, solar power has been used for drying clothes and food. ... Biomass Put another way, biomass is stored solar energy that can be converted to electricity or fuel. ... Wordcount: 786 Pages: 3
Energy Efficient Housing
Energy Efficient Building Windows Energy efficient windows have multiple layers of glass. The reason for this is because the more layers of glass you have the better it insulates the house. Three or four layers of glass are one of the best because you have more airspace in between layers. A smaller airspace doesn"t insulate the building as well as a thicker airspace would. The thickest an airspace should be is 1 inch because any thicker than that will cause the glass of the w ... Solar Energy Solar energy is designed to bring the sunlight into the building during the winter. ... When using solar energy, your heating and air-conditioning costs can be reduced. ... Passive solar energy is done without using solar panels. ... Dark things are very vital when dealing with solar energy because if the wall or furniture isn"t dark enough, the house will not absorb the heat and the solar energy has been wasted. ... To store the passive solar energy, use an 8" thick slab of thick concrete. ... Wordcount: 3548 Pages: 14
Nuclear Energy
Nuclear Energy: A Solution for the World"s Energy Crisis. "Nothing in life is to be feared. It is only to be understood." Marie Curie, the discoverer of radium and Nobel Prize winner spoke these words many years ago. Years later, the United States along with the global community is on the brink of using a old, yet still unknown energy resource; nuclear energy. People fear nuclear energy from past accidents such as Chernobyl, but know very little about this energy source. Environmentalists ... Nuclear Energy: A Solution for the World"s Energy Crisis. ... People fear nuclear energy from past accidents such as Chernobyl, but know very little about this energy source. ... Nuclear energy is a safe, renewable, energy source that should be used to meet energy demands around the world. ... This is evident in France, where 79 percent of energy is produced by nuclear energy, and the carbon intensity is two thirds of that in the United States ("Endorsements of Nuclear Energy" 8). ... With these types of statistics, nuclear energy looks to be a clear, simple, cheap solution ... Wordcount: 2445 Pages: 10
Living In Space: Energy
Living In Space: Energy Space is filled with radiant energy and beyond earth's atmosphere this energy flow more steadily and more intensely from the sun than that which penetrates to the surface of the Earth. So an abundant and essential source of energy that would be used in space for the space colony would be solar radiation by developing satellite solar power stations. To live in space, humans must be protected from the fierce intensity and penetrating wavelengths of unattenuated sunlight ... Living In Space: Energy Space is filled with radiant energy and beyond earth's atmosphere this energy flow more steadily and more intensely from the sun than that which penetrates to the surface of the Earth. So an abundant and essential source of energy that would be used in space for the space colony would be solar radiation by developing satellite solar power stations. ... Solar power satellites are a pollution free way to generate electricity and cost no more than coal or nuclear energy. ... The key product in the solar power stations is solar cells, which does the actual converti... Wordcount: 922 Pages: 4
An Argument in Favor of a Massive Solar Campaign in America
The Resolution Because the U.S. leads the world in the production of greenhouse gases (in particular, CO2) that are released into the atmosphere and contribute to the present climate change known as global warming, a plan of action is needed. The continuing sharp rise in the temperature of the air and of the oceans is a phenomenon that is presently causing serious problems world wide. This warming trend may, according to empirical research, lead to catastrophic, unprecedented destruction. S ... So, the way to resolve this most challenging of all global environmental issues, is through the implementation of a very comprehensible and pragmatic four-fold plan of attack: a) begin a massive phase-in of an energy conservation program (insulating houses, teaching people to use less energy); b) launch a major federally-mandated private/public partnership push towards the installation of solar-powered technologies in homes and businesses; c) as new and renewable energy sources come online, and energy conservation reduced the need for additional energy sources, begin the inevitable phase out o... Wordcount: 2600 Pages: 10 Bibliography
Solar Energy Electrical Source
A livable society in which all essential sources of man-made energy, which is virtually pollution-free and affordable, seems impossible. Although such a concept seems like science fiction today, real efforts are underway to assure that by the late 21st century, what once seemed like a dream, will b ... Japan now pays half the cost of rooftop solar energy plates. ... Solar panels are an ideal source of electricity, which is the most versatile form of energy. ... They wanted to avoid fossil and nuclear power.As for automobiles, using solar energy will allow for less carbon dioxide emissions and a cleaner environment. I chose the topic of solar energy because I am supportive of having a more energy conscious environment. Although the solar energy panels are expensive, I feel that in the long run they will save money.... Wordcount: 588 Pages: 2
Simple Applications of Solar Energy
THE SOLAR RESOURCESIMPLE APPLICATIONS OF SOLAR ENERGYThe Sun's rays have long been used as the heat source for evaporating and distilling water. Solar evaporation has always been an important salt-production process. Salt water is pumped into shallow ponds that are open to the Sun. As the water evap ... Solar CollectorsSolar collectors are devices that absorb solar energy and produce heat. ... Active Solar Space HeatingMost of the heating energy used in residences is for space heating, that is, for providing the heat needed to maintain comfort within a building. Solar energy is a good match for this heating task because it is able to produce heat at temperatures close to those needed for heating buildings. ... Measures for reducing the need for conventional energy should include insulating and tightening a building before installing a solar system in it. ... (See energy sources; power, gene... Wordcount: 1981 Pages: 8
nuclear energy
Nuclear Energy From Theory to Practice The nuclear age began in Germany, in the 1930s in the lab of chemist Otto Hahn. Hahn was attempting to produce radium (In great need during the war) by bombarding uranium atoms with neutrons. To his surprise, he ended up with a much lighter element, barium. That was 1938, This started the race for the power of the atom. Just four years later Canada entered nuclear age in cooperation with the british. Wartime, 1942: The Briti ... On average, 80% of the released energy is carried off by the fragments in the form of kinetic energy. ... Viable solutions for Energy needs Annually, the demand for energy in Ontario increases by 5%. ... Of the other two, Solar energy is in limited use at the moment to things like Solar calculators, or Solar cells used to supplement energy needs in a large building. To collect 10^14 kWh (kilo-watt hours) (Average reactor output) per year with solar cells, they would take up 1% of the earths total land surface, or a area comparable in size to Western Europe! Wind energy is an un... Wordcount: 1883 Pages: 8
AIR AND WATER
A major transition in the modern energy age began in the 1970s, when the big nation"s industry started to grow up rapidly. The use of oil was very important and overnight, oil prices shot through the roof, and the trend of ever-cheaper, ever-more-plentiful energy sources were in need. Another player on the modern energy stage is nuclear power. An industry that didn't exist 40 years ago is now at a huge amount of production, producing 20 percent of the nation's electricity. Ironically, the in ... Another player on the modern energy stage is nuclear power. ... However Nuclear Energy is the most dangerous one, as we can see what happened in Chernobyl in 1986, and it is dangerous if the nations use Nuclear Energy to kill people like at the end of the world war. It is not a dream to think of solar power that is cheap enough for universal use a world full of zero-polluting electric cars. ... " (Solar) Also, there is continued interest and research into fusion power. ... The most green energy resource is solar energy right now and it is very cheap to get heat from the sunlight.... Wordcount: 422 Pages: 2
Air and Water
A major transition in the modern energy age began in the 1970s, when the big nation"s industry started to grow up rapidly. The use of oil was very important and overnight, oil prices shot through the roof, and the trend of ever-cheaper, ever-more-plentiful energy sources were in need. Another player on the modern energy stage is nuclear power. An industry that didn't exist 40 years ago is now at a huge amount of production, producing 20 percent of the nation's electricity. Ironically, the ... Another player on the modern energy stage is nuclear power. ... However Nuclear Energy is the most dangerous one, as we can see what happened in Chernobyl in 1986, and it is dangerous if the nations use Nuclear Energy to kill people like at the end of the world war. It is not a dream to think of solar power that is cheap enough for universal use a world full of zero-polluting electric cars. ... " (Solar) Also, there is continued interest and research into fusion power. ... The most green energy resource is solar energy right now and it is very cheap to get heat from the sunlight. ... Wordcount: 422 Pages: 2
Nuclear Energy and the Environment
Nuclear Energy and the Environment In our society, nuclear energy has become one of the most criticized forms of energy by the environmentalists. Thus, a look at nuclear energy and the environment and its impact on economic growth. Lewis Munford, an analyst, once wrote, "Too much energy is as fatal as too little, hence the regulation of energy input and output not its unlimited expansion, is in fact one of the main laws of life." This is true when dealing with nuclear pow ... Nuclear Energy and the Environment In our society, nuclear energy has become one of the most criticized forms of energy by the environmentalists. ... Finally, the environmentalists claim that if society wastes less energy, and develops the means to use the energy more efficiency, then there would be a definite decrease in the requirement for more energy producing plants. ... Lastly, they said that renewable energy is (a) unreliable in that the wind, for example, could not be depended upon to blow, nor the sun to shine, and (b) were intermittent in that a 1,000 mega-watt... Wordcount: 5736 Pages: 23
Fossil Fuels And Alternative Sources
Debate Topic: Fossil Fuels and Alternative Sources Most people in this world but especially in the U.S. think that fossil fuels are never ending. However, they are wrong and completely take them for granted. Therefore, if they do not try to use and find other sources for energy soon then fossil fuels will become extent. So I have taken it upon myself to look into other sources of energy and give my viewpoint about them. I looked into a couple alternative sources. First, technology and manu ... So I have taken it upon myself to look into other sources of energy and give my viewpoint about them. ... First, technology and manufacturing advances have brought the cost of renewable energy use, such as solar and wind, down significantly. ... In the near term, there are niche applications, such as remote photovoltaics and solar swimming pool heating where renewables have a definite cost advantage. ... Over 3,500 MW of wind energy generating capacity have been installed worldwide. ... Life cycle costing comparisons between renewable energy systems and conventional power generation should inc... Wordcount: 314 Pages: 1
Geothermal Energy 2
I. Overview of Geothermal Energy Geothermal energy (from the Greek words geo [earth] and therme [heat], thus 'earth heat' energy) is a domestic energy resource with cost, reliability, and environmental advantages over conventional energy sources. Energy from this source comes from the renewable source of heat from deep in the Earth (diagram: A). Heat is brought up to near the surface by thermal conduction (diagram: B) and magma. This heat heats ground water to form hydrothermal resources ( ... Overview of Geothermal Energy Geothermal energy (from the Greek words geo [earth] and therme [heat], thus 'earth heat' energy) is a domestic energy resource with cost, reliability, and environmental advantages over conventional energy sources. ... Utilizing geothermal energy not only contributes to our energy supply, but also reduces energy demand (through the use of geothermal pumps to heat and cool buildings, reducing the need for natural gas and other nonrenewable resources). ... In fact, according to the US Department of Energy, "the resource base for renewable energies- geo... Wordcount: 840 Pages: 3
Energy Policy for the 21st Cen
INTRODUCTION ...a safe, environmentally sound, and an economically viable energy pathway that will sustain human progress into the distant future... Can this "energy pathway", as called for in the Brandtland Commission in 1987 (Mitchell, 1996: 149), be fulfilled by the current energy situation? The world population is likely to reach 10 billion by the end of the 21st century and demand for energy will increase. Current fossil fuel use seems to be altering the global climate and causing pollu ... Can this "energy pathway", as called for in the Brandtland Commission in 1987 (Mitchell, 1996: 149), be fulfilled by the current energy situation? ... Suitable short-term storage space is running out and a solution must be found if nuclear energy is to be a significant part of energy policy for the 21st century. ... CONSERVATION One policy for 21st century energy use is conservation. If people and businesses used less energy and it was used more efficiently, then less carbon dioxide and pollution would be emitted and new energy sources might not be needed. ... It is a renewable source of e... Wordcount: 2758 Pages: 11 Bibliography
Astronomy
How Do Stars Form? A star begins its life as a large and comparatively cool mass of gas. The contraction of this gas and the subsequent rise of temperature continues until the inside temperature of the star reaches about 1,000,000° C. The atoms move faster and that is what causes the star to gain its heat and for the temperature to rise. At this point a nuclear reaction takes place in which the nuclei of hydrogen atoms combine with heavy hydrogen deuterons form the nucleus of the inert gas ... The later reaction frees large amounts of nuclear energy, and the further contraction of the star probably has stopped. When the release of energy from the deuteron-hydrogen nucleus reaction ends, contraction begins and the temperature of the star increases again until it reaches a point at which a nuclear reaction can occur between hydrogen and lithium and other light metals present in the body of the star. Again energy is released and contraction stops. ... Stars contribute greatly to the solar system and on earth. ... In space there are a group of different solar systems and each star pr... Wordcount: 431 Pages: 2
nuclear power plant
New form of Energy for Capetown Capetown is considered to be the largest city in South Africa, having a population of over 2,727,000 inhabits. The energy form used in Capetown at the moment, is Gas Turbine, wich provides most of the city´s electricity. The use of electricity in Capetown is very low compared to western countries, for example there is only one TV for almost ten people, the energy consumption per inhabit a year is about 4000 kWh, wich is 2550 kWh less than the energy consump ... The energy form used in Capetown at the moment, is Gas Turbine, wich provides most of the city´s electricity. ... If we built other forms of plants we would need: 3 Coal power plants or 12 Hydro power plants or 7 Gas turbine power plants or 173 Solar power plants or 4792 Wind power plants. ... Solar power pant is also a good solution because it does not really pollute the air, but the problem with it is the space that it requires to produce the amount of energy that we need, for example a solar plant wit capacity of 10 MW needs a space of 53x a soccer play ground, and huge amou... Wordcount: 765 Pages: 3
Conservation of Energy
Energy supplies can be extended by the conservation, or planned management, of currently available resources. There are three types of energy conservation practices. The first is curtailment; doing without. For instance, cutting back on travel to reduce the amount of gasoline burned. The second ... The third type is the more efficient use of energy; adjusting to higher energy costs. ... Substantial energy savings began to occur in the United States in the 1970s when the federal government imposed a nationwide automobile efficiency standard and offered tax deductions for insulating houses and installing solar energy panels. ... Low energy prices make it difficult to convince people to invest in energy efficiency. ... Techniques to save energy include designing buildings to use passive solar heat, using computers to monitor and regulate the use of electricity, and investing in more effi... Wordcount: 658 Pages: 3