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DEC

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Ever since man developed from the agrarian age to the industrial age, his primal scream has been the same, “ENERGY!!!” The need for energy has never been higher than it is at present, specifically electric energy or electricity. In the modern era, man derives his ever-growing electricity needs from two primary sources. The first is the burning of fossil fuels like coal to convert water into steam. The steam moves through a turbine supplying power to an electric generator. The second is the conversion of flowing water whose kinetic energy is used to rotate a hydraulic turbine powering a generator. As we become more and more technologically advanced, there are two main problems with these traditional sources of power. One of the limitations is location-specific and the other is supply-specific, “Neither of these traditional methods lends itself very readily to supplying power to satellites in orbit about Mars or other remote locations. Furthermore, man is also beginning to realize that the earth’s fossil fuel supply is finite, its water power restricted to a few geographical areas, and that he must start now to look for new methods of converting thermal, radiant, and mechanical energy to electricity” . This analysis will examine direct energy conversion, or the new methods being utilized to convert energy to electricity, like thermoelectricity, photovoltaics, magnetohydrodynamics and fuel cells. A histo

. . .
e solar energy. Three main types of collectors exist and there is a multitude of storage collectors available. The three type of collectors are flat-plate, focusing and passive. Flat-plate collectors are used most often and they are solar panels that are arranged in a plane. While they can vary in size, their output is dependent upon not just sized, but also the direction they face and their degree of cleanliness. Variables such as these determine the level of radiation that hits the collector. Many solar systems include machinery that continually positions the collectors to face the sun. Focusing collectors are simply flat-plane collectors that also use optical components positioned on them in a fashion that yields the greatest amount of radiation hitting them. While they have an advantage over flat-plane collectors in that they can generate much greater levels of energy, they are often prone to lose radiation that flat-plane collectors do not. For example, flat-plane collectors can also absorb the radiation that bounces off the earth’s surface, while focusing collectors do not. The silicon components of the focusing collectors are also much more prone to heat damage than flat-plane collectors. Passive collectors are
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Some common words found in the essay are:
FUEL CELLS, Gas Propane, Research Institute, Energy Conversion, DEC INTRODUCTION, Department Energy, THERMOELECTRIC CONVERTERS, ENERGY Solar, GN Hatsopoulos, DEC SYSTEMS, energy conversion, fuel cell, fuel cells, direct energy, direct energy conversion, solar energy, dec systems, controlled fusion, energy conversion systems, conversion systems, energy conversion methods, flat-plane collectors, solid oxide, solar energy conversion, jan 4 1999,
Approximate Word count = 3854
Approximate Pages = 15 (250 words per page)

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