Forum: Engineering > View Thread
| Title: | The uses of solar energy |
|---|---|
| Date: | 2008-12-25 4:25 |
| Author: | rony ( Specialization: Unspecified , Location: ) |
| Message: | The uses of solar energy The sun and moon, two go hand in hand Sunbeam source of Zia on the ground and reverse beam from the surface of the moon light. The Earth's orbit around the Sun specifically and accurately, any difference in the course of land will lead to sudden changes in temperature, structure and atmosphere, spoke disaster Use of solar energy: Benefited rights since the foot of the direct solar radiation energy in many applications at agricultural crops and also used to heat homes in other areas in the science books were burned Archimedes historic Navy roman war in 212 BC by focusing solar radiation on ships by hundreds of enemies Metal shields. In Babylonian times the women priests using polished gold verse to focus solar radiation to get to the fire. Scientists also like Chernhos ,Suez ,Lavoisier ,Mochoc , Ericsson ,Hardnj and others using solar energy in the smelting materials and cooking and to generate steam to heat water and air. We have tried long ago the human use of solar energy exploitation, but small and limited extent and with the great development of technical and scientific progress to which the rights are new scientific methods in the field of solar energy utilization. In addition to the advantage of solar energy compared with other energy sources, including the following: -- 1. The technique used by the remaining relatively simple and uncomplicated compared with technology used in other energy sources. 2. Providing a safe environment where solar energy is not clean energy air pollution, which gives special status in this area, especially in the next century. Solar energy conversion: Solar energy can be converted to electrical power and thermal power through conversion electroluminescent and conversion of solar thermal energy, photovoltaic conversion is intended to convert solar radiation or light directly into electrical energy mediated by solar cells. The discovery of this phenomenon by some physicists in the late nineteenth century AD, and found that the liberation of electrons can highlight some of the minerals known as the blue light has a more yellow light on the liberalization of electrons and so on. The world was Einstein the Nobel Prize in 1921 unable to explain this phenomenon. The manufacture many models of the solar cells can produce electricity scientific and solar cells is that it does not include spare parts or mobile, and it does not consume fuel and air pollution and life long not only requires little maintenance and can be placed on the roofs of buildings to serve in the production of electricity Usually estimated at about 20% efficiency and the remainder can be used to provide heat for heating and water heating. The solar cells used in the operation of the communications system in different ways and lighting and water pumping facilities and others. The thermal conversion of solar energy depends on the conversion of solar radiation to thermal energy. If the object was dark and isolated for the color to the solar radiation it absorbs the radiation and high temperature. According to the heat in the heating and cooling, water heating, power generation and others. The applications of solar heaters are the most prevalent in the area of the thermal conversion of solar energy. Can take advantage of thermal energy in cooking food, as there are research in this area for the production of cooking equipment operating within the home rather than to take the trouble to sit in the sun during cooking. There are several technical ways to store solar energy thermal storage, including electrical, mechanical, chemical and magnetic. The storage of solar energy research of the most important areas for development in solar energy applications and spread over a wide, as solar power, although it is only available position is not at hand and not free sense concept. it's real price words on the equipment used to transform electromagnetic energy into electrical energy or heat. http://engineering-sciences.blogspot.com |