Solar Energy
Energy is the ability to do something. There are many pictures of Energy, is the most important in the heat and light. Sound is also a power. There is a "mechanical energy" generated by machines, and "chemical energy" that is liberated when a Chemical.It can changes in energy conversion to another picture. For example, you can convert the chemical energy stored in the pocket battery Light.and can hands to operate as if they were machine. If "rubbed" palms together in a cool atmosphere, they, may become Warm. The mechanical energy resulting from the impact of the "rub" hands " friction "has been transformed into heat. Energy World quantity in the world fixed on-time, energy is not perish not develop. When it seems that the energy has been exhausted, they are, in fact, be turned into an image other.Energy sources: we are using energy derived from sources that store solar energy, such as coal and oil, as we use the energy derived from the sun directly. There which nuclear energy liberated from the power.
Nuclear energy: scientists reached during the last fifty year to edit this energy of some elements such as uranium and plutonium.
Oil: It is one of the main sources of energy. And from it we get the gasoline and diesel oil and paraffin oil and thousands of other products. Oil is made up of the remnants of marine micro-flora and fauna.
Natural gas consists almost the same way that it is made up of oil and there is between the deep layers of rock in the ground.
Electricity is the greatest interest at the energy picture, where it can be delivered from one place to another across the wire. As can be generated easily Photos other energy. For example, watershed energy used to run a generator that produces electricity, and this is one of the electricity Photos "hydroelectric" or forces generated hydrated.
Other sources of energy: these include wind sources and ocean waves and warm water that flows from the ground in some parts of the world In the form of a geyser. And explode most of the hot water springs in New Zealand and the United States and Iceland
Solar Energy
God created the sun and the moon and made Sunbeam source of Zia on the ground and make the beam inverted from the surface of the moon light. The sun takes place in outer space accurate counts. This means that the Earth's orbit around the specific sun and accurately, any difference in the ground path will lead to sudden changes in temperature, structure and atmosphere, and disasters occur to some extent for the Aiken then the survival of life ability of God alone made the hot sun mercy and warmer and a source of energy, where the temperature position about (8-40) x 10 absolute degree (shroud) and temperature range to fall until it reaches the surface to an absolute 5762 (shroud)
Use of solar energy:
Human benefited from the foot of the solar radiation energy directly in many applications Such as drying agricultural crops and heat homes as used in other areas contained in the books of historical sciences has burned Archimedes navy Roman in the War in 212 BC by solar radiation, focus on the ships enemies by hundreds of metal shields.
In the Babylonian era women were priests who use verse gold polished like Maria concentration of solar radiation to get a shot. He also likes Chernhos and Suez and Lavoisier and Mochoc, Ericsson, Harding scientists and others using solar energy in refractory materials and cooking water and generate steam distillation of air and water heating. As established at the beginning of this century, the first international station for irrigation mediated by solar energy has been working for five hours a day and that in Maadi near Cairo.
I've tried the human long ago to take advantage of solar energy and exploitation but as far as a few and limited With the great development of technical and scientific progress reached by human opened up new scientific horizons in the exploitation of the field of Solar energy.
And also said the advantage of solar energy compared with other energy sources, including the following: -
The used the technique remains relatively simple and uncomplicated compared with the technique used in other energy sources.
Providing environmental safety factor where solar energy is clean energy does not pollute the air and leave droppings that gives a special status in this area, especially in the next century.
Solar energy conversion:
Solar energy can be converted to electrical energy and geothermal energy through the mechanisms of the photoelectric conversion and thermal conversion of solar energy,
and is intended transfer photovoltaic conversion of solar radiation or scan directly into electrical energy mediated by solar cells (PV), and, as is well known, there are some materials that the process of photoelectric conversion called suspicion conductors such as silicon and germanium, and others.
The discovery of this phenomenon by some physicists in the late nineteenth century, where they found that light can edit the electrons of certain metals also knew that blue light has a greater capacity than light yellow to liberate electrons and so on. Einstein was awarded the Nobel Prize in 1921 for being able to explain this phenomenon.
The many models of the solar cell manufacturing can produce electricity in a scientific manner and is characterized by solar cells that it does not include parts or moving parts, it does not consume fuel and air pollution and a long life and do not require very little maintenance. And achieved the best use of this technology under the unit of solar radiation applications (solar module), ie, without concentrates or lenses and lighting so it can be installed on the roofs of buildings utilized in the production of electricity is estimated normally efficiency of about 20% and the remainder can be utilized to provide heat for heating and water heating. Solar cells are also used in the operation of various communication system and road lighting and water pumping facilities and others. The thermal conversion of solar energy depends on the conversion of solar radiation into heat energy through the complexes (dishes), solar thermal and materials.
If dark body color and isolated exposure to solar radiation, it absorbs radiation and temperature rise.
Learned from this heat in the heating, cooling and water heating and electricity generation and others.
The most prevalent in the field of thermal conversion of solar energy, solar water heaters are the applications.
Followed by the most important solar dryers that are frequently used in the drying of some crops such as dates and others can also take advantage of the thermal energy in cooking, as there is research going on in this area for the production of equipment for cooking operate inside the house instead of incurring hardship to sit under the sun during cooking.
Although solar energy has taken occupy an important place within the alternatives related to renewable energy, but the extent to which they linked to the presence of sunlight throughout the time of use like conventional energy. And it seems to be required of techniques after the technology and the development of electric and thermal conversion of solar energy is that energy storage technology for use during the period of covering of solar radiation. There are several ways to store solar energy include thermal storage electric and mechanical, chemical and magnetic.
Storage research is needed Solar Energy of the most important areas of development in Solar Energy applications and spread over a wide range, where solar power, although they are available only It is not at hand, not free in the sense concept.
The real price equipment used to convert the electromagnetic energy into electrical or thermal energy. As well as the store if necessary.
Although currently these costs outweigh the cost of traditional energy production, but they do not give enough picture of the future because they are on the decline, thanks to the continuous ongoing and future research.
Solar systems for electricity generation:
Home System
Solar cells with low price and continuous rise in electricity prices
And oil, it is time to renew and independence in the power source.
Lighting systems
To avoid electrical wires and ugliness, and to provide the infrastructure cost, and to contribute to a clean environment, the better for your use
Solar systems for its simplicity and lack of seriousness.
Communications
When it is the perfect choice for the broadcast station is a mountain site or Relay
In an isolated area, there is no substitute for solar energy to avoid the maintenance and operating costs.
Agricultural systems
If the lack of electricity provides a barrier to the completion of your goals in the agricultural project, or the fact that the region is far from the source of electricity, the solar energy is the first choice and front.
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