Name:Ernesto Campos
Teacher:Andre Dumolin
Date: 25/11/06
Introduction
In this webquest made by me give you the with that remplace the hydrocarbons, it contaminates our planet "Earth".
Task
Aeolian the solar energy and is for my the ejores so that they are natural since I refuel this finishing, and which contaminates our environment and produces the effect conservatory.We ourself we are the causes of this in the world we did not measure our actions.
Process
The solar energy is natural therefore it is easy to produce and it is possible to be reused, is abundant you only must take rays from the sun by means of solar paddles. The sun was considered by the old tribes like a God so that it provided them of energy and sabianque without the sun does not podian to live. This classes of energies if it is used very little but because there are many solar plants nor no Aeolian plants. The countries are not many that use perola energy today solar if it is used in the plants, animals, we obtain nutrients of forms indirect of the sun by means of the plants. All the countries that are fed on plants use the solar energy, and the Aeolian energy uses it in Chile. If he is psible to improve the technology to use solar energy already cars exist that use solar energy but they are prototypes
Evaluation
Conclusion
Solar energy converted to heat in a concentrating (dish or trough parabolic) collector can be used to drive a Stirling engine. The Stirling engine is a type of heat engine which uses a sealed working gas (i.e. a closed cycle) and does not require a water supply. A solar Stirling system holds the record for converting solar energy into electricity (30 percent at 1,000 watts per square meter). [20] Such concentrating systems produce little or no power in overcast conditions and incorporate a solar tracker to point the device directly at the sun. A solar updraft tower is a relatively low-tech solar thermal power plant where air passes under a very large agricultural glass house (between 2 and 8 km in diameter), is heated by the sun and channeled upwards towards a convection tower. It then rises naturally and is used to drive turbines, which generate electricity. Energy tower An energy tower is an alternative proposal to the solar updraft tower. The energy tower is driven by spraying water at the top of the tower, evaporation of water causes a downdraft by cooling the air thereby increasing its density, driving windturbines at the bottom of the tower. It requires a hot arid climate and large quantities of water (seawater may be used for this purpose) but it does not require the large glass house of the solar updraft tower.
Direct or Indirect In general, direct solar power involves a single transformation of sunlight which results in a useable form of energy.Sunlight hits a photovoltaic cell creating electricity. 1-Sunlight warms a thermal mass. 2-Sunlight strikes a solar sail on a space craft and is converted directly into a force on the sail which causes motion of the craft. 3-Sunlight strikes a light mill and causes the vanes to rotate as mechanical energy, little practical application has yet been found for this effect. In a direct solar water heater the water heated in the collector is used in the domestic water system. 4-Sunlight which is not reflected provides direct lighting