Classification and related technologies more general use: Active solar : to use low temperature (between 35 ° C and 60 ° C) is used in homes, in medium temperature reaches 300 ° C, and high temperature reaches 2000 ° C. The latter is achieved by impinging sunlight on mirrors, which are aimed at a reflector [...]
Energy
Water pumps with solar panels
Reemplazan advantageously pumps and windmills Animal and human consumption – Irrigation Uses moderate volume The system uses an electric pump powered by photovoltaic (solar panels), which provide energy from early morning until evening. An electronic controller commands the operation of the pump according to the solar radiation and the water level in the well and [...]
Environmental issues
Windmills in La Mancha, Spain, famous since the publication of the novel Don Quixote in 1605, is a national heritage. Usually combined with power plants, leading to critics that there really is not too save carbon dioxide emissions. However, we must bear in mind that any form of energy production has the potential to cope [...]
Geothermal energy
The geothermal energy is that energy that can be obtained by harnessing the heat from inside the Earth . Geothermal comes from the Greek geo (earth) and thermos (heat), literally “heat of the Earth.” Advantages It is a source avoiding dependence on foreign energy. The waste produced is minimal and cause [...]
Environment
Green energy
“Green energy” is a term that refers A to renewable energy sources and clean. Electricity generated from renewable sources is becoming more available. By choosing renewable energy sources such consumers can support the development of clean energy that will reduce the environmental impacts associated with conventional energy generation and increase energy independence. Furthermore, when these [...]
Types of geothermal
In areas of very hot thermal waters at shallow depths, it uses heat from inside the earth. The hot water or steam can flow naturally, by pumping or pulsed flow of water and steam. The method you choose depends in each case is economically profitable. An example, in England, was “Project Hot Stone HDR” (acronym: [...]
Hot water heaters
At or below the heating screed pipes are mainly plastic or rare copper postponed. As various plastic materials are used. The most widely used plastic, the crosslinked, oxygen proof (otherwise risk of corrosion in the boiler) polyethylene (PE-X). Installation is carried out either modular, meandering or bifilar (screw design). Laying the bifilar is given by [...]
Green Technology
Energy from the Sun
About half of the energy from the sun reaches the earth’s surface. The Earth receives 174 petawatt incoming solar radiation ( insolation ) from the uppermost layer of the atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. The electromagnetic spectrum of sunlight at the [...]
Solar energy
The thermoelectric plant Gemasolar (located in Andalusia, Spain) has 19.9 MW of power and can store energy for more than 15 hours, which allows it to provide power 24 hours a day. The solar energy is the energy obtained from the use of electromagnetic radiation from the Sun. The solar radiation reaching Earth has been [...]
The methods of tidal power generation
The methods of tidal power generation means can be classified into three: Generator tidal current The tidal power generators Tidal Stream Generator (TSG initial or English) use the kinetic energy of flowing water to power turbines, similar to the wind (air movement) using wind turbines. This method is gaining popularity due to lower costs and [...]
Solar Pimp
Tidal
Tide Mill in Isla Cristina ( Huelva ). The wave energy is obtained exploiting the tide , through its connection to an alternator system can be used for the generation of electricity , thus transforming wave energy into electrical energy , a more secure form usable energy. It is a type of renewable energy , [...]
Removal of hydropower
These features make it significant in regions where there is an appropriate mix of rain, uneven terrain favorable geological and dam construction. Hydropower is obtained from the potential energy and kinetic contained in water bodies that carry the rivers, from rain and snowmelt. Water in its fall between two levels of the channel is passed [...]
Hydropower
Rotor blades in a small stream. It is called hydropower, hydropower or hydroelectricity, to that obtained from the use of energy kinetic and potential water stream, waterfalls or tides. It is a type of green energy when environmental impact is minimal and uses force without represarla water, otherwise it is considered just a form of [...]
Solar Systems
Solar photovoltaics
Description of a solar panel The photovoltaic panels are composed of numerous cells that convert light into electricity . The cells are sometimes called photovoltaic cells , the Greek ” photos “light. These cells depend on the photovoltaic effect by the light energy that produces positive and negative charges coming from two different semiconductor type, [...]
Wind Power
Wind energy is the energy obtained from the wind, ie, the kinetic energy generated by the effect of air currents, and is transmuted into other useful forms for human activities. Today, wind energy is mainly used to produce electricity using wind turbines. At the end of 2011, worldwide capacity of wind-powered generators was 238 gigawatts [...]
Natural gas
Natural gas production by country. The natural gas is one of the several important non-renewable energy sources consisting of a mixture of gases that is light oil reservoirs, dissolved or associated with oil (accumulation of marine plankton) or deposits of coal . Although its composition varies depending on the site of which is removed, is [...]
Water Supplies
Wave energy
Two of the three machines P-750, in the port of Peniche, Portugal. The wave energy or olamotriz energy is the energy that allows the production of electricity from mechanical energy generated by the movement of the waves. It is one of the types of renewable energy with more recent studies, and has huge advantages over [...]
Technology and uses of solar energy
Classification and related technologies more general use: Active solar : to use low temperature (between 35 ° C and 60 ° C) is used in homes, in medium temperature reaches 300 ° C, and high temperature reaches 2000 ° C. The latter is achieved by impinging sunlight on mirrors, which are aimed at a reflector [...]
Radiant heating
Radiant heating in an airplane hangar A radiant heating or radiation heating is a heating system whose predominant heat transfer by thermal radiation takes place. There are two fundamentally different types of construction, the high temperature radiators and the low-temperature radiator. The principle of action (heating by radiant heat energy can be) in juxtaposition to [...]
Other Recent Articles
Classification energy
Renewable sources of energy can be divided into two categories: non-polluting or clean and contaminants . Among the first: The influx of freshwater bodies to bodies of salt water: blue energy . Wind: wind power. The heat of the Earth: geothermal energy. The rivers and streams of fresh water: water power or hydropower. The seas [...]
Alternative energy
A similar concept, but not identical is the alternative energy: an alternative energy , or more precisely an alternative energy source is one that can supply the energy or current energy sources, either because of its lower polluting effect or primarily by the possibility of renewal. By this definition, some authors include nuclear energy in [...]
