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There are mainly two types of evacuated tube solar collectors.
All glass vacuum tube collectors look like long thermos bottle liners; all glass vacuum tubes comprise glass tubes (outer tubes), vacuum interlayer and inner glass tube.
Solar Energy radiation per meters outer glass tubes to heat water in the vacuum tubes. Since cold water has bigger specific gravity and hot water has smaller specific gravity, cold water flow downwards and hot water would flow upwards in the vacuum tubes, gradually elevating water temperatures in the water tank.
The black part on the outer walls of inner tubes is selective absorption coating, also known as films, which serve as medium for light heat conversion in vacuum tubes. Suns rays irradiate upon the films via outer glass tubes. The films absorb the visible light and near infrared rays of suns rays to amass energy, translate light energy into heat energy, thus keep elevating water temperatures in the inner tubes. The selective absorption coating, made of AI-N/AI, is currently the most widely used, capable of absorbing 93% solar energy and reflecting 6%.
A vacuum interlayer is put between the outer tube and the inner tube, for the sake of reducing heat loss, preserving heat, and thus promoting thermal collection efficiency. The structures of all-glass vacuum tubes are fairly simple and production technologies are fairly mature, making it easy for plants to start the business.
Streamline outer design elegance and luxurious. Import 55MM thick polyurethane foam insulation, heat preservation over 72 hours Advance argon are welding technology Ensure non-leakage Scientific rated aperture area and tank volume, ensure perfect performance both in the South and in the North. Semi-conductor heating booster, fast heating, 10 years using life.
As the name implies the solar flat plate collector has a surface exposed to the sun in the shape of flat plate. A flat plate solar heat collector comprises of an absorber plate transparent cover, isolation layer and outer covering.
After penetrating the transparent cover, suns rays are projected on the absorber plate. The absorber plate goes on to absorb solar energy, converse it into heat energy, and pass the heat energy to the heat transfer medium inside the tubes. The temperature of the heat transfer medium rises and cycles. The absorber plate is normally made f copper. In order to better absorb solar energy, the absorber plate is plated with a coating. The German TINOX coating could absorb 95% of solar energy and reflects only 5% solar energy.
Soltech has introduced low wattage light bulbs and homelight luminaries which is of great help to solar home lighting System because of less power consumption which in turn reduce the battery and SPV requirement thereby, reducing the total system cost. Also, the frequent replacement of CFL is eliminated as LED lights have a very long life.
A solar lantern is a lighting system consisting of a lamp, battery and electronics, all placed in a suitable housing, made of metal, plastic or fiber glass, and a PV module. The battery is charged by electricity generated through the PV module. The lantern is basically a portable lighting device suitable for either indoor or outdoor lighting, covering a full range of 360 degrees. A LED based solar lantern system aims at providing solar electricity for operating led lights for specified hours of operation per day. It lights more than a kerosene lamp and leaves no carbon emissions.
We offer solar portable power packs for a wide range of applications. These products are available in different capacities to meet various portable power requirements. They are highly durable, efficient and have a great performance.
Advantages
Soltech has a wide range of energy efficient LED Solar Streetlights and AC Streetlights. All the models use LED Drivers of latest state of art technology which gives a very high efficiency and PFC. Soltech streetlights are micro controller controlled which enables automatic on/off and dimming of streetlights. Soltech streetlights have excellent thermal management which results in longer life of LEDs. Our fixtures are uniquely designed to transfer the heat from LED to the atmosphere at very fast rate which enables to keep the junction temperature at minimum. Soltech streetlight models are well designed to be of IP 65 rating apart from being aesthetically beautiful.
Solar street light uses solar energy as an energy source. Solar Lighting can be used for urban parks, Highways, roads and lawn lighting
Soltech has developed a range of standard Off-Grid Modules & Systems for stand-alone and Off-Grid applications. The components are best chosen to ensure reaching the highest qualitative performance of the system. All products are subject to a continuous optimization process and very stringent quality checks. Additionally to our standard portfolio, our team of experienced engineers can develop all PV systems based upon your specific requirements.
Photovoltaic involves the direct generation of electricity from light by using a semi-conductor material which can be adapted to release electrons.
The most important parts of a PV system are the cells which form the basic building blocks, the modules, which bring together large numbers of cells into a unit, and, in some situations, the inverters used to convert the electricity generated into a form suitable for everyday use.
All PV cells have at least two layers of semi-conductors, one positively charged and one negatively charged. When light shines on the semi-conductor, the electric field across the junction between these two layers causes electricity to flow, generating DC current. The greater the intensity of the light, the greater the flow of electricity
A photovoltaic system does not need bright sunlight in order to operate. It also generates electricity on cloudy days, with its energy output proportionate to the density of the clouds.
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