Founded in 1968, Three Sinha, a household name in Sri Lanka, has an impressive name in Sri Lanka, has an impressive 40-years legacy of partnership with our customers, solving their toughest problems in the steal building industry. We are proud of our reputation as a solution and as a solution provider and as an innovator and our corporate culture is based on dedication, respect, and continuous improvement. We have ventured and our corporate culture is based on dedication, respect, and continuous improvement. We have ventured in to diverse areas in the construction industry such as steel Building and Roofing, Roller Doors and Roller Shutters, Steel and Aluminium Fabrications, Stainless Steel Railings etc. At Three Sinha, we have a clear vision for the future and understand how to manage the changes necessary to reach it. Our goal is to provide customers with the most convenient and co effective source for basic, high quality pre-engineered and pre-fabricated steel buildings and related construction products. We developed or acquire the relevant information, engineering, know how, state-of-the-art manufacturing techniques and delivery systems in an effective and efficient manner continuously. Our Success is measured by how well we satisfy our customers’ needs, and their success.
Solar PV systems
Every hour, enough photons impact our planet to theoretically satisfy global energy needs for an entire year. Solar technology is improving and costs are dropping rapidly, though, so our ability to harness the sun’s abundance of energy is on the rise. In fact, a report from the International Energy Agency indicates that solar energy could become the largest global source of electricity by 2050. In the coming years, we will all be enjoying the benefits of solar-generated electricity in one way or another.
When sunlight hits solar cells, electrons are shaken free and move around. Electrons are the negatively charged particles that sit around the nucleus of an atom (the nucleus consists of protons and neutrons). An electric current is simply the movement or flow of electrons in the same direction. A bolt of lightning, for example, is a sudden surge of electrons across a build-up of charge within clouds, or between clouds and the ground.
If you place a group of these PV cells together in a panel, and install a number of panels side by side, you can create a flow of electrons and DC electricity. The electricity used in households, however, is AC 240 volts. Therefore a box called a solar inverter – usually no bigger than your average shopping basket – is used to convert the DC electricity to AC so it can be used immediately by occupants and the electricity grid.
Hot Water systems
Unlike fossil fuels, solar energy is available to a practically unlimited extent, it’s carbon neutral and free of charge. Modern heating systems can be combined with evacuated vacuum tubes, making solar heating systems available for hot water heating.
The use of solar radiation as heat energy is known as solar thermal heating. This is not to be confused with photovoltaics, which is the production of electricity using sunlight. The great opportunities of the use of solar energy have long been recognised: Our tried and tested technology has proven itself over many years.
The benefits of solar heating
Endless amounts of energy, free of charge
No CO2 emissions during operation
Cost savings: up to 60% less energy to heat water, up to 35% less energy for space heating
Reduced consumption of fossil fuels
Solar thermal systems can be integrated into existing systems
Modern systems work efficiently even in winter
Evacuated vaccum tube collectors – Highest solar yields from the tube
The functional principle of the evacuated tube collector is the same as for flat-plate collectors. They as well absorb the solar radiation via absorbers and then transfer it in form of thermal energy to a fluid.
However, in contrast to flat-plate collectors, the evacuated vaccum tube collector utilises the excellent insulation capacity of a vacuum. That’s why they are called evacuated vaccum or vacuum tube collectors. Heat losses are almost completely avoided thanks to the vacuum in the glass tube. In addition, a mirror is mounted below the individual tubes to focus the sunlight towards the absorber pipe. All in all, the evacuated vaccum tube collectors are significantly more efficient than flat-plate collectors.
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