The solar collector acts as an engine of any solar water heater. A solar vacuum tube is the most efficient solar power production system; but was more costly than flat panel system. With the immense popularity of solar energy and modern manufacturing techniques, the solar vacuum tubes cost less while ensuring the greatest return on the investment.


Working principle of SunRain solar vacuum tube collector


The working principle of solar vacuum tube is simple. It works same like a coffee thermos. A

Evacuated Solar vacuum tubes are the essential parts for every solar collector, used for the functional absorption and conversion of sunlight into utilizable energy. Mostly the evacuated Solar vacuum tube is consists of two glass tubes merged at both ends. The gap between them consists of a solar absorbing coating over the inner tube. The evacuated layer provides an exceptional insulation that facilitates in preserve over 92% of the solar energy. To mention few design features of solar vacuum

Solar vacuum tube collectors are one of the latest solar hot water technologies that are believed to be a simple and efficient form of heat source. Compared to the conventional, the solar evacuated tube collector has become more and more popular, as it reduces the supply costs, delivers high performance, good for commercial applications and proves to be reliable in cold climates too. Solar evacuated or solar vacuum tube collector offers the optimum mix or thermal performance, assures quality

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