Solar Vacuum Tube; Its Functioning & Usage

Solar vacuum tubes are a new-age addition to the solar water heaters, making it highly efficient and much more long-lasting than ever. The solar vacuum tubes work much more efficiently than the normal solar collector, with its complex structure and functioning.

The principle of the vacuum tube is similar to that of the vacuum tube inside a thermo flask, with its double-layered system and the vacuum layer sandwiched between the two. The vacuum tube within the solar heater consists, therefore, of two glass layers making a sandwich covering for the ‘vacuum’ layer confined within them. 

The borosilicate layer forms the outer panel of the solar vacuum tube and allows light energy from the sun to pass through and through. The other glass layer has a special coating to absorb the sun’s heat energy, thereby producing enough energy required to heat up the homes and water.

What makes the solar water heaters more efficient and long-lasting are these excellent solar vacuum tubes and the second layer of the tube with its specialized coating. Unless the coating is efficient and high-grade, one cannot expect the heaters to perform to its regular standards.

The coating on the second glass tube converts the short-wave radiations of the sub into heat radiation, which is long waved, and thereby produce the energy required. The solar vacuum tube traps the sun’s energy and utilizes almost 94% of the energy, making it effective.

Also, the solar radiation which is absorbed transfers the energy to the liquid inside the tube and then heats it up to the required temperature. When the water is heated up, it rises into the top collection chamber and the cold water gets filled up again on the vacated chamber. 

The use of solar vacuum tubes, therefore, has changed the way the solar water heaters work. Not only are these tubes highly predictable and presents a methodical working, but it also saves on energy and maintenance cost in the long run.

For more info contact solar water heater dubai or call us at +971 4 252 2966