Produkt auf Lager: Lieferung innerhalb 1 - 5 Werktage
Solar Thermos Flask with Vacuum Glass Tube
Boil water purely with the power of the sun
The sun's rays are focused by mirrors onto a vacuum glass tube
Water can be poured into the tube, just like with a normal thermos flask.
The vacuum tube is a double-walled glass tube, similar to a thermos bottle, which insulates and traps heat inside the tube.
In good sunshine, the water can be heated in 20-30 minutes and brought to 100 degrees Celsius, so that it boils, within approx. 1 hour.
It is a handy product that is lightweight, portable, easy to set up and easy to use.
The water stays warm in the thermos flask for a long time.
With this solar thermos flask, you can heat and boil water purely with the power of the sun and without using electrical energy or gas.
The solar thermos flask works on the principle that reflectors concentrate the sun's heat rays onto the vacuum glass tube. The vacuum glass tube is a double-walled glass tube, with a vacuum or negative pressure inside, providing strong insulation, similar to a thermos flask. Water is filled into the tube and heats up when the reflectors are unfolded and aimed at the sun.
The inside of the vacuum glass tube is black and the outside is transparent. This allows heat radiation to penetrate unhindered to the inside of the glass tube, where it releases heat to the black material. Due to the vacuum insulation, the heat is now retained inside and can only escape very slowly. With continuous exposure, the temperature inside continuously rises over time. This principle makes it possible to reach temperatures of just over 100 °C within approx. 60 minutes, with a relatively small reflection area and ideal sunshine.
