This Design uses an all-glass evacuated solar collector tube as the heat-absorption element. The high
vacuum degree of the clearance between the outer and inner tube can reduce heat emissions to a very low level, which is causes by convection and conduction.
All-glass evacuated tubes transfer sun energy into heat absorption and low emittance rates of layer films. Due to the different densities between hot and cold water, a cycle of ascending hot water and descending cold water is created. Through this natural circulation, the water in the tank will be heated. |