The maximum is 100 degrees, which is the boiling point of water. Since the solar water tank is connected to the outside world, the boiled steam is discharged through the exhaust port, maintaining the water tank at atmospheric pressure.
The water temperature is generally 60 to 70 degrees Celsius. The temperature fluctuates with the weather. The temperature will be lower on cloudy days and higher on sunny days.
No, solar power generation relies on special coatings to complete the conversion of heat into electricity
The first anti-sunlight reflection layer of the coating is made of silicon oxide which only absorbs and absorbs. does not reflect, thus reducing heat loss. The second layer is a cermet layer used to absorb heat from the sun. The third layer is a metal layer with good thermal conductivity.
The total thickness of these three layers is only 100 nanometers. According to experiments, this new coating can convert 98% of the received sunlight into thermal energy, and the total efficiency of converting thermal energy into electrical energy is achieved. more than 20%.