There are two types of injection fluids for flat panel solar water heaters: thermal fluid and antifreeze.
Thermal fluid: Its main function is to transfer and exchange heat from the sensor to the heat storage device.
Antifreeze: Its main function is to prevent water in water pipes and water tanks from freezing at low temperatures, so that it can be used normally.
Do flat panel solar water heaters use electricity? How does water flow between the water tank and the solar panels? Should I add another pump? THANKS!
1. Use special cleaning fluid to clean the panel. Ordinary tap water or well water cannot be used to wash and clean the panels, because the water contains many impurities which will adhere to the surface of the battery component glass panels and reduce the production efficiencysolar energy.
2. When cleaning photovoltaic panels, you can wipe them hard with a windshield wiper while rinsing them with water to remove them. Cleaning time in winter is 9:00 a.m. every day when there is sufficient sunlight. The cleaning end time is determined based on the outside temperature to avoid freezing due to low temperatures and dirt accumulation.
3. When cleaning photovoltaic panels, do not step on the panels, use metal or other hard objects to scrape off difficult-to-remove dirt, and do not spray cold water on the panels while they are in place . very hot. If there are oil stains and other hard-to-clean areas on the surface, use the above method to clean, and then use cleaning fluid or industrial alcohol to wipe the area to clean. achieve the cleaning effect.
To briefly explain,Solar water heaters are generally electrically heated and do not use electricity when lighting conditions are good. In case of insufficient light and insufficient water temperature, the electric heating will work.
As for the way of circulation, there is physical circulation by thermosiphon, or mechanical circulation by a circulation pump. Typically, hot water systems require a water pump. Otherwise the effect will not be good.