In the past, if you wanted to use hot water, you had to burn it. Not only was it time consuming but also less in quantity. If a family wanted to take a bath, it would have to wait. With the popularity of solar energy, people are becoming more and more simple in the use of hot water. And, sunshine is still free. Technology has been improving, and the emergence of flat-panel solar water heaters has brought about a better experience. Today, we will introduce the working principle and installation and maintenance of the flat panel solar energy.
How does a flat-plate solar water heater work in the sun?
Ordinary solar water heaters directly transfer the absorbed “sunlight†to water through a vacuum tube, while the flat panel solar energy uses copper tubes to indirectly convert heat into water. The common high point of thermal efficiency is that many of the flat plates are split and double-looped to add circulation pumps. Therefore, the use of flat-panel solar water quality and life are generally better.
The flat panel solar collector absorbs thermal energy and conducts thermal energy into the heat exchange medium in the collector. As the temperature of the heat-conducting medium increases, the heated liquid is heated in the collector after it is pumped into the heat exchanger of the water storage tank. Here, heat energy is transferred to the water and the heat transfer medium is gradually cooled. The cooled liquid is pushed back into the collector. The cooled solution is once again heated in the collector plate and recycled to the heat exchanger to transfer the heat energy to the water in the storage tank. This process is repeated until all the water in the tank is heated.
Self-resistance is the main resistance of flat solar loops and collector piping systems. When the temperature of the medium rises, the resistance along the way becomes smaller due to the decrease of the kinematic viscosity, and the influence of the local resistance becomes greater. In a certain range, when the main pipe diameter is not changed, increasing the diameter of the branch pipe will not only reduce the resistance along the way, but also reduce the local resistance. Generally, the hydraulic radius of the branch pipe should be more than 10mm. When the main pipe diameter reaches a certain value, it is of little significance to increase the main pipe diameter to reduce the system resistance. Flat-plate solar water heater top-water type process, domestic solar water heaters and flat panel split solar water is divided into falling water type and top water type. Ordinary solar water heaters are used under water without being affected by tap water supply. Their disadvantages are that the water temperature is low and high after use, and if they are not well handled, they can easily cause sudden water shortage. Flat-plate split solar energy is the top-water method. The water temperature is high and low first, easy to grasp, and the user can easily adapt. However, tap water is required to maintain the water supply capacity. Under the condition that the tap water is guaranteed, it is recommended to use the top water method.
Second, tell me why use flat-plate solar water heater
Flat-panel solar water heaters installed on the roof or outside the house, will not take up any indoor space, and solar energy is free, do not need to use coal, electricity, natural gas and other resources, save the family electricity, gas costs start, and good economic returns. Therefore, solar water heaters are currently widely used in homes.
Third, flat-panel solar water heater - a good "this warm man"
The wind, the sun, the rain, the snow and the ice... what a harsh environment this is, and the flat-panel solar water heater has always silently given us “light and heatâ€. We have no reason why we should not properly maintain it. Moreover, if we pay a little attention when we use it, clever arrangements, use of the water time and the amount of water will effectively increase the use efficiency of the water heater, and will have a multiplier effect. Ultimately, we still benefit.
At the same time, if we can properly maintain flat-panel solar water heaters, we can also effectively extend the service life of water heaters. After the water heater is installed and fixed, non-professionals should not easily move or uninstall so as not to damage key components. There should be no sundries around the water heater to eliminate the danger of hitting the vacuum tube. Regularly inspect the exhaust vents to ensure unimpeded access to avoid swelling or convulsions in the tank.
Flat-panel solar water heaters are simply "warm men" in people's home life. Work hard and work hard; hardship, never complain. After understanding the working principle of flat-plate solar water heater, I hope you can treat it better.
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