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Solar water heaters are essentially a photothermal converter. The working principle of solar water heaters is essentially the principle of heat absorption of solar water heaters.
Simply speaking, the integrated solar water heater is based on the principle of thermosiphon. Solar radiation passes through the glass cover plate (or glass tube) of the water heater, and is absorbed by the heat collector plate and then transferred to the water in the heat absorption tube along the fin and tube wall. After the heat absorption of the water in the absorption tube of the solar water heater, the temperature rises, the specific gravity decreases and rises, forming an upward power, and the solar water heater constitutes a thermosiphon system. As the hot water continues to move up and stored in the upper part of the storage tank, while the lower circulation pipe continues to supplement the lower temperature of the water, so the cycle is repeated, the solar water heater eventually the whole tank of water is raised to a certain temperature. In short, the structure of the integrated solar water heater is like an elongated warm bottle, there is a vacuum between the inner and outer layers, and the surface of the inner glass tube is coated with a spectral selective absorption coating using a special process to maximize the absorption of solar radiation. In the heat storage tank and glass vacuum tube are full of water, vacuum tube under the action of the sun, let the water in the tube slowly heated, because the proportion of hot water decreases, it will float to the water tank, and because the cold water in the water tank is significant, so it sinks to the vacuum tube, then the water in the vacuum tube is constantly heated, and the cold water in the water tank constantly forms a natural cycle of temperature difference. Under the appropriate circulation process, the water of the entire storage tank is heated to a certain temperature, coupled with the thermal insulation of the tank, so that the water temperature can maintain its temperature for a long time.
Solar water heaters are essentially a photothermal converter. The working principle of solar water heaters is essentially the principle of heat absorption of solar water heaters.
Simply speaking, the integrated solar water heater is based on the principle of thermosiphon. Solar radiation passes through the glass cover plate (or glass tube) of the water heater, and is absorbed by the heat collector plate and then transferred to the water in the heat absorption tube along the fin and tube wall. After the heat absorption of the water in the absorption tube of the solar water heater, the temperature rises, the specific gravity decreases and rises, forming an upward power, and the solar water heater constitutes a thermosiphon system. As the hot water continues to move up and stored in the upper part of the storage tank, while the lower circulation pipe continues to supplement the lower temperature of the water, so the cycle is repeated, the solar water heater eventually the whole tank of water is raised to a certain temperature. In short, the structure of the integrated solar water heater is like an elongated warm bottle, there is a vacuum between the inner and outer layers, and the surface of the inner glass tube is coated with a spectral selective absorption coating using a special process to maximize the absorption of solar radiation. In the heat storage tank and glass vacuum tube are full of water, vacuum tube under the action of the sun, let the water in the tube slowly heated, because the proportion of hot water decreases, it will float to the water tank, and because the cold water in the water tank is significant, so it sinks to the vacuum tube, then the water in the vacuum tube is constantly heated, and the cold water in the water tank constantly forms a natural cycle of temperature difference. Under the appropriate circulation process, the water of the entire storage tank is heated to a certain temperature, coupled with the thermal insulation of the tank, so that the water temperature can maintain its temperature for a long time.
