What is the length of the solar vacuum tube, which is good
The optimum length of the vacuum tube is generally based on the inner tube water capacity and film heat absorption area to be the best ratio in the shortest possible time heating vacuum pipe of the water, and timely heat, the vacuum tube heating water to the water tank. At present, the market is more than 1.8 meters long, as well as the length of 2.1 meters, but also has a length of 1.6 meters (relatively small), before the length of the 1.4 meter has been eliminated. If the vacuum tube vertical insertion use, 2.1 meters long heating fast, change the amount of hot water. Because the heat transfer of hot water and cold water in the vacuum tube is through the natural siphon principle, the hot water goes up, the cold water sinks, and the vacuum tube is inserted vertically.
No difference, it is speculation, you have to know that good, with a thermometer on the
Solar vacuum tube has 1 meters, 2 meters, 1 meters, 1 meters, the length of the tube is different, the effect of heat absorption is different on the 8 of the. Under the same conditions, the heat absorption efficiency of pipe length is higher. It is best to choose the vacuum tube when the vacuum tube is selected.
