The lighting area of 1800*16 and 1600*18 models is the same, that is, the power of absorbing sunlight to generate hot water is the same, but the length of the water tank of 18 pieces is longer than that of 16 pieces, that is, the length of the water tank. The capacity must be larger. If the price is the same, I would still mind choosing the 18 tube one.
What is the illumination area of a single tube of Φ58×1800 all-glass solar collector tube? What is the difference between effective area and nominal area? Is there a standard base?
The optimal length of the vacuum tube is generally based on the optimal ratio between the water capacity of the inner tube and the heat absorption area of the film layer. It can heat the water in the vacuum tube. as soon as possible and carry out timely heat exchange to convert the vacuum tube into a vacuum tube.The internally heated water is transferred to the water tank. At present, the most commonly used ones on the market are 1.8 meters long, there are also 2.1 meters long, and there are also 1.6 meters long (relatively few), the previous 1.4 meters
Solar energy, collector tube\length
The optimal length of the vacuum tube is generally based on the optimal ratio between the water capacity of the inner tube and the heat absorption area of the film layer. It can heat the water inside. the vacuum tube as soon as possible and carry out timely heat exchange to heat the water in the vacuum tube. Change the water in the tank. At present, the most used ones on the market are 1.8 meters long, there are also 2.1 meters long, and there are also 1.6 meters long (relatively few). The previous 1.4 meters
The national standard includes heat). collection area, absorptionn of heat Concepts such as body area and collector area
Heat absorber area: Φ58×1800. The area of the heat absorber is 0.260 square meters, which is defined as the area of the inner glass. tube. (GB/T17049-"All-glass vacuum solar collection tube")
The nominal name on the product is generally the heat collection area. The heat collection zone (contour lighting zone): is defined as. the amount of sunlight projected onto the heat collector. This area is also related to the installation spacing of the vacuum tubes, the length of the vacuum tubes inserted into the water tank (or collector), etc. Generally, the area of each tube is between 0.12 and 0.14 square meters. (GB/T19141-2003 “Technical conditions for domestic solar hot water systems”)
In actual design, many use the collector area, which refers tothe use of GB/T50364-2005 “Solar energy application technology”. Hot water systems for civil buildings" The surface of the sensor defined in the "Specifications" refers to the installation area of the sensor.
The lighting area on which you have installed questions does not have this concept in the national standard. The effective area should literally refer to the heat collection area, and the rated heat collection area on the equipment is also the heat collection area. /p>