Solar LED lighting system technologies and engineering design
The Solar LED lighting is a practical knowledge website that organically combines the design of LED solar lighting system with lighting technologies engineering application
The basic structure of VRLA battery is shown in Figure 1. It consists of positive and negative plates, separators, electrolyte, safety valve, gas plug, shell and other parts. The active material on the positive plate is lead dioxide (PbO2), and the active material on the negative plate is sponge-like pure lead (Pb). The electrolyte is…
Regarding the types of batteries, as far as the mainstream products on the market are concerned, there are four types of batteries: lead-acid batteries, nickel-cadmium (NiCd) batteries, nickel-hydrogen (NiMH) batteries and lithium-ion (Li-ion) batteries. We are here to share with you a lithium battery product recommendation website – tycorun.com. The battery can be used repeatedly, which…
Selection of solar cell module types Solar cell modules are divided into monocrystalline silicon, polycrystalline silicon, amorphous silicon and non-silicon, etc. The commercial applications are mainly monocrystalline silicon, polycrystalline silicon and amorphous silicon. The designed solar LED lighting system should use high-quality monocrystalline silicon cells. The theoretical basis is that monocrystalline silicon cells have small…
Heat island effect of solar cell modules In the design process of solar LED lighting systems, monolithic solar cells are generally not used, and solar cell modules are used in practice. A solar cell module is composed of multiple solar cells to achieve a desired voltage value. During the use of a solar cell module, if…
In the previous article “Azimuth and tilt angle of solar cell array”, the relationship between the azimuth angle, the inclination angle and the power generation is described. For the specific design of the azimuth angle and the inclination angle of a solar cell array, it should be further considered in combination with the actual situation:…
Solar energy is a clean energy, and its application is growing rapidly around the world. However, the cost of designing a solar LED lighting system is still relatively high. Judging from the current cost of solar LED lighting systems in China, the cost of solar cell components is about 60% to 70% of the total…
The previous article introduced the determination of series and parallel number of solar cell module. But in practical situations, it is necessary to revise the theoretical results considering the actual situation to obtain more correct results. (1) Reduce the output of solar cell modules by 10%. In actual operation, the output of solar cell modules…
The number of solar cell modules in series Ns The required working voltage can be obtained by connecting the solar cell modules in series according to a certain number, but the series number of the solar cell modules must be appropriate. If the number of series connection is too small, the series voltage is lower…
The daily output power of a solar cell module is related to the number of cells in series in the solar cell module. The voltage of the solar cell under sunlight will decrease with the increase of temperature, which will lead to the increase of the voltage of the solar cell module with the temperature. and…
Calculation of solar cell capacity The basic data required for solar cell capacity calculation are: (1) Determine all the load power and continuous working time, the rated working voltage of the load and whether there are special requirements. (2) Determine the geographic location of the solar cell module installation: longitude, latitude and altitude. (3) Meteorological…