Photovoltaic inverter Generally, the process of converting AC electrical energy...
Tempered glass
With the rapid development of renewable energy, solar energy, as a clean and renewable form of energy, has been more and more widely used. In the solar module, tempered glass as an important part, not only affects the performance and service life of the module, but also determines the overall efficiency of the solar power generation system to a certain extent. This paper will deeply discuss the role, function and related technical requirements of tempered glass in solar modules.
the role of tempered glass
Tempered glass is specially treated glass, and its impact resistance and temperature change resistance are far more than ordinary glass. In solar modules, tempered glass mainly has the following roles:
Protection of solar cells: tempered glass can effectively protect the following solar cells from the influence of the external environment, including wind, rain, hail, sand and other physical damage.
Enhanced light transmittance: Tempered glass with high light transmittance can maximize sunlight penetration, reduce light loss, and improve photoelectric conversion efficiency. The transmittance of high-quality photovoltaic glass is usually above 90%.
Ultraviolet and corrosion resistance: tempered glass has a good blocking effect on ultraviolet light, which can prevent the degradation of ultraviolet light on the battery. At the same time, it also has strong corrosion resistance and can resist the erosion of chemical substances in the environment.
Maintenance of structural integrity: Tempered glass, due to its high strength and toughness, is able to maintain the overall structure of the solar module under extreme weather conditions, avoiding systemic failure due to damage.
the function of tempered glass
Tempered glass is more than just a simple protective layer, it has a variety of functions in solar modules:
Optical performance: The optical properties inside the tempered glass are designed to optimize the propagation of light, ensuring maximum light energy into the cell and improving power generation efficiency.
Thermal management: The low thermal conductivity of tempered glass helps to control the temperature of the component, thereby reducing the loss of performance due to temperature changes.
Visual beauty: high transparency and low reflectivity make the appearance of solar modules more beautiful, suitable for the integration of various built environments.
tempered glass technical requirements
In the production and use of solar modules, tempered glass needs to meet a series of technical requirements to ensure its performance and safety:
Strength requirements: The bending strength of tempered glass should reach a certain standard, usually need to have at least 3 times the strength of ordinary glass, and remain stable under static and dynamic load.
Thickness and size: The thickness of the glass is usually between 3mm and 6mm, depending on the design and power output requirements of the solar module. Glass dimensions should conform to industry standards to ensure compatibility with the entire component.
Transmittance: The transmittance of solar tempered glass should be greater than 90%, effectively reducing light loss to improve the overall power generation efficiency.
Weather resistance test: Tempered glass needs to undergo a number of weather resistance tests, including thermal shock, ultraviolet aging, etc., to ensure its stability and durability under various climatic conditions.
Surface treatment: The surface should have good hydrophobic performance and self-cleaning properties to reduce the impact of dust on light transmittance and maintain good photoelectric conversion efficiency.
Summary
As an integral part of solar modules, tempered glass not only provides basic protection functions, but also plays an important role in optical performance, thermal management and aesthetics. Ensuring that it meets the relevant technical requirements not only helps to improve the overall efficiency of solar modules, but also extends their service life. In the future development, tempered glass will continue to innovate with the progress of solar technology to adapt to the growing market demand.
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