The Belgian-Dutch Research Group has introduced a new type of noise-protective barrier with integrated solar panels, which solves two topical tasks at once: reduces noise from transport and produces electricity. Such a payback barrier from 6 to 10 years is promising for densely populated areas and highways, where there is a limited place for the installation of traditional solar panels.
Developed in zigzag form, the barrier can be used along roads, roadways or even on the facades of buildings. Scientists say that thanks to this design, photovoltaic panels are optimally oriented to reduce the reflections that can interfere with drivers.
During the tests, the research group created a 4 × 4 meter-size demonstration sample, oriented south-south-west, with the angles of tilt of panels 35-50 degrees. Such a configuration allows to reach an annual energy production up to 941 kWh per angle of 35 degrees and up to 1066 kWh per angle of 50 degrees, which provides higher energy efficiency in the summer months due to reduced shading from the upper panels.
The optimal slope for efficient energy production and noise decrease, as shown by the analysis, is 20-40 degrees, with special losses in the energy output not observed even with a significant variation of the angle up to 80 degrees.
To ensure efficient noise absorption, the material from Rockwool is built into the barrier design, which allows you to effectively reduce noise from transport, creating more comfortable living conditions for residents of the surrounding areas. Additionally, the barrier is equipped with Fiber Bragg Gracing sensors for accurate system temperature monitoring and efficiency.
According to the life cycle (LCA), the cost of the barrier pays off from 6 to 10 years, which is an economically feasible indicator in view of the life of the installation. The low CO₂ emissions are also calculated, which makes this solution significant in terms of sustainable development of urban zones.
The new photoelectric barrier offers a modern approach to environmental and energy needs for urban areas, combining efficient energy saving and reducing noise pollution - two important components for creating an environmentally friendly and comfortable urban infrastructure.
