Wind turbine blades constructed from glass fiber-reinforced polymer (GFRP) laminate composites can serve for as much as 25 years. After that they find yourself in landfills — GFRP is acknowledged as hard-to-break-down. This has grow to be an actual problem for the renewable vitality trade. It’s estimated that wind turbine blades account for 10 % of Europe’s fiber-reinforced composite materials waste. Researchers declare that by 2050, wind turbine blade waste will enhance to round two million tonnes globally. With many international locations banning composite supplies from their landfills, recycling the used wind turbine blades turns into a problem that researchers all over the world are attempting to unravel.
“The purpose of reducing world greenhouse fuel emissions to shut to zero by 2050 has been voiced a number of years in the past. Since then, increasingly more international locations have been committing to the net-zero aim by investing in renewable vitality sources, together with wind vitality. Nonetheless, the recycling of the wind turbine blades, that are so long as a soccer discipline, very sturdy and embody plastic, is the primary drawback. With out a possible answer to it, we can’t say that wind vitality is absolutely sustainable and environmentally pleasant,” says Dr Samy Yousef, a researcher at Kaunas College of Know-how (KTU), School of Mechanical Engineering and Design.
Aiming to deal with this problem, the analysis group headed by Dr Yousef have made a number of experiments involving decomposing GFRP into its constituent components. Attributable to its energy, shaping simplicity and low manufacturing prices GFRP composites are used for a large number of functions — for automobile manufacturing, maritime vessels, oil and fuel manufacturing, development, sporting items and extra. Plane, wind vitality and electronics are among the many industries which use the GFRP most, with the worldwide demand growing yearly by 6 %. “GFRP composites used for a lot of industries together with wind turbine blades manufacturing are both thermoset or thermoplastic. In both case, they roughly consist solely of two elements — fiber and resin (in some circumstances with completely different micro or nanoparticle additions). As for the fibre, it often is carbon fibre or fibreglass (the latter is cheaper)” explains Dr Yousef.