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首页> 外文期刊>Journal of Energy Resources Technology >A New Vascular System Highly Efficient in the Storage and Transport of Healing Agent for Self-Healing Wind Turbine Blades
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A New Vascular System Highly Efficient in the Storage and Transport of Healing Agent for Self-Healing Wind Turbine Blades

机译：新型高效修复和修复自愈式风力涡轮机叶片的修复剂的血管系统

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Self-healing wind turbine blades offer a substantial offset for costly blade repairs and failures. We discuss the efforts made to optimize the self-healing properties of wind turbine blades and provide a new system to maximize this offset. Copper wire coated by paraffin wax was embedded into fiber-reinforced polymer (FRP) samples incorporated with Grubbs' first-generation catalyst. The wires were extracted from cured samples to create cavities that were then injected with the healing agent, dicyclopentadiene (DCPD). Upon sample failure, the DCPD and catalyst react to form a thermosetting polymer to heal any crack propagation. Three-point bending flexural tests were performed to obtain the maximum flexural strengths of the FRP samples before and after recovery. Using those results, a hierarchy of various vascular network configurations was derived. To evaluate the healing system's effect in a real-life application, a prototype wind turbine was fabricated and wind tunnel testing was conducted. Using ultraviolet (UV) dye, storage and transport processes of the healing agent were observed. After 24 h of curing time, Raman spectroscopy was performed. The UV dye showed dispersion into the failure zone, and the Raman spectra showed the DCPD was polymerized to polydicyclopentadiene (PDCPD). Both the flexural and wind tunnel test samples were able to heal successfully, proving the validity of the process.
机译：自修复的风力涡轮机叶片可为昂贵的叶片修理和故障提供可观的补偿。我们讨论了为优化风力涡轮机叶片的自愈性能而做出的努力，并提供了使这种偏移最大化的新系统。将石蜡包衣的铜线嵌入与Grubbs第一代催化剂结合的纤维增强聚合物（FRP）样品中。从固化的样品中提取金属丝以创建空腔，然后将其注入固化剂二环戊二烯（DCPD）。样品失效后，DCPD和催化剂反应形成热固性聚合物，以治愈任何裂纹扩展。进行了三点弯曲挠曲测试，以获取恢复前和恢复后FRP样品的最大挠曲强度。使用这些结果，得出了各种血管网络配置的层次结构。为了评估修复系统在实际应用中的效果，制造了原型风力涡轮机并进行了风洞测试。使用紫外线（UV）染料，观察到了愈合剂的储存和运输过程。固化24小时后，进行拉曼光谱分析。 UV染料显示分散到破坏区域，拉曼光谱显示DCPD聚合成聚二环戊二烯（PDCPD）。弯曲和风洞测试样品都能成功治愈，证明了该过程的有效性。

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