Retrofitting Building Roofs with Aerodynamic Features and Solar Panels to Reduce Hurricane Damage and Enhance Eco-Friendly Energy Production
Retrofitting Building Roofs with Aerodynamic Features and Solar Panels to Reduce Hurricane Damage and Enhance Eco-Friendly Energy Production
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DOI：
10.1016/j.scs.2017.09.002
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发表时间：
2017-11
影响因子：
11.7
通讯作者：
A. Aly;Chanachock Chokwitthaya;Raymond Poche
中科院分区：
文献类型：
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作者：
A. Aly;Chanachock Chokwitthaya;Raymond Poche
低层建筑屋顶上的风致负压是造成损失和破坏社区的主要来源。涡流抑制技术可以减少建筑物上的风荷载；然而，实施一种有效的策略来减少屋顶上的风荷载，并将缓解功能本身的荷载降至最低，是一项具有挑战性的战略。本文对不同气动减振特性的性能进行了比较研究。结果表明，太阳能电池板对平顶风致上拔力有较好的减小率。与目前提出的所有缓解特性相比，翼型在减少上拔载荷方面是最有效的，并有望在这一领域进行研究。此外，这项研究还调查了风对具有不同太阳能电池板配置的山墙屋顶建筑的影响，以减少对主建筑的风致荷载，同时保持外观美观的安装，以便于广泛使用和应用。比较了计算流体力学(CFD)模拟和实验室实验得到的屋顶和太阳能电池板上的压力系数。研究表明，优化的屋顶/太阳能电池板组合除了提供环保能源外，还可以减少低层建筑的风荷载，即改善性能，特别是在预计停电的情况下。
Wind-induced negative pressure on roofs of low-rise buildings is a major source of losses and community disruption. Vortex suppression technologies may reduce wind loads on buildings; however, it is challenging to implement an effective strategy to reduce wind loads on roofs with minimal loads on the mitigation feature itself. In this paper, the performance of different aerodynamic mitigation features is investigated in a comparative study. The results show that solar panels are relatively effective in reducing wind-induced uplift forces on a flat roof. Compared with all mitigation features presented, the airfoil is the most effective in reducing uplift loads, with promises to proceeding research in this area. In addition, the study investigates wind impact on a gable roof building with different configurations of solar panels, to reduce wind-induced loads on the host building while maintaining a visually appealing installation to permit broad usage and application. Pressure coefficients on roofs and solar panels from both computational fluid dynamics (CFD) simulations and laboratory experiments are compared. The study shows that the optimal roof/solar panel combination reduces wind loads on low-rise buildings, i.e. improves the performance, in addition to providing ecofriendly energy especially when power outage is expected.