高層ビル向け小型風力エネルギーシステムの開発：最近の進歩、課題、将来展望のレビュー

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:Provides a comprehensive overview of small wind for buildings, identifying research gaps and future directions.

🏢実務担当者:Offers insights into feasibility and design considerations for building-integrated wind systems.

🏛政策担当者:Highlights the potential and limitations of urban wind energy, informing supportive policies.

The increasing demand for electricity in densely populated urban areas has created a need for decentralized renewable-energy technologies that can be integrated into buildings. Small wind energy systems represent a potential supplementary source of electricity for multi-storied buildings, particularly where rooftop and façade-level wind resources can be effectively exploited. However, the wind environment around buildings is substantially different from that of open terrain. Building geometry, surrounding structures, atmospheric boundary-layer effects, flow separation, recirculation, turbulence, wind-direction variability, and rooftop-edge effects can significantly influence turbine performance. This review examines the development of small wind energy systems for multi-storied buildings, with particular emphasis on urban wind-resource assessment, turbine selection, aerodynamic design, building–turbine interaction, computational fluid dynamics (CFD), structural considerations, electrical integration, energy storage, economic feasibility, and environmental constraints. Horizontal-axis wind turbines (HAWTs), vertical-axis wind turbines (VAWTs), Savonius and Darrieus configurations, hybrid turbines, and building-integrated concepts are compared from the perspective of urban applications. The literature indicates that VAWTs can offer advantages in highly variable and multidirectional urban winds, while carefully positioned HAWTs can achieve higher aerodynamic efficiency under suitable flow conditions. Accurate site-specific wind assessment using field measurements, CFD, wind-tunnel testing, and statistical modelling is essential because relatively small errors in wind-speed estimation can produce substantial errors in predicted energy production. The review further identifies the importance of structural vibration, noise, safety, maintenance, power electronics, battery storage, and grid interaction. A conceptual framework for developing a small wind energy system for multi-storied buildings is proposed. Future research should focus on validated urban wind maps, low-speed turbine optimization, building-integrated designs, hybrid solar–wind systems, intelligent control, digital twins, and long-term field testing. The review concludes that small wind systems should generally be considered as complementary rather than standalone energy sources for multi-storied buildings, with successful deployment depending primarily on appropriate site selection and integration with the building structure and electrical system.

• Zenodo https://zenodo.org/records/22158773first seen 2026-09-01 04:35:24