Review of Diffuser Augmented Wind Turbines and development of it in Urban areas

The increasing necessity for sustainable energy alternatives and the focus on energy-conserving architectural designs have catalyzed comprehensive research initiatives directed towards the advancement of wind energy technology specifically adapted for metropolitan settings. Commercial wind turbines should operate at high speeds. But it is found that in Urban areas wind speed is low. Despite of advancements in wind turbine technology, the deployment of wind turbines in metropolitan areas remains severely limited. Numerous studies have investigated various designs of urban wind turbines, employing field data, wind tunnel testing, and computational fluid dynamics (CFD) to evaluate both new and existing turbine designs. This study contributes to the understanding of urban wind energy by reviewing the state-of-the-art in urban wind turbine designs. It also explores the potential of flanged diffuser shroud mechanism, which is installed on building rooftops to house small wind turbines. Employing computational fluid dynamics (CFD) simulations, this review compares the operational efficacy of the diffuser shroud mechanism. The CFD findings also validate the ability of the turbine to harness wind power generation in complex urban settings by leveraging airflow over structures.