Investigating the feasibility of Savonius wind turbine in urban

This scientific thesis investigates the effective harnessing of wind energy in urban settings, with emphasis on vertical-axis wind turbines. It underscores critical considerations like wind resource availability, turbine size, suitable site selection, noise impact, optimal operational conditions, and adherence to regulations to ensure the successful installation of wind turbines in such operational conditions.
Addressing the complexities of urban environments, the research explores the challenges posed by buildings, trees, and structures that generate turbulence, thus reducing wind speeds and hindering efficient wind power generation. Consequently, the optimal size and type of wind turbines are investigated, considering the spatial constraints typically encountered in urban settings. Balancing energy production and turbine characteristics is paramount to ensuring effective and sustainable wind energy integration in cities.
The study involves a comprehensive wind potential analysis for five distinct locations in Nottingham, UK, employing seven different probability density functions, the research predicts wind energy potential to determine the most appropriate distribution function. The findings from this analysis were instrumental in installing a Darrieus-type wind turbine in partnership with Nottingham Trent University, UK. Moreover, a comparable approach was applied to investigate two locations in Poland. The results were utilized for additional examination and comparison of wind turbines in these regions with existing studies. The analysis involved both numerical and experimental studies.
Numerical simulations were conducted to establish a test facility at IMP-PAN, ensuring results that closely align with real-life operational conditions. Further, experimental research involved testing novel twin-rotor Savonius wind turbines in urban settings and examining their efficiency and performance. The outcomes were used the predict the optimal working conditions by loading the wind turbine for maximum efficiency at all wind speeds. This included the installation of a stand-alone system on the institute’s roof and a power plant utilizing these turbines atop a skiing hill in Przywidz, providing valuable insights into wind energy production in extreme urban locations. Additionally,
the study evaluates the effectiveness of segmented rotors in this context.
Noise from wind turbines is a crucial concern in urban areas, as their proximity to residential and sensitive buildings can lead to potential disruptions for the community.
The thesis incorporates various noise measurement tests to quantify and analyze the annoyance caused by wind turbines. Special attention has been given to the correlation between the noise produced at different operating conditions. This study was divided into two parts. For the first part of the analysis, segments were introduced in a typical Savonius rotor to determine its influence on overall noise and energy production. A trade-off between energy loss and noise reduction was established. For the second half of the examination, particular emphasis was put on localizing the noise sources for a typical operational range of Savonius wind turbine, using beam-forming techniques,
aiming to suggest improvements in rotor design. These experiments were performed
in the Open Jet Facility (OJF) in TU Delf

Access required to process the data and present the results as part of my phd thesis.