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Wind turbine designs for urban applications: A case study of shrouded diffuser casing for turbines

Title:

Wind turbine designs for urban applications: A case study of shrouded diffuser casing for turbines

Dilimulati, Aierken, Stathopoulos, Ted and Paraschivoiu, Marius (2018) Wind turbine designs for urban applications: A case study of shrouded diffuser casing for turbines. Journal of Wind Engineering and Industrial Aerodynamics, 175 . pp. 179-192.

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Official URL: https://doi.org/10.1016/j.jweia.2018.01.003

Abstract

The increased demand for renewable energy and the development of energy independent building designs have motivated significant research into the improvement of wind power technologies that target urban environments. However, the implementation of wind turbines in urban environments is still very limited. There have been some studies analyzing different designs of urban wind turbines either using computational fluid dynamics (CFD), wind tunnel tests or field data for existing or new turbine designs. This paper reviews the state-of-the-art of urban wind energy by examining the various types of urban wind turbine designs, with a view to understand their performance and the synergy between the turbines and the urban environments. It also considers a flanged diffuser shroud mechanism - a fluid machine, mounted on rooftop of buildings used as casing for small wind turbines to improve turbine performance by using mainly CFD. The diffuser shroud mechanism can draw the airflow over buildings utilizing its special features such as, cycloidal curve geometry at the inlet and a vortex generating flange at the outlet, to guide and accelerate the airflow inside. The performance of the fluid machine is optimized parametrically. The mechanism is modeled on a building rooftop in a real test site in Montreal, Canada with real statistical wind data. The CFD result confirms the functionality of the fluid machine to take advantage of the airflow over buildings in complex built-environments for wind power generation.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Mechanical, Industrial and Aerospace Engineering
Item Type:Article
Refereed:Yes
Authors:Dilimulati, Aierken and Stathopoulos, Ted and Paraschivoiu, Marius
Journal or Publication:Journal of Wind Engineering and Industrial Aerodynamics
Date:April 2018
Funders:
  • Concordia Institute for Water, Energy and Sustainable Systems (CIWESS)
Digital Object Identifier (DOI):10.1016/j.jweia.2018.01.003
ID Code:986084
Deposited By: THEODORE STATHOPOULOS
Deposited On:15 Jan 2020 21:27
Last Modified:15 Jan 2020 21:37
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