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Urban Wind Turbines: Potentials and Constraints

Lookup NU author(s): Dr Islam Abohela, Dr Neveen Hamza, Dr Steven Dudek

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Abstract

This paper, is part of a research investigating variables affecting the performance of urban wind turbines, specifically roof mounted wind turbines. These variables include wind direction, roof shape, building height and surrounding urban configuration. Computational Fluid Dynamics (CFD) is the tool used for assessing wind flow around the investigated cases. The CFD simulations are validated by comparing the results with in-situ measurements and wind tunnel tests results for wind flow around a surface mounted cube in a turbulent channel flow. The validation study shows that the CFD simulations compare favourably with both the wind tunnel tests results and the in-situ measurements. Results show that for each roof shape there is an optimum mounting location for roof mounted wind turbines and among the investigated roof shapes, the barrel vaulted roof had the highest accelerating effect on wind flow above the roof. Also, it is evident that changing wind direction, building height and surrounding urban configuration had an effect on choosing the optimum mounting location and the energy yield. In addition to presenting the results of the simulation work, this paper focuses on presenting the effect of the investigated independent variables on the wind velocity and turbulence intensity at the wind turbine’s proposed mounting location, accordingly, on the energy yield of the proposed wind turbine. Recommendations of the research are also outlined focusing on the potentials of integrating wind turbines within buildings and what is needed for this kind of integration to be successful. In light of the obtained results of the research, the paper concludes by discussing how architects can implement the available wind assessment tools and their knowledge of the design process in providing an informed decision regarding integrating wind turbines within the built environment and in the vicinity of buildings and to what extent should the design of a building be affected by the decision of integrating wind turbines.


Publication metadata

Author(s): Abohela I, Hamza N, Dudek S

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: CISBAT 2013, Clean Technology for Smart Cities and Buildings

Year of Conference: 2013

Pages: 715-720

ISSN: 9782839912822

URL: http://infoscience.epfl.ch/record/190601/files/CISBAT2013_proc_Vol2_online.pdf

Library holdings: Search Newcastle University Library for this item

ISBN: 9782839912808


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