Effect of turbine resistance and positioning on performance of Aerofoil wing building augmented wind energy generation

Elbakheit, Abdel Rahman

doi:10.1016/j.enbuild.2018.06.025

Cited by 6 publications

(1 citation statement)

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“…However, many challenges are faced in this process 6 due to the variability of wind patterns and the low magnitude of wind speeds posed by the presence of buildings and other obstacles. Diffuser’s, shroud’s and aerofoil’s 7 , 8 wind augmented turbines provide an opportunity to solve these problems by accelerating wind flows to confined spots in a controlled manner. Thus, reducing the effect of low velocities and turbulences around buildings.…”

Section: Introductionmentioning

confidence: 99%

Building integrated diffusers’ area ratio optimization

Elbakheit

2024

Sci Rep

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This paper presents an investigation into the effect of area ratio parameter of diffusers on its energy output through power coefficient Cp. This parameter has effect both on diffusers’ energy yield, besides diffuser’s size for architectural integration prospects. A systematic increase in diffusers area ratio is adopted following standardized diffuser profile presented by NACA 1244 aerofoil. A series of area ratios were investigated (i.e., 1.25, 1.5, 1.75, 2, 2.5, 3 and 3.5). Area ratio of 1.5 (i.e., outlet/inlet, 0.75 m/0.50 m) exhibited the highest power coefficient Cp of 4.2, in addition to achieving highest resulting velocity of 25.8 m/s under incident velocity of 16m/s. Considerable wind separation inside inner walls of diffusers occurred from area ratio 1.75 onwards, which impacted resulting velocities. Simulations performed with ANSYS CFD Academic to standalone diffusers. A series of incident velocities employed from 1 to 16 m/s that resulted in velocity increase by 120–156% respectively.

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Section: Introductionmentioning

confidence: 99%