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Analysis of alocally manufactured ventis 20 - 100WT HAWT / Mahmoud Mohamed Shawky ; Supervised Mohamed Tawfeek , Basman Elhadidi

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Mahmoud Mohamed Shawky Mahmoud , 2015Description: 90 P. : photographs ; 30cmOther title:
  • المصنعة محليا Ventis 20 - 100WT دراسة الأحمال على التوربينة الأفقية [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Aerospace Engineering Summary: The ventis 20 - 100WT turbine is operated in wind farms in hurghada. The blades were locally manufactured because of the multiple failures and lack of spare parts at the AOI. Here in this thesis, the re - designed blades are aerodynamically and structurally examined. First, the steady and unsteady aerodynamic loads are computed using BEM theory. The structural properties of the 10m composite blade are then obtained from NREL dedicated HAWT software PreComp. The steady loads are computed using NREL software and compared to a FEM, and agree reasonably well. The dynamic loads are then analyzed to determine the fatigue life and that the blades operating at frequencies other than the resonant modes. The fatigue analysis suggests that the re -designed blades have a short life about (70 month at operating RPM). Furthermore, results from an environmental study suggest that the blades life will be shorter about (52 month). In future plan we will test experimentally the manufactured blade locally to meet the design constraints requirements and try to optimize it and find a solution for isolating the material used from the environmental effect
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Item type Current library Home library Call number Copy number Status Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.01.M.Sc.2015.Ma.A (Browse shelf(Opens below)) Not for loan 01010110066971000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.01.M.Sc.2015.Ma.A (Browse shelf(Opens below)) 66971.CD Not for loan 01020110066971000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Aerospace Engineering

The ventis 20 - 100WT turbine is operated in wind farms in hurghada. The blades were locally manufactured because of the multiple failures and lack of spare parts at the AOI. Here in this thesis, the re - designed blades are aerodynamically and structurally examined. First, the steady and unsteady aerodynamic loads are computed using BEM theory. The structural properties of the 10m composite blade are then obtained from NREL dedicated HAWT software PreComp. The steady loads are computed using NREL software and compared to a FEM, and agree reasonably well. The dynamic loads are then analyzed to determine the fatigue life and that the blades operating at frequencies other than the resonant modes. The fatigue analysis suggests that the re -designed blades have a short life about (70 month at operating RPM). Furthermore, results from an environmental study suggest that the blades life will be shorter about (52 month). In future plan we will test experimentally the manufactured blade locally to meet the design constraints requirements and try to optimize it and find a solution for isolating the material used from the environmental effect

Issued also as CD

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