Abstract: IIn the present study, a structure consisting of a nozzle, a diffuser and a flange was constructed and modeled using a 3-dimensional, 3D, model using ANSYS-FLUENT 6.3. The aim of this study is to get the results for an optimum geometric shape that generates the highest wind velocity in front of the wind turbine installed inside the structure at the position where the air velocity is maximum. In addition, another aim of the study is to compare the results of the 3D model in case of the presence of the wind turbine inside the flanged diffuser augmented wind turbine, FDAWT, structure with the case of empty structure (without the turbine). The obtained 3D model results for velocity and pressure distributions within the study domain are compared with the results obtained previously by the present authors using 2D model. The present 3D study reveals that: The maximum velocity along the structure centerline at the throat of the FDAWT structure is increased by 70% before inserting the turbine.

• Publication Date: 24-Jan-2021
• DOI: 10.15224/978-1-63248-191-7-15
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Abstract: The scrap metal factories are complex systems that play a crucial role in the transformation industry and construction. Since these factories face various safety issues in design, installation, operation, transportation and maintenance processes, there are many aspects open for improvement in Occupational Health and Safety risk assessment and it is required to deal with risks, reduce them to an acceptable level and control. To struggle with emerging risks and manage this process better, a risk assessment framework is proposed in this study. A case study is performed in an Algerian scrap metal company using the proposed framework. It is based on historical accident data exploitation using Bayesian Inference after a deep treatment. Results are recommendation which should improve the worker safety

• Publication Date: 25-Apr-2021
• DOI: 10.15224/ 978-1-63248-192-4-02
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