2D numerical analysis of an H-Darrieus hydrokinetic turbine with passive improvement mechanisms

• Autorzy: Guevara-Munoz Angie Judith , Hincapie-Zuluaga Diego Andres , Rodriguez-Cabal Miguel Angel , Sierra-Del-Rio Jorge Andres , Colmenares-Quintero Ramón Fernando , Torres-Lopez Edwar

Identyfikatory

DOI

10.24423/EngTrans.3111.20231107

• Języki publikacji: EN

Abstrakty

EN

H-Darrieus hydrokinetic turbines are an alternative for small hydroelectric plants. These turbines are considered to have a low environmental impact as they do not require reservoirs. However, they have limited self-starting capacity, which limits their use. Nevertheless, the configuration of passive mechanisms in the H-Darrieus turbines affects their performance, as they tend to increase the flow velocity. This study is part of a project with the aim to design and build a turbine to generate energy in the Colombian river scenario in non-interconnected zones. The objective of this study is to analyze the performance through numerical simulations of four H-Darrieus rotors to be configured with passive improvement mechanisms. The study was conducted using ANSYSr Fluent software, employing transient, two-dimensional models under constant operating conditions. Overlapping meshes were used for the stationary and rotating domain configuration. The results show that increased solidity leads to decreased tip speed ranges and increased maximum rotor power. Improvement in the self-starting capability was found with passive mechanisms employing a diffuser geometry. Among the tested configurations, the rotor configured with a Venturi-shaped mechanism achieved a remarkable 660% improvement in the power coefficient compared to configurations without such mechanisms.

Słowa kluczowe

EN

renewable energy; H-Darrieus rotor; hydrokinetics; diffusers; computational fluid dynamic; CFD; external accessories

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2023
• Tom: Vol. 71, iss. 4
• Strony: 553--569
• Opis fizyczny: Bibliogr. 41 poz., rys., tab., wykr.

Twórcy

autor

Guevara-Munoz Angie Judith

• Department of Mechatronic Engineering, Research Group – MATyER Instituto Tecnológico Metropolitano Medell´ın, Colombia

autor

Hincapie-Zuluaga Diego Andres

• Department of Mechatronic Engineering, Research Group – MATyER Instituto Tecnológico Metropolitano Medell´ın, Colombia

autor

Rodriguez-Cabal Miguel Angel

• Department of Mechatronic Engineering, Research Group – MATyER Instituto Tecnológico Metropolitano Medell´ın, Colombia

autor

Sierra-Del-Rio Jorge Andres

• Department of Mechanical Engineering, Research Group – GIIAM Institución Universitaria Pascual Bravo Medell´ın, Colombia

autor

Colmenares-Quintero Ramón Fernando

• Faculty of Engineering, Universidad Cooperativa de Colombia Medell´ın, Colombia

autor

Torres-Lopez Edwar

• Department of Mechanical Engineering, Research Group – GEA Universidad de Antioquia Medell´ın, Colombia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).