Design and analysis of gorlov helical hydro turbine on index of revolution

Jayaram, V.; Bavanish, B.

doi:10.1016/j.ijhydene.2022.07.181

Cited by 6 publications

(3 citation statements)

References 30 publications

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“…In a study conducted by BK. Kirke, it was found that modifying the pitch angles of the helical blades of the Gorlov turbine resulted in an improvement of the initial torque and power coefficient by up to 40% [24,25]. The power coefficient for the NACA0014 turbine, as presented in [26], was utilised in this study.…”

Section: Gorlov Turbinementioning

confidence: 99%

Real-Time Co-Simulation and Grid Integration of PMSG-Based Hydrokinetic Energy Conversion Systems via Power-Hardware-in-the-Loop Technics

Jasso-Ruiz,

Rodríguez-Rodríguez,

Mendoza

et al. 2024

Energies

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Ocean energy sources are a promising source of energy. However, simulating a hydrokinetic farm with multiple units requires significant computational resources, while physical experimentation on site is expensive. Therefore, the scientific challenge is to develop analytical and experimental tools that consider real aspects of areas with generation potential in a controlled laboratory environment. This paper presents a theoretical and experimental tool for analysing the interconnection of a hydrokinetic energy farm comprising 20 generation units. The test bench is a Power Hardware in the Loop type, consisting of one physical prototype generator to scale and 19 discrete averaged models operating in real-time. The system allows generators to interact through an amplifier, emulating the impact of power injection in a small electrical network. This is based on the variability of the marine resource, specifically the current velocities in the Cozumel-Mexico channel. Unlike other publications, the most significant contribution of this work is a complete feasible emulation of a marine current plant interconnected to an electrical grid, where the objective is to have a global analysis of the operation of each generation unit and the impact of the interconnection as a whole, considering that such information is of utmost importance for the execution of future projects of power generation from the sea.

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Section: Gorlov Turbinementioning

confidence: 99%

Real-Time Co-Simulation and Grid Integration of PMSG-Based Hydrokinetic Energy Conversion Systems via Power-Hardware-in-the-Loop Technics

Jasso-Ruiz,

Rodríguez-Rodríguez,

Mendoza

et al. 2024

Energies

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“…In the case of Vshaped rotor (or "Y" or "sunflower") with the two-bladed fixed geometry, each blade is attached to the rotor hub at its root at a fixed angle to the vertical forming a "V" [37]. Helical-shaped (or Gorlov) rotor consists of straight and curved blades that are helically twisted around the rotational axis; a helical-bladed wind turbine's highest coefficient of performance ranges between 0.25 and 0.479, even if it shows notable unsteadiness in the power coefficient over the course of a single turbine revolution [38,39].…”

Section: Small-scale Wind Turbines: Main Classifications Performance ...mentioning

confidence: 99%

Commercial Small-Scale Horizontal and Vertical Wind Turbines: A Comprehensive Review of Geometry, Materials, Costs and Performance

Rosato,

Perrotta,

Maffei

2024

Energies

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The effective exploitation of renewable energy sources is one of the most effective solutions to counter the energy, environmental and economic problems associated with the use of fossil fuels. Small-scale wind turbines (converting wind energy into electric energy with a power output lower than 50 kW) have received tremendous attention over the past few decades thanks to their reduced environmental impact, high efficiency, low maintenance cost, high reliability, wide wind operation range, self-starting capability at low wind speed, limited installation space, reduced dependence on grid-connected power and long transmission lines, low capital costs, as well as the possibility to be installed in some urban settings. However, there are significant challenges and drawbacks associated with this technology from many different perspectives, including the significant discrepancy between theoretical performance data provided by the manufacturers and real field operation, that need to be investigated in greater depth in order to enable a more widespread deployment of small-scale wind turbines. In this review, a complete and updated list of more than 200 commercially available small-scale horizontal and vertical wind turbine models is provided and analysed, detailing the corresponding characteristics in terms of the number and material of blades, start-up wind speed, cut-in wind speed, cut-out wind speed, survival wind speed, maximum power, noise level, rotor diameter, turbine length, tower height, and specific capital cost. In addition, several scientific papers focusing on the experimental assessment of field performance of commercially available small-scale horizontal and vertical wind turbines have been reviewed and the corresponding measured data have been compared with the rated performance derived from the manufacturers’ datasheets in order to underline the discrepancies. This review represents an opportunity for the scientific community to have a clear and up-to-date picture of small-scale horizontal as well as vertical wind turbines on the market today, with a precise summary of their geometric, performance, and economic characteristics, which can enable a more accurate and informed choice of the wind turbine to be used depending on the application. It also describes the differences between theoretical and in-situ performance, emphasizing the need for further experimental research and highlighting the direction in which future studies should be directed for more efficient design and use of building-integrated small-scale wind turbines.

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“…In the global south, the exploitation and development of the SHP system are faced with many drawbacks, which include a lack of access to appropriate SHP turbine technologies and inadequate technical personnel [7,29,30]. Studies have strived to bridge the identified technical gaps through the adoption of different design and fabrication methods and models and several of these studies failed in terms of simplicity and clarity, computation reliability, and detail [31][32][33][34]. Because of the importance of the SHP system in increasing clean electricity access and reducing GHG emissions, all hands should on the desk to develop the vastly SHP sites for electricity.…”

Section: Tablementioning

confidence: 99%

Deployment of Design Sequence for Crossflow Turbine Functionality Enhancement

Ebhota

Tabakov

2023

ARFMTS

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The grossly untapped hydro potential in the global south is attributed to the inadequate technical personnel; as one of the main factors limiting the design and manufacturing of efficient small hydropower (SHP) turbine plants. The technical personnel and production facilities available in the global south, especially in sub-Saharan Africa (SSA), cannot support the development of these components sufficiently. The study presents the CFT design process in a clearer and simplified manner. To bridge the technical knowledge gap, the study presents an improved SHP system design procedure through a partly isolated-based design sequence. The entire design process of the SHP turbine, with a focus on crossflow turbine (CFT), was divided into sections, subsections, and parts. The study presents connections between geometry, operation, and functionality of design parameters for CFT components, such as runner, shaft, pulley, and belt graphically and in tabular forms.

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Design and analysis of gorlov helical hydro turbine on index of revolution

Cited by 6 publications

References 30 publications

Real-Time Co-Simulation and Grid Integration of PMSG-Based Hydrokinetic Energy Conversion Systems via Power-Hardware-in-the-Loop Technics

Real-Time Co-Simulation and Grid Integration of PMSG-Based Hydrokinetic Energy Conversion Systems via Power-Hardware-in-the-Loop Technics

Commercial Small-Scale Horizontal and Vertical Wind Turbines: A Comprehensive Review of Geometry, Materials, Costs and Performance

Deployment of Design Sequence for Crossflow Turbine Functionality Enhancement

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