Performance evaluation of a drag hydro kinetic turbine for rivers current energy extraction - A case study

Ramadan, Ahmed; Nawar, Mohamed A.A.; Mohamed, Mohamed H.

doi:10.1016/j.oceaneng.2019.106699

Cited by 35 publications

(5 citation statements)

References 19 publications

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“…The last option is a special type of hydroelectric power generation using turbines that are completely submerged and, in some cases, anchored to the river bed [62,63]. The advantages of this type are its high efficiency, low maintenance, and high reliability compared to other hydroelectric types [64].…”

Section: Hydroelectric Renewable Energymentioning

confidence: 99%

Sustainable New Technology for the Improvement of Metallic Materials for Future Energy Applications

Jovičević-Klug,

Rohwerder

2023

Coatings

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The need for a more sustainable and accessible source of energy is increasing as human society advances. The use of different metallic materials and their challenges in current and future energy sectors are the primary focus of the first part of this review. Cryogenic treatment (CT), one of the possible solutions for an environmentally friendly, sustainable, and cost-effective technology for tailoring the properties of these materials, is the focus of second part of the review. CT was found to have great potential for the improvement of the properties of metallic materials and the extension of their service life. The focus of the review is on selected surface properties and corrosion resistance, which are under-researched and have great potential for future research and application of CT in the energy sector. Most research reports that CT improves corrosion resistance by up to 90%. This is based on the unique oxide formation that can provide corrosion protection and extend the life of metallic materials by up to three times. However, more research should be conducted on the surface resistance and corrosion resistance of metallic materials in future studies to provide standards for the application of CT in the energy sector.

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Section: Hydroelectric Renewable Energymentioning

confidence: 99%

Sustainable New Technology for the Improvement of Metallic Materials for Future Energy Applications

Jovičević-Klug,

Rohwerder

2023

Coatings

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“…They showed that the concept's energy cost is comparable to that of a land-based wind turbine. Ramadan et al 10 created and tested an S-shaped water current stream energy conversion system. The numerical simulation revealed that for a tip speed ratio of 0.8 and a streamflow velocity of 3 m/s, the S shape blade has a maximum power coefficient of 24.6%, representing a 40% improvement.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of small hydropower turbines installed downstream of Nile River branches (Egypt)

Ahmed,

Abdellatif,

Attia

et al. 2023

Sci Rep

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The current study proposes a new strategy for using small hydroelectric turbines in downstream river branches with the least amount of construction and the lowest cost by comparing two different methods of installing the turbines, the first by installing the turbines at the river's bottom and the second by installing the turbines on floating boats. The methodology of this article is based on predicting the distribution of velocities through the watercourse using experimental data collected at various points in the river's depth, and then predicting the resulting electrical power for different sizes of turbines, as well as estimating the number of turbines for each row and the number of rows along the river. Therefore, Investigate the proposed systems. The proposed small hydropower system's economic viability and environmental impact are investigated in this article. According to the nature of the waterway, the best diameter of a turbine that can be used is 1.5 m based on water velocities and river depths. The proposed power plant generated 25.8 kW per single turbine row, with an estimated cost of produced power (0.035 USD/kWh) of approximately 20 turbines installed per row. Compared to other renewable energy sources, the proposed hydropower system is cost-effective and environmentally friendly, as generating electricity with the proposed small hydropower plant could reduce annual carbon dioxide emissions by 368 tones of CO2 per single turbine row.

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“…For example, Ramadan et. al., [13] apply a computational method to determine the power performance of conventional and S-shape Savonius rotors. They used ANSYS-Fluent software to simulate water flow speeds of 0.5, 1.0, 2.0, and 3.0 m/s.…”

Section: Introductionmentioning

confidence: 99%

“…Most recent work on the Savonius HKT system has usually focused on the performance and characterization of the flow around the Savonius rotors. This includes methods for optimizing the design configuration flow [9,10,13,14], as well as various augmentation devices to improve the rotor performance [15,16]. However, despite the higher performance, the mechanical energy from the optimized rotor still needs to be converted and stored as electrical energy and very limited studies have been conducted on an actual turbine electrical system.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Power Storage System for Savonius Turbines in Wind and Water

Kamaruddin

Shamsuddin²

2022

ARASET

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The Savonius turbine is practical in generating off-grid electrical power for hydrokinetic applications due to its simple design, particularly for small rivers in rural areas. However, despite many studies on methods to improve turbine performance, the electrical aspect of the turbine system is rarely discussed. Therefore, the present study aims to evaluate the performance of a simple and affordable power storage system using a conventional 2-bladed Savonius turbine. The experiment was conducted in a wind tunnel and a water channel with flow speeds of 6 m/s and 0.33 m/s, respectively, corresponding to a Reynolds number of 62700. A power coefficient of 0.09 was discovered for the wind experiment and 0.11 for the water. The total amount of energy extracted from the water was 60% less than from the wind due to the lower available power. It was observed that the tip speed ratio decreases over the charging period due to the constant current and voltage of the Lithium-Ion batteries. This will allow for a fluctuation in the amount of required current and consequently affect the torque needed to spin the generator. The findings confirmed the functionality of the electrical storage system and contributed to the low manufacturing and maintenance cost of the hydrokinetic turbines.

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Performance evaluation of a drag hydro kinetic turbine for rivers current energy extraction - A case study

Cited by 35 publications

References 19 publications

Sustainable New Technology for the Improvement of Metallic Materials for Future Energy Applications

Sustainable New Technology for the Improvement of Metallic Materials for Future Energy Applications

Evaluation of small hydropower turbines installed downstream of Nile River branches (Egypt)

Experimental Investigation of the Power Storage System for Savonius Turbines in Wind and Water

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