Experimental investigation and performance analysis of Archimedes screw generator

Dellinger, Guilhem; Terfous, Abdelali; Garambois, Pierre‐André; Ghenaim, Abdellah

doi:10.1080/00221686.2015.1136706

Cited by 42 publications

(14 citation statements)

References 7 publications

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“…The viscous force occurs due to the friction between the water blades, as shown in Figure S1‐ii, Supporting Information. This force can be described using the Darcy–Weisbach law [ 22 ] as follows

d F_{viscous} = τ_{blade} d A

where

τ_{blade}

is the shear stress of the water on the blades, and

d A

is the elementary surface. By using the Darcy–Weisbach law,

τ_{blade}

can be described as

τ_{blade} = \frac{λ_{screw}}{8} ρ c_{f / blade}^{2}

where λ screw is the friction coefficient of the screw blade, ρ is the water density, and c f/blade is the assumed water velocity relative to a blade.…”

Section: Resultsmentioning

confidence: 99%

Screw Pump‐Type Water Triboelectric Nanogenerator for Active Water Flow Control

Chung

Kim

et al. 2020

Adv Eng Mater

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Triboelectric nanogenerators (TENGs) have been spotlighted due to the high efficiency, low cost, and easy accessibility. Despite their advantage, TENGs exhibit certain limitations such as a low lifetime. To overcome the limitation, the use of water–solid contact TENGs has been suggested. Most of the studies about water–solid contact TENG are focused on optimizing the device to adjust to the stagnant water or natural water movement. However, in most actual fluid machinery applications, the flow of water can be changed by mechanical components. The development of the water–solid contact TENG that actively changes water movement can broaden the application of TENGs. Herein, a screw pump TENG (SP–TENG) that can generate electricity by pumping water is developed. By analyzing contact surface area between water and screw in different screw rotational velocity and electrical difference from different electrode area, the device is able to optimize. The developed SP–TENG can light four light‐emitting diodes (LEDs) and activate temperature sensor. In addition, because SP–TENG can function as an active water TENG, it can enable the circulation of water to improve the ecosystem. Thus, SP–TENG can be used as an ecofriendly device that can simultaneously harvest energy and induce self‐purification of water.

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d F_{viscous} = τ_{blade} d A

where

τ_{blade}

is the shear stress of the water on the blades, and

d A

is the elementary surface. By using the Darcy–Weisbach law,

τ_{blade}

can be described as

τ_{blade} = \frac{λ_{screw}}{8} ρ c_{f / blade}^{2}

where λ screw is the friction coefficient of the screw blade, ρ is the water density, and c f/blade is the assumed water velocity relative to a blade.…”

Section: Resultsmentioning

confidence: 99%

Screw Pump‐Type Water Triboelectric Nanogenerator for Active Water Flow Control

Chung

Kim

et al. 2020

Adv Eng Mater

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show abstract

“…Level rendaman air berbanding lurus dengan sudut kemiringan turbin sehingga semakin besar sudut kemiringan turbin maka semakin besar pula level rendaman turbin. Menurut penelitian yang dilakukan oleh [17], ketika turbin terendam maka air dapat mengalir kembali ke sekrup sehingga memberikan hambatan kepada turbin ulir untuk berputar dan kemudian mengurangi kinerjanya.…”

Section: Grafik Hubungan Antara Sudut Kemiringan Turbin Dengan Kecepa...unclassified

Pengaruh Sudut Kemiringan Terhadap Putaran Dan Daya Hidrolisis Pada Turbin Archimedes Screw Portable

Cahyono

Amrullah

Ansyah

et al. 2022

JRM

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Picohydro Power Plant is one of the renewable energy sources which utilizes water or irrigation channels with a small head and flow rate. Many factors can affect the hydrolysis power and also the power on the rotation of the screw turbine, one of which is the turbine design. The existing turbine design needs to be evaluated by several factors such as inner and outer screw diameters, slope, screw pitch, number of blades and condition of inlet and outlet as well as head and water flow. Moreover, if the turbine is designed for a portable one with a length of approximately only 1 meter. These factors indicate that the design of each screw turbine design needs to be optimized through data analysis to find the optimal hydraulic power and turbine rotation. This study aims to determine the effect of the tilt angle of the Archimedes screw turbine on the turbine rotation and also the hydraulic power of the picohydro power plant with variations of the turbine tilt angle (K) 20°, 30° and 40°. The method used in this research is to use a Performance Experiment Study by making an Archimedes screw turbine as a picohydro power plant. From the test results using a discharge of 2 ltr/sec, the largest turbine rotation is 144.3 at a 30° turbine tilt angle with 10.77 Watt of produced hydraulic power (P).

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“…Rohmer et al (2016) compared experimental results from the largest laboratoryscale screw (at time of study) against model predictions and suggested improvements to modeling techniques [123]. Dellinger et al (2016) used experimental results from a smaller laboratory screw to evaluate the accuracy of a CFD model that was then used to investigate ASG parameters that are difficult to vary in full-or laboratoryscale screws [117,133].…”

Section: Experiments and Site Studiesmentioning

confidence: 99%

Archimedes screw generators for sustainable micro‐hydropower production

Simmons

Lubitz

2021

Intl J of Energy Research

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Archimedes screws have been used as pumps since antiquity and have more recently been implemented in micro-hydropower plants as an ecologically advantageous technology. They are regarded as a hydropower technology with lower environmental impact since they allow safe passage of aquatic flora and fauna through slow turning, widely spaced blades during operation. Archimedes screw generators (ASGs) operate at river-to-wire efficiencies at approximately 75% with relatively low installation and maintenance costs when compared to other hydropower technologies of the same scale. ASGs are relatively simple and cost-efficient to manufacture-simple enough to create in the seventh century BCE. Modern manufacturing techniques for sheet metal and fabrication have refined ASG production. The literature contains various parametric models for predicting screw power output, and more recent numerical simulations have provided insight into the fluid mechanics of screw generators. The knowledge gained from these studies has allowed researchers to suggest more optimal designs for Archimedes screws. However, much can be done to further improve the accuracy of power prediction models. This paper discusses the current state of the literature for ASGs, and highlights areas for future research to improve power prediction and optimization capabilities for researchers and industrial designers. Highlights• Archimedes screws are an ancient pumping technology that have more recently found use as a hydropower-producing technology.• Archimedes screw generators (ASGs) are a small-scale hydropower technology that may be installed as a run-of-river installation.• ASGs are an eco-friendly technology that allow for the safe passage of sediments, small debris, fish, and other aquatic wildlife through their flights during operation.• There are few experiments and computational fluid dynamic simulations that have sought to extend the literature's data on ASG operation.• Current performance models for ASGs lack robust validation to be properly implemented in power plant design.

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Experimental investigation and performance analysis of Archimedes screw generator

Cited by 42 publications

References 7 publications

Screw Pump‐Type Water Triboelectric Nanogenerator for Active Water Flow Control

Screw Pump‐Type Water Triboelectric Nanogenerator for Active Water Flow Control

Pengaruh Sudut Kemiringan Terhadap Putaran Dan Daya Hidrolisis Pada Turbin Archimedes Screw Portable

Archimedes screw generators for sustainable micro‐hydropower production

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