Computational fluid dynamics modeling for the design of Archimedes Screw Generator

Dellinger, Guilhem; Garambois, Pierre‐André; Dellinger, Nicolas; Dufresne, Matthieu; Terfous, Abdelali; Vázquez, J.; Ghenaim, Abdellah

doi:10.1016/j.renene.2017.10.093

Cited by 35 publications

(32 citation statements)

References 14 publications

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“…The flow of fluid through a control volume can be described by the complete Navier-Stokes equations. These equations can be derived depending on the principle of conservation of mass, momentum, and energy [23,24]. In this research, we didn't rely on the energy equation because we didn't take the heat into consideration.…”

Section: Governing Equationsmentioning

confidence: 99%

Numerical and Experimental Modelling of Small Hydropower Turbine

Abdullah

Kamel

Khalil

2021

ARFMTS

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Recently, Archimedes screw turbines have been developed to operate as small hydropower stations, because of its reliability to operate with the low head( less than 5 m) and its low cost of design and operation. In the present study, the influence of the flow rate, shaft inclination angle, and the number of blades is studied using physical model and numerical model to determine the performance of Archimedes screw turbine at Ramadi Barrages in Iraq. The physical model was made of stainless steel with the following parameters: (the radius ratio is 0.536, the pitch is 70 mm, the shaft angles are 30? ,35? ,40? ,45?). The experimental work on the physical model is achieved with different flow rates and angles .The results showing that the highest efficiency is 81.4 % At the angle of 35? and the flow rate is 1.12 l/s . The maximum energy obtained is 25.13 w at the angle of 45?, the e flow rate is 2.065 l/s, and the efficiency was 72%. Also the results show that the increase in the number of blades increases the torque and efficiency of the turbine.

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Section: Governing Equationsmentioning

confidence: 99%

Numerical and Experimental Modelling of Small Hydropower Turbine

Abdullah

Kamel

Khalil

2021

ARFMTS

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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%

“…CFD has been used to investigate variations in ASG performance due to changes in pitch [150], number of blades [130,150], flow rate [120,151], outlet variations [152], pressure and velocity characteristics [133,150], and inclination angle [120,130,148,151,153]. Numerical simulations in the literature include simulations of single buckets and multiple coupled buckets [145,146], as well as full-scale dynamically meshed domains [133,148,151].…”

Section: Cfd Modelsmentioning

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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“…The model was initially developed at the ICube Laboratory (Strasbourg, France) using OpenFOAM 5.0 [40]. The governing equations and simulation implementation are detailed in the literature [41], [42].…”

Section: Numerical Simulationsmentioning

confidence: 99%

Dynamic Overflow Leakage In Archimedes Screw Generators

Simmons¹,

Dellinger²,

Aliabadi³

et al. 2021

Progress in Canadian Mechanical Engineering. Volume 4

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The dynamic overflow leakage phenomenon has been introduced in Archimedes screw generator research, but it has not been discussed in the literature in much detail. The authors sought to examine this phenomenon in greater detail by computational fluid dynamic (CFD) studies supported with experimental observations. The CFD results indicated that surface roughness had a significant impact on frictional power losses as well as overflow leakage in Archimedes screws. The results gathered and documented in this study will aide in further performance predicting model development to optimize the design and power production of Archimedes screw generator powerplants.

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Computational fluid dynamics modeling for the design of Archimedes Screw Generator

Cited by 35 publications

References 14 publications

Numerical and Experimental Modelling of Small Hydropower Turbine

Numerical and Experimental Modelling of Small Hydropower Turbine

Archimedes screw generators for sustainable micro‐hydropower production

Dynamic Overflow Leakage In Archimedes Screw Generators

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