Experimental Study of Screw Turbine Performance based on Different Angle of Inclination

Erinofiardi,; Agus, Nuramal; Bismantolo, Putra; Date, Abhijit; Akbarzadeh, Aliakbar; Mainil, Afdhal Kurniawan; Suryono, Ahmad Fauzan

doi:10.1016/j.egypro.2017.03.094

Cited by 34 publications

(36 citation statements)

References 12 publications

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“…Screws with low inclination angles performed best in a study that varied length and inclination to maintain a constant head: three inclination angles were tested (15.6 , 24.4 , and 33.8 ) and the screw with β = 15.6 had the highest efficiency [113]. The authors plan to extend their dataset with CFD simulations to test these relationships further, since existing literature on inclination angles suggests the opposite [103,114]. There is a practical trade-off in selecting an inclination angle.…”

Section: Geometry and Operating Parametersmentioning

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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Section: Geometry and Operating Parametersmentioning

confidence: 99%

Archimedes screw generators for sustainable micro‐hydropower production

Simmons

Lubitz

2021

Intl J of Energy Research

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“…Havendri and Arnif [22] have proven this hypothesis, but the reported results have doubtful results. Therefore, Yulistiyanto et al, [30], Khami and Akhyan [31], Erinofiardi et al, [32][33], Siswantara et al, [20,-34], and Dellinger et al, [35][36] motivated to study the effect of the α angle on performance such as.…”

Section: Archimedes Screw Turbine Studiesmentioning

confidence: 99%

“…Erinofiardi et al, [32][33] investigated the α angle of 22⁰, 30⁰, and 40⁰. Erinofiardi et al, [32][33] manufacture the AST using the simplification theory initiated by Müller and Senior [17].…”

Section: Archimedes Screw Turbine Studiesmentioning

confidence: 99%

A Study of The Developing Archimedes Screw as A Turbine

Sari

Saputra

Syofii

et al. 2021

ARFMTS

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Electricity plays an imperative role in improving the rural or remote community economic growth and quality of life. The pico hydro type Archimedes screw turbine (AST) is considered an independent power plant in rural or remote areas. The advantages of the AST are friendly to aquatic biota, the high and stable efficiency (electrical efficiency of 30% to 49%), and can operate in a run of river conditions. However, although this technology has been studied ± two decades, there is still no theory explaining the relationship between conversion energy, the geometry of screws, and efficiency. Therefore, the development of Archimedes screw focuses on the role of a converter water energy categorized as the environmentally friendly power plant. Thus, this paper aims to describe the future work required for the AST so that the basic principles and empirical theories are found. Based on reviews, the AST design can use Rorres and Muller & Senior analysis, AC generators with a pulley and toothed belt transmission systems, and do not immerse the outflow bucket side in the water. Furthermore, for AST to be better, several studies need to be done such as the method of manufacturing precision screws, the effect bubbles in the bucket and how to avoid them, determination optimum of the head and screw length using the slope angle, and investigation of the ratio of the inlet velocity with the angular velocity of a wheel on performance to avoid overflow leakage due to loading.

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“…The screw can manufacture it from locally available materials, as well as installed, as it is installed in previous stations or Old dams, thus eliminating the cost of civil works. Rorres [12] presented an analytical study to improve the design of the Archimedes screw as a water pump and the cost is to maximize the amount of water that is raised so determine the external and internal parameters of the screw and reach optimal ratios for the parameters where internal parameters are Inner screw radius (Ri), Number of blades (N), and Pitch of one blade (P); External parameters are (Outer screw radius (Ro), length of screw (L), and Slope of screw (α) Screw turbine action system Archimedes, water enters from the top of the screw and due the hydrostatic pressure on the surface of the screw and its continuation down, the screw rotates that is, the kinetic energy of the water turned into a rotational energy of the blades [13]. Müller and Senior [14] developed a theoretical model and compared with the experimental results, was reached to a similar efficiency to the experimental results well, also found that each nail geometry has a higher limit of efficiency, and that the efficiency of the Archimedes screw is indicative of both the geometry of the screw and mechanical losses, in addition to the efficiency increases with the increase in the number of blades and the decrease in the angle of the tilt of the spear with the horizon of the head descending between the blades .…”

Section: Introductionmentioning

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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Experimental Study of Screw Turbine Performance based on Different Angle of Inclination

Cited by 34 publications

References 12 publications

Archimedes screw generators for sustainable micro‐hydropower production

Archimedes screw generators for sustainable micro‐hydropower production

A Study of The Developing Archimedes Screw as A Turbine

Numerical and Experimental Modelling of Small Hydropower Turbine

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