Analysis of the Effects of Overflow Leakage Phenomenon on Archimedes Turbine Efficiency

Siswantara, Ahmad Indra; Budiarso,; Harmadi, Rudias; Warjito,; Adanta, Dendy

doi:10.1109/icstc.2018.8528687

Cited by 6 publications

(7 citation statements)

References 7 publications

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“…Based on losses analysis [20], the overflow leakage is avoided by the α angles, not extremes. However, the experimental results show that the dominant load makes overflow leakage, not the α angles (see Figure 3) [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Based on Figure 3, more load will produce a more dominant overflow [34].…”

Section: Discussionmentioning

confidence: 99%

“…Due to Erinofiardi et al, [32] reports is not satisfying, Siswantara et al, [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34] also investigated the effect of the α angle on overflow leakage, where the analysis in the α angle of 36⁰ until 44⁰. Based on the results, the overflow leakage does affect the turbine efficiency but not the dominant effect, were in the angle of 36⁰ efficiency of 30% and 44⁰ the efficiency of 27.5% [20]. Contradicts to Rorres's [16] analysis, the overflow leakage should make efficiency go down drastically.…”

Section: Archimedes Screw Turbine Studiesmentioning

confidence: 96%

“…However, some studies conclude that water weight contribution does not significantly affect the wheel rotation because the water in the bucket is not much and looks silent. The motion of water goes downstream like displacement [20]. In addition, the direction of water movement due to gravity with the wheel's rotation is opposite [17].…”

Section: Characteristic Of Archimedes Screw Turbinesmentioning

confidence: 99%

“…In addition, the direction of water movement due to gravity with the wheel's rotation is opposite [17]. Hence the AST is driven by hydrostatic pressure by water [17][18][19][20][21]. Müller and Senior [17] suspected the AST absorbs is hydrostatic pressure (see Figure 2).…”

Section: Characteristic Of Archimedes Screw Turbinesmentioning

confidence: 99%

“…Summary of studies in the AST Particulars Specifications Rorres [16] Optimization the AST Havendi and Arnif [38] Effect the angle of screw Müller and Senior [17] Simplification theory Yulistiyanto et al, [30] Investigated the effect of discharge and the α angle on performance to prove the simplification theory [17] Nuernbergk and Rorres [24] Model analytic for water inflow in the AST Raza et al, [25] Calculation of the performance of the AST using Simulink MATLAB Lyons [26] 3D analysis of water volume in the AST bucket Khami and Akhyan [31] Investigated the effect of the α angle Lee et al, [27] Feasibility study 3D printing machines for manufacturing the ASTs wheel Saroinsong et al, [28] Effect of the vortex on the performance of the AST Harja et al, [39] Optimization volume bucket by Rorres model [16] Kozyn and Lubitz [29] Modeling losses (improvisation Lyons [26] study) Erinofiardi et al, [32,33] Investigated the α angle of 22⁰, 30⁰ and 40⁰ Siswantara et al, [20,34] Analysis of the effect of overflow leakage and investigated the α angle of 36⁰ until 44⁰ Dellinger et al, [35,36] Analysis gap leakage using computational fluid dynamics (CFD) method and investigation of effect the α angle of 10⁰ until 38⁰ and number of blades…”

Section: Tablementioning

confidence: 99%

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A Study of The Developing Archimedes Screw as A Turbine

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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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