Abstract
Banki turbine is a cross flow type water turbine, the construction is simple and suitable for micro hydro power plants. Increasing power efficiency is a very important point. One of the method to increase power is by controlling the water inflow to the runner. This research aimed to investigate variations of the nozzle arch against the water inflow of the banki turbine’s runner in order to obtain good flow trajectory of water from the first to the second stage of runner blades without striking the shaft. The design of bottom runner case was round and the top was rectangular. The nozzle arch 2D geometry were formed in AutoCAD software, while the 3D geometry using Solidworks. Flow analysis and simulation using CFD software. The nozzle arch were made into five variants, N-1 variant radius was 200 mm, N-2 = 225 mm, N-3 = 250 mm, N-4 = 275 mm, and N-5 = 300 mm. The water discharge was 2 m3/min with head 5.5 m, the angle of water inlet was 16° from vertical direction. It was found that the best variant were N-3, where the flow trajectory and the velocity from the first stage to the second stage of the blade did not strike the shaft.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Choi Y-D, Lim J-I, Kim Y-T, Lee Y-H (2008) Performance and internal flow characteristics of a cross-flow hydro turbine by the shapes of nozzle and runner blade. J Fluid Sci Technol. https://doi.org/10.1299/jfst.3.398
De Andrade J, Curiel C, Kenyery F, Aguilln O, Vásquez A, Asuaje M (2011) Numerical investigation of the internal flow in a Banki turbine. Int J Rotating Mach. https://doi.org/10.1155/2011/841214
Sammartano V, Aricò C, Carravetta A, Fecarotta O, Tucciarelli T (2013) Banki-Michell optimal design by computational fluid dynamics testing and hydrodynamic analysis. Energies. https://doi.org/10.3390/en6052362
Kaunda Chiyembekezo S, Kimambo Cuthbert Z, Nielsen TK (2014) A numerical investigation of flow profile and performance of a low cost crossflow turbine. Int J Energy Environ
Saini RP, Singal SK (2015) Development of cross-flow turbine for pico hydro. In: International conference on hydropower for sustainable development. Alternate Hydro Energy Centre, IIT Roorkee, Uttarakhand
Patel M, Nirav Oza KP (2016) Computational fluid dynamic analysis of cross flow turbine. Int J Innov Res Sci, Eng Technol 5(9):18936–18944
Chichkhede S, Verma V, Gaba VK, Bhowmick S (2016) A simulation based study of flow velocities across cross flow turbine at different nozzle openings. Procedia Technol. https://doi.org/10.1016/j.protcy.2016.08.190
Popescu D, Popescu C, Dragomirescu A (2017) Flow control in Banki turbines. Energy Procedia. https://doi.org/10.1016/j.egypro.2017.10.272
Adhikari R, Wood D (2018) The design of high efficiency crossflow hydro turbines: a review and extension. Energies. https://doi.org/10.3390/en11020267
Systemes Dassault (2016) Technical reference solidworks flow simulation
Scott-Pomerantz CD (2004) The K-epsilon model in the theory of turbulence. Ph.D. dissertation. University of Pittsburgh
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Sirojuddin, Wardhana, L.K., Rizky, O., Ibnawati, R., Syahri, J.R. (2020). The Investigation of Nozzle Arch Variations Against the Water Inflow to the Runner of Banki Turbine Based on CFD. In: Sabino, U., Imaduddin, F., Prabowo, A. (eds) Proceedings of the 6th International Conference and Exhibition on Sustainable Energy and Advanced Materials. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4481-1_74
Download citation
DOI: https://doi.org/10.1007/978-981-15-4481-1_74
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-15-4480-4
Online ISBN: 978-981-15-4481-1
eBook Packages: EngineeringEngineering (R0)