Document Type : Original Article

Authors

1 Department of Foundry, Politeknik Manufaktur Ceper, Klaten, Indonesia

2 Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta, Indonesia

Abstract

Water systems such as pipelines, pumping stations and other channels in horizontal flow have the potential as pico scale hydropower. This study aims to observe the effect of the number of blades and the blade angle on the electric power generation in the small bulb turbine on horizontal flow. This study also observes how the number of blades and blade angle affected the electrical power generated using analysis of variance. The level on the parameter number of blades used was 4, 5, 6, and 7 blades, while the level parameters on the blade angle were 15, 20, 25, and 30 degrees and each level was tested 4 replication at the discharge of 13 L/s. This paper shows the results of turbine performance in the form of angular velocity, electric power, efficiency, and the test results of the analysis of variance using SPSS 17 software. The results of the study show the number of blades 5 with a 20 degree blade angle of the best performance compared another the number of blades and the blade angle with an efficiency of about 50%. The results of the analysis of variance show the blade angle of the blade has a more dominant effect on electrical power than the number of blades.

Keywords

  1. Belay, A. K., Atenafu, D., Birhan, S. and Tegengn, T. 2020. “Techno-economic Feasibility Study of the Gunde Teklehaymanote Micro-hydropower Plant at Tindwat River, Central Gondar, Ethiopia.” Iranian Journal of Energy and Environment, 11(2), pp.130–136. https://doi.org/10.5829/IJEE.2020.11.02.06 
  2. Olanrewaju, R. M., Olatunji, O. W. and Akpan, G. P. 2018. “Impacts of Climate Variability on Hydroelectric Power Generation in Shiroro Station, Nigeria.” Iranian Journal of Energy and Environment, 9(3), pp.197–203. https://doi.org/10.5829/IJEE.2018.09.03.07 
  3. Belay, A. 2019. “Current Status, Future Potential and Barriers for Renewable Energy Development in Ethiopia (Short Communication).” Iranian Journal of Energy and Environment, 10(4). https://doi.org/10.5829/IJEE.2019.10.04.07 
  4. Alnakhlani, M. M., Mukhtar, M., Himawanto, D. A., Alkurtehi, A. and Danardono, D. 2014. “Effect of the Bucket and Nozzle Dimension on the Performance of a Pelton Water Turbine.” Modern Applied Science, 9(1), pp.25–33. https://doi.org/10.5539/mas.v9n1p25 
  5. Nurhayati, B. and Himawanto, D. A. 2018. “A renewable energy potential Pyrolysis Sengon (Paraserianthe falcatari) as a Renewable Energy Potential.” AIP Conference Proceedings, 2049(1). https://doi.org/10.1063/1.5082437 
  6. Zhou, D. and Deng, Z. D. 2017. “Ultra-low-head hydroelectric technology: A review.” Renewable and Sustainable Energy Reviews, 78(February), pp.23–30. https://doi.org/10.1016/j.rser.2017.04.086 
  7. Ho-Yan, B. 2012. Design of a Low Head Pico Hydro Turbine for Rural Electrification in Cameroon. The University of Guelph. 
  8. Ramos, H. M., Simão, M. and Kenov, K. N. 2012. “Low-Head Energy Conversion: A Conceptual Design and Laboratory Investigation of a Microtubular Hydro Propeller.” ISRN Mechanical Engineering, 2012, pp.1–10. https://doi.org/10.5402/2012/846206 
  9. Ramos, H. M., Simão, M. and Borga, A. 2013. “Experiments and CFD Analyses for a New Reaction Microhydro Propeller with Five Blades.” Journal of Energy Engineering, 139(2), pp.109–117. https://doi.org/10.1061/(ASCE)EY.1943-7897.0000096 
  10. Elbatran, A. H., Yaakob, O. B., Ahmed, Y. M. and Shabara, H. M. 2015. “Operation, performance and economic analysis of low head micro-hydropower turbines for rural and remote areas: A review.” Renewable and Sustainable Energy Reviews, 43, pp.40–50. https://doi.org/10.1016/j.rser.2014.11.045 
  11. Zhu, L., Zhang, H. P., Zhang, J. G., Meng, X. C. and Lu, L. 2012. “Performance of a bulb turbine suitable for low prototype head: model test and transient numerical simulation.” IOP Conference Series: Earth and Environmental Science, 15(4), pp.042032. https://doi.org/10.1088/1755-1315/15/4/042032 
  12. Luo, Y., Wang, Z., Liu, X., Xiao, Y., Chen, C., Wang, H. and Yan, J. 2015. “Numerical prediction of pressure pulsation for a low head bidirectional tidal bulb turbine.” Energy, 89, pp.730–738. https://doi.org/10.1016/j.energy.2015.06.022 
  13. Balaka, R., Rachman, A. and Delly, J. 2014. “Blade Number Effect for A Horizontal Axis River Current Turbine at A Low Velocity Condition Utilizing A Parametric Study with Mathematical Model of Blade Element Momentum.” Journal of Clean Energy Technologies, 2(1), pp.1–5. https://doi.org/10.7763/JOCET.2014.V2.79 
  14. Singh, P. and Nestmann, F. 2010. “Exit blade geometry and part-load performance of small axial flow propeller turbines: An experimental investigation.” Experimental Thermal and Fluid Science, 34(6), pp.798–811. https://doi.org/10.1016/j.expthermflusci.2010.01.009 
  15. Byeon, S. and Kim, Y. 2013. “Influence of Blade Number on the Flow Characteristics in the Vertical Axis Propeller Hydro Turbine.” International Journal of Fluid Machinery and Systems, 6(3), pp.144–151. https://doi.org/10.5293/IJFMS.2013.6.3.144 
  16. Shantika, T. 2013. “Perekayasaan Pembangkit Listrik Tenaga Air Untuk Penyediaan Listrik Skala Kecil 100 Watt.” Journal of Industrial Research Jurnal, 7(2), pp.137-146. (In Indonesian)
  17. Ekanayake, J. B. 2002. “Induction generators for small hydro schemes.” Power Engineering Journal, 16(2), pp.61–67. https://doi.org/10.1049/pe:20020202 
  18. Muller, M. W., Rue, Z. and Hiebler, K. 2016. “Investigation of the Potential Use of Tidal Current Turbines in the Ocean City, Maryland Inlet for Renewable Energy Generation.” Smart Grid and Renewable Energy, 07(04), pp.142–146. https://doi.org/10.4236/sgre.2016.74010 
  19. Singh, P. and Nestmann, F. 2011. “Experimental investigation of the influence of blade height and blade number on the performance of low head axial flow turbines.” Renewable Energy, 36(1), pp.272–281. https://doi.org/10.1016/j.renene.2010.06.033 
  20. Kurniawan, R., Himawanto, D. A. and Widodo, P. J. 2019. “The performance of numbers of blade towards picohydro propeller turbine.” IOP Conference Series: Materials Science and Engineering, 508, pp.012057. https://doi.org/10.1088/1757-899X/508/1/012057 
  21. Brijkishore, Khare, R. and Prasad, V. 2020. “Performance Evaluation of Kaplan Turbine with Different Runner Solidity Using CFD.” Advances in Intelligent Systems and Computing (pp. 757–767). Springer Nature Singapore Pte Ltd. https://doi.org/10.1007/978-981-13-8196-6_67 
  22. Jonathan Sarwono. 2006. Analisis Data Penelitian Menggunakan SPSS 13 (1st edition). Yogyakarta: Penerbit Andi.