Design of Low Flow Undershot Type Water Turbine

E. Y. Setyawan, S. Djiwo, D. H. Praswanto, P Suwandono, P. Siagian

Abstract

Many water sources around us which have kinetic energy to run waterwheels are not optimally utilized. This energy can be converted into an energy source that can produce electricity. Therefore this study produced a design of a waterwheel that could be used in low-flow rivers to produce electricity by adding generators. Waterwheel modeling using Ansys is calculated based on flow assumptions. Modeling using this system provides advantages in the form of computational power efficiency, the stability of numerical calculations and the accuracy of the resulting solutions. Numerical analysis of the waterwheel is assumed that the waterwheel is half floating on the surface of the water. As stated in the limitation of the problem that the incoming water flowing at a speed of 5 m/s from the flow moves the wheel. The flow rate of water that hit the blade on the waterwheel causes the waterwheel to rotate which is pressured by the flow of water with a number of 12 blades. With a relatively simple design, the waterwheel produces a wheel rotation I of 91 Rpm and II of 78 Rpm, with a torque of 39.2 N by using some analysis of this design can be applied to river flow with low flow velocity. The relatively simple design makes it easy to be produced and maintenance. River flow used is in the Malang District with a flow velocity of 1 m/s gets a power of 1128 W on waterwheel I while on waterwheel II gets a power of 967 W.

Keywords

Water Turbine, Undershot, Low Flow

Article Metrics

Abstract view : 225 times
PDF view : 136 times

Full Text:

PDF

References

Panwar NL, Kaushik SC, Surendra K. Role of renewable energy sources in environmental protection: a review. Renewable and Sustainable Energy Reviews 2011;15:1513–24.

Yuksek O, Komurcu MI, Yuksel I, Kaygusuz K. The role of hydropower in meeting Turkey's electric energy demand. Energy Policy 2006;34:3093–103.

Yuksel I. Hydropower in Turkey for a clean and sustainable energy future. Renewable and Sustainable Energy Reviews 2008;12:1622–40.

Yukse, I “As a renewable energy hydropower for sustainable development in Turkey” Renewable and Sustainable Energy Reviews 14 (2010) 3213–3219

Vashisht AK. Current status of the traditional watermills of the Himalayan region and the need of technical improvements for increasing their energy effiency. Appl Energy 2012;98:307-15.

Miller G, Kauppert K. Performance characteristics of water wheels. J Hydraul Res 2004;42(5):45-60.

Denny M. The effiency of overshot and undershot waterwheels. Eur J Phys 2004;25:193-202.

Prasad, V, Gahlot, V K & Krinnamachar, P “CFD approach for design optimization and validation for axial flow hydraulic turbine” Indian Journal of Engineering & Material secince Vol. 16, August 2009,pp 229-236

Jain, S, Saini,R P & Kumar, A “CFD approach for prediction of efficiency of Francis turbine” IGHEM-2010, oct. 21-23, AHEC, IIT Roorkee, India

Kim, Y T, Nam, S H, Cho, Y J, Hwang, Y, C, Choi,Y D, Nam, C D & Lee, Y H “Tubular-Type hydro turbine performance for variable guide vane opening by CFD” The fifth international conference on fluid mechanics, Aug 15-19,2007, Shanghai, Chaina.

] E.Y Setyawan, S Djiwo and T Sugiarto, Simulation Model of Fluid Flow and Temperature Distribution in Porous Media Using Cylinder Convergent and Divergent Nozzle, Internasional Journal of Technology and Sciences, 1 (2017) 1-10.

M. H. Nguyen, H. Jeong, and C. Yang, “A study on flow fields and performance of water wheel turbine using experimental and numerical analyses,” Sci. China Technol. Sci., vol. 61, no. 3, pp. 464–474, 2018.

Denny M. “The efficiency of overshot and undershot water wheels”.European journal of physics. Vol. 25, no 193-202,2014

Refbacks

  • There are currently no refbacks.