Comparison of Numerical Simulation and Experiment of Designed Vortex Type Micro hydro Water Turbine

다국어 초록 (Multilingual Abstract)

Vortex type's micro hydro water turbine is a new technology for harvesting energy from water which the performance is still providing more c hallenge . After h aving designed the vortex type water turbine in previous work, a laboratory scale experimental apparatus is built to prove the design and to val idate numerical simulations of the turbine The important design parameters such as torque, powe r, and efficiency are considered. It is found that the CFD results gives higher t orque , power, and efficiency compared to experiments results with a similar tren d This is due to no feature in the used CFD software in evaluating mechanical friction that ha ppened in experim ents device , for more specific in torque meter used Head of CFD for discharge of 2.7 L/s and 2.8 L/s are 0.06 m and 0.06 m while from experimen t is 0.07 m and 0.072 respectively. A NSYS has been used for CFD simulation.

참고문헌 (Reference)

1 Hite Jr., J. E, "Velocity of Air Core Vortices at Hydraulic Intakes" 120 : 284-297, 1994

2 Einstein, H. A, "Steady vortex flow in a real fluid" 10 (10): 483-496, 1955

3 Nishi, Y, "Perf ormance and Flow Field of a Gravitation Vortex type Water Turbine" 2017

4 Amalia, E, "Manufacture of Design Result of Micro hydro Turbine"

5 Rankine W. J. M, "Manual of applied mechanics" C. Griffen Co 1858

6 Chen Y.L, "Hydraulic characteristics of a vertical vortex at hydraulic intakes" 19 (19): 143-149, 2007

7 International Energy Agency, "Global Energy Review 2021: Renewables" 2021

8 Rahman, M. M, "Experimental Study The Effects of Water Pressure and Turbine Blade Lengths and Numbers on the Model Free Vortex Power Genera tion System" 2 (2): 13-17, 2016

9 O dgaard A. J. J, "Discussion of Free surface air core vortex" ASCE 8 (8): 449-452, 1988

10 MihW.C.C, "Discu ssion of analysis of fine particle concentration in a combined vortex" ASCE 28 (28): 392-395, 1990

11 Abdul Muis ; Priyono Sutikno, "Design and Simulation of Very Low Head Axial Hydraulic Turbine with Variation of Swirl Velocity Criterion" 한국유체기계학회 7 (7): 68-79, 2014

12 Hamzah, N, "Design and Analysis of Vor tex type Micro hydro T urbine" Institute Technology Bandung, Indonesia 2020

13 Division of Energy and Mineral Resources of West Java Indonesia, "Data Profile and Statistic: Energy and Mineral Resources of West Java 2018" 2018

14 Shabara, H, "CFD Validation for Effici ent Gravitational Vort ex Pool System" 2015

15 Shabara, H, "C FD Simulation of Water Gravitation Vortex Pool Flow For Mini Hydropower Plants" 2015

16 Rahman, M.M, "A Review on the Development of Gravitational Water Vortex Power Plant as Alternative Renewable Energy Resources" 2017