Investigation of variation of inner blade height of the five blade runner on the kaplan turbine against turbine power

The Kaplan turbine is a water-driven turbine. A low head is required to run this turbine. A turbine designed to get maximum power the design must be seen from the turbine runner construction to get optimal results. This study aims to find the construction of 5-blades runner with variants of the inne...

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Bibliographic Details
Main Authors: Sirojuddin, Tony, Dewi, N. S., Zahara, A. A., Jumhur, A. A.
Format: Conference Proceeding
Language:English
Subjects:
Efficiency
Flow simulation
Maximum power
Power efficiency
Software
Turbines
Water discharge
Online Access:Get full text
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Summary:The Kaplan turbine is a water-driven turbine. A low head is required to run this turbine. A turbine designed to get maximum power the design must be seen from the turbine runner construction to get optimal results. This study aims to find the construction of 5-blades runner with variants of the inner blade profile height of-5 mm, parallel, +5 mm, +10 mm, and +15 mm from the outer blade profile height to obtain power efficiency. The gross head is 5.25 m, the water discharge is 0.125 m³/s, the theoretical power is 6.1312 kW. The first step is to design the blade profile using NACA 2412, then test the strength of the blade profile material using software and a flow test using flow simulation software. The simulation results show that the runner blade RB-4 variant produces the best power and efficiency. During the momentary stop condition, it generates a power of 5.85360 kW with an efficiency of 95.47% and in a rotating condition, it generates apower of 6.07732 kW with an efficiency of 99.12%.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0195100