Effect of blade angle on turbine efficiency of a Spiral Horizontal Axis Hydro Turbine
| Autor: | Wiroon Monatrakul, Ratchaphon Suntivarakorn |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Horizontal axis
Materials science Turbine blade Blade (geometry) business.industry 010102 general mathematics Mechanics Computational fluid dynamics 01 natural sciences Turbine 010305 fluids & plasmas law.invention law 0103 physical sciences 0101 mathematics business Maximum torque Wells turbine Spiral |
| Zdroj: | Energy Procedia. 138:811-816 |
| ISSN: | 1876-6102 |
| DOI: | 10.1016/j.egypro.2017.10.075 |
| Popis: | This paper presents the effect of blade angle on turbine efficiency for a spiral horizontal axis hydro turbine. Modeling and a computational fluid dynamic (CFD) analysis were performed in order to determine the maximum torque of the turbine. The turbine blade angle was varied to 15, 18, 21, and 30 degrees at water velocities of 1, 1.5, and 2 m/s. Findings from the calculations were compared with a conventional 3-bladed axial turbine under conditions with and without a collection chamber. Findings from the study reveal that turbine efficiency with a collection chamber is higher than that of free-flow, and blade angle has a significant effect on turbine efficiency. |
| Databáze: | OpenAIRE |
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