Numerical and Experimental Analysis of Hydro Screw Turbine with Variable Pitch

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Hosseini Moghadam Omami a.; Yassi y.; NOURBAKHSH A.; NAJAFI A.F.

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Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:2 Page(s): 457-466

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Information Journal Paper

Title

Numerical and Experimental Analysis of Hydro Screw Turbine with Variable Pitch

Author(s)

Hosseini Moghadam Omami a. | Yassi y. | NOURBAKHSH A. | NAJAFI A.F. | Issue Writer Certificate

Keywords

Variable PitchQ1

ScrewQ1

Low HeadQ1

ArchimedesQ1

Abstract

Hydro Screw is a small micro hydro turbine. Due to increase in demand for clean energy production, a comprehensive project at the Iranian Research Organization for Science and Technology (IROST) for the design and construction of very small turbines (micro turbines), including hydro Screw, has been developed. Hydro Screw is suitable for a Low Head and discharge that does not have a guide vane and draft tube; thus, it is simple, small, inexpensive, and portable. This turbine, with a 15 cm blade diameter, can generate power up to 2 kW. Hydro Screw blade is inspired by the Archimedes turbine, and difference between them is that the blade pitch of hydro Screw is variable and horizontally mounted. In this project, the effect of spiral Variable Pitch on turbine has been studied numerically. Based on the results, it was found that the turbine had the best efficiency at a spiral pitch of 1. 5. Subsequently, the small model of hydro Screw was made and tested in the laboratory. The results of this study have been presented in the form of standard curves of turbine performance and the accuracy of the results has been proved by comparison of numerical and experimental results. The results show the integrity of the numerical calculations and, therefore, they can be used in line with next turbine studies. The results indicate that the maximum turbine output is between 62% and 68%.

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APA: Copy

Hosseini Moghadam Omami, a., Yassi, y., NOURBAKHSH, A., & NAJAFI, A.F.. (2019). Numerical and Experimental Analysis of Hydro Screw Turbine with Variable Pitch. MODARES MECHANICAL ENGINEERING, 19(2 ), 457-466. SID. https://sid.ir/paper/179670/en

Vancouver: Copy

Hosseini Moghadam Omami a., Yassi y., NOURBAKHSH A., NAJAFI A.F.. Numerical and Experimental Analysis of Hydro Screw Turbine with Variable Pitch. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(2 ):457-466. Available from: https://sid.ir/paper/179670/en

IEEE: Copy

a. Hosseini Moghadam Omami, y. Yassi, A. NOURBAKHSH, and A.F. NAJAFI, “Numerical and Experimental Analysis of Hydro Screw Turbine with Variable Pitch,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 2 , pp. 457–466, 2019, [Online]. Available: https://sid.ir/paper/179670/en

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