LAPSE:2022.0156
Published Article
LAPSE:2022.0156
Performance Characteristics in Runner of an Impulse Water Turbine with Splitter Blade
Lingdi Tang, Shouqi Yuan, Yue Tang, Zhijun Gao
December 6, 2022
The impulse water turbine is a promising energy conversion device that can be used as mechanical power or a micro hydro generator, and its application can effectively ease the current energy crisis. This paper aims to clarify the mechanism of liquid acting on runner blades, the hydraulic performance, and energy conversion characteristics in the runner domain of an impulse water turbine with a splitter blade by using experimental tests and numerical simulations. The runner was divided into seven areas along the flow direction, and the power variation in the runner domain was analyzed to reflect its energy conversion characteristics. The obtained results indicate that the critical area of the runner for doing the work is in the front half of the blades, while the rear area of the blades does relatively little work and even consumes the mechanical energy of the runner to produce negative work. The high energy area is concentrated in the flow passage facing the nozzle. The energy is gradually evenly distributed from the runner inlet to the runner outlet, and the negative energy caused by flow separation with high probability is gradually reduced. The clarification of the energy conversion performance is of great significance to improve the design of impulse water turbines.
Keywords
Energy Conversion, flow characteristics, impulse water turbine, runner domain
Subject
Suggested Citation
Tang L, Yuan S, Tang Y, Gao Z. Performance Characteristics in Runner of an Impulse Water Turbine with Splitter Blade. (2022). LAPSE:2022.0156
Author Affiliations
Tang L: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China; Key Laboratory of Water-Saving Irrigation Engineering, Ministry of Agriculture, Xinxiang 453000, China
Yuan S: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Tang Y: Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China
Gao Z: Jiangsu Wanagda Sprinkler Co., Ltd., Changzhou 213299, China
Journal Name
Processes
Volume
9
Issue
2
First Page
303
Year
2021
Publication Date
2021-02-05
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr9020303, Publication Type: Journal Article
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LAPSE:2022.0156
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doi:10.3390/pr9020303
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Dec 6, 2022
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CC BY 4.0
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[v1] (Original Submission)
Dec 6, 2022
 
Verified by curator on
Dec 6, 2022
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https://psecommunity.org/LAPSE:2022.0156
 
Original Submitter
Mina Naeini
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