Study on Foreign Body Passage in an Ultra-Small Axial Flow Hydraulic Turbine

Yasuyuki Nishi; Tomoyuki Kobori; Yutaka Kobayashi; Terumi Inagaki; Norio Kikuchi

doi:10.5293/IJFMS.2020.13.1.068

추천

검색

질문

자료유형: 학술저널

저자정보: Yasuyuki Nishi (Ibaraki University) Tomoyuki Kobori (Ibaraki University) Yutaka Kobayashi (Ibaraki University) Terumi Inagaki (Ibaraki University) Norio Kikuchi (Ibasei)

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.13 No.1

발행연도: 2020.3

수록면: 68 - 78 (11page)

DOI: 10.5293/IJFMS.2020.13.1.068

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

Ultra-small axial flow hydraulic turbines, which are of the size of your palm, are a type of turbine that can be applied to the low heads of existing pipelines and open channels. However, due to their compact size, they are more likely to malfunction in case of foreign body contamination. In our study, we observed the passage of foreign bodies through an ultra-small axial flow hydraulic turbine and their encounter with the blocking mechanism of the turbine. We selected polyethylene ropes of varying lengths with a wire diameter of 5 mm to serve as foreign bodies. By varying the length of the rope, we were able to visually observe the movement of the foreign body. The turbine’s blocking mechanism can be broadly classified as guide vanes or runners. In the case of runner, blocking occurs when foreign bodies are bent and are caught at the leading edge of the blade. The passage rate through the hydraulic turbine is largely dependent on the passage rate at the runner section, which decreases proportionally with the length of the foreign body and the rotational speed of the blades.

#Small Hydro Power #Hydraulic Turbine #Axial Flow Turbine #Foreign Body Passage #Visualization

참고문헌 (16)

참고문헌 신청

C. S. Kaunda / 2014 / A technical discussion on microhydropower technology and its turbines / Renewable and Sustainable Energy Reviews 35:445~459

Akinori Furukawa / 2010 / Development of ducted Darrieus turbine for low head hydropower utilization / Current Applied Physics 10(2):128~132

T. Ikeda / 2010 / Performance of nano-hydraulic turbine utilizing waterfalls / Renewable Energy 35:293~300

Abdul Muis / 2014 / Design and Simulation of Very Low Head Axial Hydraulic Turbine with Variation of Swirl Velocity Criterion / International Journal of Fluid Machinery and Systems 7(2):68~79

H. M. Ramos / 2012 / Low-Head Energy Conversion : A Conceptual Design and Laboratory Investigation of a Microtubular Hydro Propeller / ISRN Mechanical Engineering 2012:1~10

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!