Zobrazeno 1 - 10
of 521
pro vyhledávání: '"sediment erosion"'
Autor:
Bei Qin, Xiao Chang, Jiayang Pang, Zhishun Yu, Jitao Liu, Wanquan Deng, Li Zhang, Bing Yao, Xiaobing Liu
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 12, Pp 5410-5417 (2024)
Abstract Developing highly accurate sediment erosion testing methods for Pelton turbine overflow components is challenging due to their irregularly curved surfaces. In this study, we designed a method to evaluate the sediment erosion of the Pelton tu
Externí odkaz:
https://doaj.org/article/7d2d6f8b3dbf49319934fad53532cfe0
Autor:
Bing Yao, Yijin Zhou, Baofu Wu, Jiayang Pang, Dengyun Jiang, Haiku Zhang, Jitao Liu, Bei Qin, Xiaobing Liu
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 10, Pp 4040-4056 (2024)
Abstract Pelton turbines functioning in sandy river environments often encounter difficulties due to the swift movement of sediment particles, leading to erosion and damage to overflow components. These challenges can result in operational instabilit
Externí odkaz:
https://doaj.org/article/581db6d23c604499b2458d194d14f668
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
Effective management of sediment transport in water bodies is crucial for maintaining navigational channels and reducing siltation in harbors. This study introduces the first effort in the development of a Field Instrument for Measuring Bed Erosion R
Externí odkaz:
https://doaj.org/article/fbe63316bf2f4e00a4cb92e0f4b43c18
Publikováno v:
Energies, Vol 17, Iss 23, p 5961 (2024)
Secondary flows in Francis turbines are induced by the presence of a gap between guide vanes and top–bottom covers and rotating–stationary geometries. The secondary flow developed in the clearance gap of guide vanes induces a leakage vortex that
Externí odkaz:
https://doaj.org/article/41df6d65245241f1bfc96a021067fa4b
Publikováno v:
Results in Engineering, Vol 22, Iss , Pp 102231- (2024)
Coandă-effect-based collection stands out as the foremost technology in polymetallic-nodule mining due to the absence of direct contact between the collector and the ocean floor. Yet, this collection method disturbs the ocean floor, and minimizing s
Externí odkaz:
https://doaj.org/article/09d8054b71a347669b9c8dcbeaf07853
Autor:
Jacob L. Vincent, Alicia M. Wilson
Publikováno v:
HardwareX, Vol 18, Iss , Pp e00532- (2024)
Knowledge of sediment erosion and deposition can be useful for a variety of engineering, marine science, and environmental applications, but collecting detailed time-series measurements of the sediment–water interface can be challenging, particular
Externí odkaz:
https://doaj.org/article/efbd97f2573d47b58b615c192fb54fc6
Autor:
Xinfeng Ge, Jie Sun, Dongdong Chu, Juan Liu, Ye Zhou, Hui Zhang, Lei Zhang, Huixiang Chen, Kan Kan, Maxime Binama, Yuan Zheng
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 36, Iss 1, Pp 1-27 (2023)
Abstract The Pelton turbine has been widely used to develop high-head water resources with sediments because of its advantages in life cycle costs. When a flood or monsoon season occurs, the sediment concentration in the river increases suddenly, cau
Externí odkaz:
https://doaj.org/article/2240a3845e6a4c0b866a8784989848e7
Autor:
Baig Mirza Umar, Zhengwei Wang, Sailesh Chitrakar, Bhola Thapa, Xingxing Huang, Ravi Poudel, Aaditya Karna
Publikováno v:
Energies, Vol 17, Iss 16, p 4006 (2024)
Sediment erosion of hydraulic turbines is a significant challenge in hydropower plants in mountainous regions like the European Alps, the Andes, and the Himalayan region. The erosive wear of Pelton runner buckets is influenced by a variety of factors
Externí odkaz:
https://doaj.org/article/8759f1dff5f4470384650f1f84e2be63
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 8, p 1344 (2024)
Numerical analysis of the sediment erosion of the balance valve in a buoyancy regulation system was performed. A numerical model for the two-phase flow inside the balance valve was constructed based on the discrete phase model. The sediment erosion r
Externí odkaz:
https://doaj.org/article/877fea1fa18d4710b2e6f952d34a4e4c
Autor:
Jiayang Pang, Xiao Chang, Yuanyuan Gang, Ziyao Zhou, Wenping Xiang, Lingjiu Zhou, Xiaobing Liu, Zhengwei Wang
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 5, p 777 (2024)
Sediment erosion damage is one of the main causes of structural failure in reaction turbine units. To study the mechanism through which sediment erosion affects the water-guiding mechanism of a reaction turbine unit, this study obtained the average c
Externí odkaz:
https://doaj.org/article/96875d86e3874beb94b95af6eec10748