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pro vyhledávání: '"francis turbine"'
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Autor:
Mairim Hortensia Márquez-Romance, Adriana Mercedes Márquez-Romance, Bettys Farías -De Márquez, Edilberto Guevara-Pérez, Sergio Alejandro Pérez-Pacheco
Publikováno v:
Dyna, Vol 91, Iss 232 (2024)
This paper deals with the reactivation of three test benches of high, medium and low power electric generators for hydraulic energy conversion in the University of Carabobo Hydraulic Laboratory. The method involves three stages: i) Description of thr
Externí odkaz:
https://doaj.org/article/b5f05086db3f4454a20089993ff82338
Publikováno v:
Journal of Applied Fluid Mechanics, Vol 17, Iss 4, Pp 770-784 (2024)
The hydraulic turbines, especially Francis turbines, frequently run at part load (PL) conditions to meet the dynamic energy needs. The flow field at the runner exit changes significantly with a change in the operating point. At PL, flow instabilities
Externí odkaz:
https://doaj.org/article/e0fc2f4e1b104de4ba13fd4034ad4c73
Publikováno v:
Journal of Applied Fluid Mechanics, Vol 17, Iss 4, Pp 926-938 (2024)
Cavitation in hydraulic installations is still a major concern when it comes to producing electricity. We are aware of the danger of cavitation and the damage it can cause. We have carried out a study of the behavior of the Francis de song lou lou tu
Externí odkaz:
https://doaj.org/article/620ed564702542e5a9c72390113ce80b
Publikováno v:
Applied Sciences, Vol 14, Iss 17, p 7461 (2024)
Investigating the flow performance of Francis turbines from model to prototype is a complex but essential process for ensuring reliable and efficient turbine operation in hydropower plants. It ensures that Francis turbine designs operate efficiently
Externí odkaz:
https://doaj.org/article/8fbb1e1b85e54330963f4b6e5f7eb65c
Autor:
Georgi Todorov, Ivan Kralov, Konstantin Kamberov, Evtim Zahariev, Yavor Sofronov, Blagovest Zlatev
Publikováno v:
Water, Vol 16, Iss 16, p 2252 (2024)
In this paper, analyses of Francis turbine failures for powerful Pumped Hydraulic Energy Storage (PHES) are conducted. The structure is part of PHES Chaira, Bulgaria (HA4—Hydro-Aggregate 4). The aim of the study is to assess the structure-to-concre
Externí odkaz:
https://doaj.org/article/81340844ec6d4147831a55c502b38bb8
Publikováno v:
Journal of Fluid Science and Technology, Vol 19, Iss 2, Pp JFST0017-JFST0017 (2024)
The objective of this study is to reveal the frequency characteristics caused by Von Karman excitation observed at the stationary field of a Francis turbine. The multiple equidistant frequency (frequency band) of the integer multiple of rotation freq
Externí odkaz:
https://doaj.org/article/dc994e7f7cfb4f3698b34d6fdb6f06a5
Publikováno v:
Guan'gai paishui xuebao, Vol 42, Iss 9, Pp 46-52 (2023)
【Background】 Technical renovation of turbine equipment in hydropower plant has attracted increased attention due to its low investment, quick return and high economic benefit. The purpose of modifying turbine equipment in hydropower station is to
Externí odkaz:
https://doaj.org/article/43997c4aaa164b23b9a823416d0338ad
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 17, Iss 1 (2023)
Precessing vortex rope (PVR) plays a key role in inducing hydraulic resonance in Francis turbines operating at partial load, possibly degrading power plant stability and availability. Air injection into the runner cone is a suitable mitigating altern
Externí odkaz:
https://doaj.org/article/04074f7d25dc4a5b955d4c1fb466be63
Publikováno v:
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", Vol 7, Iss 1, Pp 47-54 (2023)
A technique for designing the blade systems of Francis turbine is proposed. Starting with the determination the main parameters of the turbine components, where it is compatible with the operation of a hydraulic turbine at a given head. Also, the d
Externí odkaz:
https://doaj.org/article/95c74b1b6d644d0c8a4261e4133d8c3a