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The Dynamic Characteristics and Control of a Hydraulic Turbine
Measurement + Control, 1969 A dynamic model of a radial flow turbine was derived. The model was verified by tests on an experimental 5 hp Francis type turbine. The tests indicate that the model is adequate for control system design.
I. Djordjevic Dipl.Ing +3 more
doaj +1 more source
Влияние гидродинамических характеристик элементов проточной части на энергетические показатели радиально-осевой гидротурбины [PDF]
, 2010 В данной работе определяются гидродинамические характеристики элементов проточной части гидротурбины. Устанавливается влияние гидродинамических характеристик на формирование энергетических характеристик радиально-осевой гидротурбины. На основании опытных
Миронов, Константин Анатольевич +1 more
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Wildlife Biology, EarlyView.Renewable energy is vital for reducing carbon emissions and yet its infrastructure poses challenges to biodiversity. While the impacts of wind power on bats and raptors are well‐studied, the effects on elusive species remain largely unknown. The Eurasian woodcock Scolopax rusticola, a nocturnal forest bird, performs characteristic courtship flights at ...
Jan O. Engler +6 more
wiley +1 more source
Financial Management, EarlyView.ABSTRACT We examine how mergers and acquisitions (M&As) enable firms to adapt to climate policy shocks. Exploiting the adoption of the Nitrogen Oxides (NOx) Budget Trading Program (NBP) across US states as an exogenous shock, we find that firms with NOx‐emitting plants subject to the NBP are more likely to engage in M&As, particularly through vertical ...
Samer Adra +3 more
wiley +1 more source
Advances in Mechanical EngineeringBased on the velocity similarity theory, a test system for sediment wear flow around Francis turbine runner blades was established. The sediment wear test was carried out on the surface of Francis turbine runner blades with severe sediment wear before ...
Bing Yao +6 more
doaj +1 more source
Experimental rotordynamics and flow visualization approach for periodically reversed flows of a Francis - Type Pump - Turbine in generating mode at off - design operating conditions [PDF]
, 2014 A non-conventional tufting visualization method along with an image processing development and specific applied technique adapted to the flow conditions is proposed and implemented on a reduced scale model of a Francis-type reversible pump-turbine in ...
Guzmán Díaz, Sebastián
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Numerical and experimental design study of a regenerative pump [PDF]
, 2010 This paper presents the use of a commercial CFD code to simulate the flow-field within the regenerative pump and compare the CFD results with new experimental data.
Quail, Francis J. +2 more
core +1 more source
Biotechnology and Bioengineering, Volume 123, Issue 1, Page 116-133, January 2026.We show that pH and neutralization strategy strongly influence the growth, pellet morphology, and organic acid production of Aspergillus oryzae. Acidic and alkaline conditions lead to hairy, dispersed pellets, while near‐neutral environments favour compact pellet formation.
Lukas Hartmann +4 more
wiley +1 more source
Advances in Mechanical EngineeringThe Francis turbine stability is impacted significantly by the flow characteristics in its draft tube. In the case of a Francis turbine in a hydropower plant, numerical simulations were undertaken at the maximum and rated heads, respectively, under three
Yuanhang Hou +7 more
doaj +1 more source
Flow Modeling in the Wake of a Francis Turbine with Hydraulic Charge: Case of Songloulou-Cameroon [PDF]
Journal of Applied Fluid MechanicsCavitation 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.
R. D. Wafo +4 more
doaj +1 more source