Results 1 to 10 of about 291,495 (261)

Performance Characteristics in Draft Tube - A Review

open access: yesJournal of Advanced Mechanical Sciences, 2022
The draft tube elbow was modelled using the fundamental geometry of GAMM Francis turbine. Its purpose was to design a draft tube with improved hydrodynamic performance This was accomplished by integrating unfasten resource and commercialized technologies
Arpit Pawar
doaj   +2 more sources

Particle Cycle Times in Draft Tube Conical Spouted Beds

open access: yesChemical Engineering Transactions, 2014
A hydrodynamic study of conical spouted beds equipped with draft tube has been carried out for glass beads. Runs have been carried out in conical spouted beds of different geometry according to a factorial design of experiments.
I. Estiati, H. Altzibar, M. Olazar
doaj   +2 more sources

Influence of the Geometric Factors of Conical Contactors and Draft Tubes on the Performance of Draft Tube Conical Spouted Beds

open access: yesChemical Engineering Transactions, 2013
A hydrodynamic study of conical spouted beds equipped with draft tube has been carried out for Geldart group D particles. Based on a design of experiments, the performance of conical spouted beds provided with draft tube has been studied by measuring ...
H. Altzibar, I. Estiati, M. Olazar
doaj   +2 more sources

Pressure Analysis in the Draft Tube of a Pump-Turbine under Steady and Transient Conditions

open access: yesEnergies, 2021
Pumped-storage power stations play a regulatory role in the power grid through frequent transition processes. The pressure pulsation in the draft tube of the pump-turbine under transient processes is important for safe operation, which is more intense ...
Jing Yang   +3 more
doaj   +1 more source

Experimental and Numerical Simulation Study on the Flow Characteristics of the Draft Tube in Francis Turbine

open access: yesMachines, 2022
The flow characteristics of the draft tube of a Francis turbine have a significant influence on turbine stability. Numerical simulations were performed for a Francis turbine under three different output conditions of 20%, 100%, and 120% at the rated and ...
Lei Ji   +7 more
doaj   +1 more source

Design of Experiments Applied to Francis Turbine Draft Tube to Minimize Pressure Pulsations and Energy Losses in Off-Design Conditions

open access: yesEnergies, 2021
This paper proposes an original approach to investigate the influence of the geometry of Francis turbines draft tube on pressure fluctuations and energy losses in off-design conditions.
Arthur Favrel   +3 more
doaj   +1 more source

Prediction of the particle circulation rate in a draft tube spouted bed suspension dryer [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
A model for predicting the particle circulation rate in a draft tube spouted bed dryer with inert particles is proposed and verified. The calculation algorithm requires three input values: the gas velocity in the draft tube one data point for the static ...
Arsenijević Zorana Lj.   +2 more
doaj   +3 more sources

PENENTUAN JENIS DRAFT TUBE BERDASARKAN NILAI HEAD RECOVERY DAN KINERJA TURBIN HYDROCOIL MENGGUNAKAN METODE COMPUTATIONAL FLUID DYNAMICS

open access: yesJurnal Teknik Mesin, 2023
A Microhydro Power Plant (MHP) with hydrocoil turbine in Sukajaya Lembang Village, Bandung, West Java, has been successfully designed. However, the velocity of the water flow after exiting the hydrocoil turbine is still relatively high, so there is still
Fahmi Hidayat   +2 more
doaj   +1 more source

Suppressing the Vortex Rope Oscillation and Pressure Fluctuations by the Air Admission in Propeller Hydro-Turbine Draft Tube [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
For the purpose of automatic generation control (AGC), a portion of the propeller hydro-turbine units in China is adjusted to operate within a restricted range of 75%-85% load using computer-controlled AGC strategies.
H. Wu   +9 more
doaj   +1 more source

Optimal Design of Double Stage Internal Loop Air-Lift Bioreactor

open access: yesEnergies, 2023
Biorefinery systems play a critical role in the transition towards a sustainable bioeconomy, and bioreactors are a key component in these systems.
Fernando Ramonet   +2 more
doaj   +1 more source

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