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AIChE Journal, 2023
Biomass fast pyrolysis is a promising technology to produce available char and high‐value gas due to its green and sustainable ability. In the current work, the biomass fast pyrolysis in draft tube spouted bed has been numerically investigated via the ...
Haoran Sun +4 more
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Biomass fast pyrolysis is a promising technology to produce available char and high‐value gas due to its green and sustainable ability. In the current work, the biomass fast pyrolysis in draft tube spouted bed has been numerically investigated via the ...
Haoran Sun +4 more
semanticscholar +1 more source
Renewable Energy, 2021
When a Francis turbine operates over an extended range of regimes far from the best efficiency point, the formation of a helical precessing vortex rope can lead to reduced efficiency, severe pressure fluctuations, and power swings.
Xing Zhou +3 more
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When a Francis turbine operates over an extended range of regimes far from the best efficiency point, the formation of a helical precessing vortex rope can lead to reduced efficiency, severe pressure fluctuations, and power swings.
Xing Zhou +3 more
semanticscholar +1 more source
, 2021
Hydropower is a clean and renewable source of energy which is widely used to generate electric power and stabilize the power grid. It can respond quickly to any change in demand with the flexibility to operate over a wide range of time scales.
Sandeep Kumar, M. Cervantes, B. Gandhi
semanticscholar +1 more source
Hydropower is a clean and renewable source of energy which is widely used to generate electric power and stabilize the power grid. It can respond quickly to any change in demand with the flexibility to operate over a wide range of time scales.
Sandeep Kumar, M. Cervantes, B. Gandhi
semanticscholar +1 more source
Journal of Fluids Engineering, 2022
The off-design operation of Francis turbines results in the onset of flow instabilities. These instabilities lead to severe pressure pulsations, power swings, fatigue damage, and torque fluctuations in the turbine unit. Axial water jet injection in the
S. Khullar +3 more
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The off-design operation of Francis turbines results in the onset of flow instabilities. These instabilities lead to severe pressure pulsations, power swings, fatigue damage, and torque fluctuations in the turbine unit. Axial water jet injection in the
S. Khullar +3 more
semanticscholar +1 more source
The Physics of Fluids, 2022
The pumped-storage hydropower station is the most reliable, economic, long-term, large capacity, and mature energy storage technology in the power system, and it is an important component of renewable energy.
Xianghui He +5 more
semanticscholar +1 more source
The pumped-storage hydropower station is the most reliable, economic, long-term, large capacity, and mature energy storage technology in the power system, and it is an important component of renewable energy.
Xianghui He +5 more
semanticscholar +1 more source
Drying of particulate materials in draft tube conical spouted beds: Energy analysis
, 2021Drying is a highly energy-intensive process and dryers are considered one of the most energy-consuming industrial equipment. Nevertheless, the energy contribution of the draft tube in the spouted bed has hardly been studied.
R. Brito +4 more
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Effect of draft tube geometry on pressure drop in draft tube conical spouted beds
The Canadian Journal of Chemical Engineering, 2013AbstractA hydrodynamic study of conical spouted beds equipped with draft tubes of different configurations have been carried out for fine and coarse particles belonging to Geldart groups D and B, respectively. The draft tubes used are conventional non‐porous tubes and open‐sided tubes, and runs have been carried out following a design of experiments in
Haritz Altzibar +3 more
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Effect of draft tube position on the hydrodynamics of a draft tube slurry bubble column
The Chemical Engineering Journal and the Biochemical Engineering Journal, 1995Abstract Two- and three-phase hydrodynamic studies were conducted in an air lift bubble column with an internal loop. The bubble column had a conical distributor at the bottom, through which the gas was sparged, creating a liquid or slurry circulation from the draft tube to be annular region.
F.F. Pironti +3 more
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Spouting with a porous draft‐tube
The Canadian Journal of Chemical Engineering, 1983AbstractParticle motion and gas distribution have been measured in 0.3 m spouted beds with porous and solid wall draft‐tubes. Particle velocity in the annulus varied with gas rate and bed geometry. Narrow particle residence time distributions were observed under all conditions.
J. K. Claflin, A. G. Fane
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