Development and performance analysis of a novel agitated vessel

Gomadurai, C.; Kaliannan, Saravanan; Eldho, Abraham; Nadarajan, Deepa

doi:10.1007/s11814-015-0264-y

Cited by 4 publications

(3 citation statements)

References 22 publications

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“…Ju et al [7] designed a novel gasinducing impeller and studied its critical impeller speed. In addition, other researchers, such as Chinnasamy et al, [3] Zieverink et al, [8] and Wang et al [9] also studied the critical impeller speed. These research findings or correlations can provide helpful and useful references for further research and design of the selfinducing impellers.…”

Section: Introductionmentioning

confidence: 99%

“…In the past decades, some researchers have studied self-inducing gas-liquid stirred tanks, and developed a series of self-inducing impellers, such as hollow self-aspirating impellers, [1,2] rotor-stator devices, [3] vortex ingesting impellers, [4,5] etc. For the self-inducing stirred tank, the key parameters include critical impeller speed, gas induction flow rate, gas holdup, power consumption, etc.…”

mentioning

confidence: 99%

“…Critical impeller speed (N cr ) refers to the minimum speed at which gas is induced to the tank and the gas-liquid dispersion occurs. In addition, other researchers, such as Chinnasamy et al, [3] Zieverink et al, [8] and Wang et al [9] also studied the critical impeller speed. Sawant and Joshi, [6] for example, investigated a wide variety of self-inducing impellers, and developed a critical impeller speed correlation as the function of impeller diameter, submersion of the gas out orifices, and physical property.…”

mentioning

confidence: 99%

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CFD simulation of hydrodynamics characteristics in a tank stirred by a hollow self‐inducing impeller

Chen²,

Ke-feng

et al. 2018

Can J Chem Eng

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Hollow self-inducing impellers are often used in gas-liquid stirred tanks in many industrial processes. To understand the hydrodynamics characteristics of this type of stirred tank under aerated and unaerated conditions, a computational fluid dynamics (CFD) simulation study was conducted. The predicted gas self-inducing flow rate, power consumption, and impeller power number were compared with the experimental data in the literature and discussed. Under unaerated conditions, liquid level in the hollow shaft relies on the impeller speed, and is slightly influenced by the impeller clearance. Self-inducing impeller power number remains almost unchanged with impeller speed, while increasing with the rise of the impeller clearance. Under aerated conditions, gas is easy to accumulate in the centre of the upper and lower circulation loops. Gas self-inducing flow rate, global gas holdup, and power consumption increase with higher impeller speed. The critical impeller speed for gas self-induction decreases with higher impeller clearance. At the same impeller speed, gas self-inducing flow rate and global gas holdup increase, while power consumption reduces with increasing of impeller clearance.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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CFD simulation of hydrodynamics characteristics in a tank stirred by a hollow self‐inducing impeller

Chen²,

Ke-feng

et al. 2018

Can J Chem Eng

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Hydrodynamics of gas-liquid and biophase-gas-liquid systems in stirred tanks of different scales

Cudak

Rakoczy

2022

Korean J. Chem. Eng.

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Hydrodynamics of two- and three-phase systems in an agitated vessel with two agitators

Cudak

2024

Polish Journal of Chemical Technology

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The effect of the agitators configuration, the agitator speed, the volumetric gas flow rate, the sucrose concentration in aqueous solution, and the yeast suspension concentration on the hydrodynamics of two- or three-phase systems in an agitated vessel with two agitators has been presented in this paper. The gas hold-up and the average residence time of the bubbles were measured in agitated vessel with a liquid height of H = 2D and the internal diameter of D = 0.288 m. The study was carried out for gas-liquid and biophase-gas-liquid systems, where the gas phase was air, the liquid phase was distilled water or an aqueous solution of sucrose (c = 2.5% mass., 5% mass.), and the biophase was a suspension of Saccharomyces cerevisiae yeast (ys = 1% mass.). The research results were analysed taking into account the influence of the type of the upper or lower agitator, agitator speed, gas flow rate, and type of liquid in the system on the gas hold-up and the average residence time of the gas bubbles. The experimental results were mathematically described.

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Development and performance analysis of a novel agitated vessel

Cited by 4 publications

References 22 publications

CFD simulation of hydrodynamics characteristics in a tank stirred by a hollow self‐inducing impeller

CFD simulation of hydrodynamics characteristics in a tank stirred by a hollow self‐inducing impeller

Hydrodynamics of gas-liquid and biophase-gas-liquid systems in stirred tanks of different scales

Hydrodynamics of two- and three-phase systems in an agitated vessel with two agitators

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