A slugh-churn flow model for small-diameter airlift pumps

Cachard, F. de; Delhaye, J. M.

doi:10.1016/0301-9322(96)00003-1

Cited by 82 publications

(46 citation statements)

References 16 publications

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“…For example if the flow is annular the liquid is lifted under the effect of shear forces between the gas the liquid interface. On the other hand, the closest performance to the maximum is found for churn flow pattern [15].…”

Section: Introductionmentioning

confidence: 89%

“…It has been also concluded that if these airlifts are optimized in design and operation they could replace other methods of achieving these desired conditions [8,[11][12][13] It has been concluded by many studies that airlift pumps run at maximum performance if operated at the slug flow pattern conditions. In this case, the air bubbles "slugs" are almost in the same sizes as the pipe diameter making them ideal for pushing the liquid up the pipe as if they were pistons pumping the water to the top of the pipe [14][15][16]. Looking at the other flow patterns, it can be seen why it would not be ideal if the airlift pump run in those flow patterns.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimizing Airlift Pumps for Aquaculture Applications

Bukhari¹,

Ahmed²

2017

Proceedings of the 4th International Conference of Fluid Flow, Heat and Mass Transfer (FFHMT'17)

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-The performance of airlift pump is dependent on the complex two-phase flow analysis that has yet not been optimized to its full potential for aquaculture applications. In this study, initial effort on the optimization of airlift pump performance for the highest efficiencies has been carried out. Two different optimization techniques were used in the present study including the minimum of constrained nonlinear multivariable function and the Genetic Algorithm. Both method were evaluated experimentally at different pump operating conditions. The experimental results show reasonable agreement with the Genetic Algorithm over a wide range of submergence ratio and air flow rates. Although, the optimization algorithms found to offer simple analysis when trying to setup an airlift pump for an aquaculture application, however, two-phase flow modelling taking into account the operating flow pattern is considered to be the best in evaluating the airlift pump performance.

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Optimizing Airlift Pumps for Aquaculture Applications

Bukhari¹,

Ahmed²

2017

Proceedings of the 4th International Conference of Fluid Flow, Heat and Mass Transfer (FFHMT'17)

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show abstract

“…The coefficient, C has approximate value of 20 in a turbulentflow regime. Martinelli value, X [20], which is introduced to calculate / 2 l0 ; can be obtained as follows:…”

Section: Theoretical Modelmentioning

confidence: 99%

An experimental study on the performance of guided bubble pump with multiple tubes

Lin

Liu

Danqing

et al. 2016

Applied Thermal Engineering

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“…The effect of viscosity on film thickness has been evaluated using the correlation proposed by [7] which gives a geometrical relation between film thickness, į and void fraction in the Taylor bubble, ߝ . This is given as:…”

Section: Liquid Film Thicknessmentioning

confidence: 99%