Experimental study on the performance of an air-lift pump for artificial upwelling

Fan, Wei; Chen, Jiawang; Pan, Yiwen; Huang, Haocai; Chen, Chen‐Tung Arthur; Chen, Ying

doi:10.1016/j.oceaneng.2012.11.014

Cited by 73 publications

(40 citation statements)

References 21 publications

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“…The energy consumption of airlifting system is closely related to the compressor's expansion type, which is defined as an isothermal expansion in this paper [11]. The airlifting efficiency can be calculated as Equation (8) [15,16].…”

Section: Energy Consumption Per Tonnage Of Mineral Modellingmentioning

confidence: 99%

“…The useful energy consumption of the airlifting system is defined as the anti-gravitational energy consumption of lifting mineral solids from seabed to pipe outlet. It can be calculated as Equation (9) [11,15,16].…”

Section: Energy Consumption Per Tonnage Of Mineral Modellingmentioning

confidence: 99%

“…Researches of both Hong et al and Nam-Cheol et al focused on the experiments and did not consider the corresponding theoretical explanation and analysis for their experimental data. Fan et al [11] researched airlifting pump performances utilized in an artificial upwelling. Almost all of these theoretical and experimental investigations are far away from the industrial scaled working conditions of DSM.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the literature review, airlifting technological consideration in DSM industry focuses on the transport performances influenced by the submergence ratio which is defined as the ratio between submergence and the total length of the pipe, mining depth, pipe diameter, gas flux rate, and particle diameter [5][6][7][8][9][10][11]. For the technological analysis of vertical transport in DSM industry, energy consumption lifting per tonnage of mineral and solid production rate were introduced by Ma et al [12].…”

Section: Introductionmentioning

confidence: 99%

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Technological and Profitable Analysis of Airlifting in Deep Sea Mining Systems

Rhee

Schott

2017

Minerals

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Airlifting technology utilized in deep-sea mining (DSM) industry was proposed in the 70s of last century, which was triggered by the discovery of vast amounts of mineral resources on the seabed. The objective of this paper is to assess the technological feasibility and profitability analyses in terms of solid production rate, energy consumption per tonnage of mineral, and profitability per tonnage of mineral. The effects of submergence ratio, pipe diameter, particle diameter, mining depth, and gas flux rate are investigated. The analysis is based on a numerical calculation performed in a Matlab environment. The research reported in this paper can assist to select an optimal transport plan for DSM projects depending on its solid production rate, energy consumption, and profitability.

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Section: Energy Consumption Per Tonnage Of Mineral Modellingmentioning

confidence: 99%

Section: Energy Consumption Per Tonnage Of Mineral Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Technological and Profitable Analysis of Airlifting in Deep Sea Mining Systems

Rhee

Schott

2017

Minerals

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“…The two-phase flows (liquid-gas) in the pipelines of air lifts are the best recognized. The investigations performed to date allowed to work out so-called flow structure maps for air lifts and mathematical models for simulations of the flows occurring there [42][43][44][45][46][47][48][49][50][51][52][53]. Investigations of air lifts made of rectangular [54] and crooked [55] pipes were also carried out.…”

Section: Introductionmentioning

confidence: 99%

Empirical Formulas for Calculation of Negative Pressure Difference in Vacuum Pipelines

Kalenik

2015

Water

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Abstract:The paper presents the analysis of results of empirical investigations of a negative pressure difference in vacuum pipelines with internal diameters of 57, 81, 102 mm. The investigations were performed in an experimental installation of a vacuum sewage system, built in a laboratory hall on a scale of 1:1. The paper contains a review of the literature concerning two-phase flows (liquid-gas) in horizontal, vertical and diagonal pipelines. It presents the construction and working principles of the experimental installation of vacuum sewage system in steady and unsteady conditions during a two-phase flow of water and air. It also presents a methodology for determination of formula for calculation of a negative pressure difference in vacuum pipelines. The results obtained from the measurements of the negative pressure difference Δpvr in the vacuum pipelines were analyzed and compared with the results of calculations of the negative pressure difference Δpvr, obtained from the determined formula. The values of the negative pressure difference Δpvr calculated for the vacuum pipelines with internal diameters of 57, 81, and 102 mm with the use of Formula (19) coincide with the values of Δpvr measured in the experimental installation of a vacuum sewage system. The dependence of the negative pressure difference Δpvr along the length of the vacuum pipelines on the set negative pressure in the vacuum container pvzp is linear. The smaller the vacuum pipeline diameter, the greater the negative pressure difference Δpvr is along its length.

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Investigation of the inner structure of gas–liquid flow in airlift pumps by laser‐high speed visualization technology

Wang

Jin

Huang

2020

Asia-Pacific J Chem Eng

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Experiments were conducted to investigate the inner structure of gas-liquid flow in airlift pumps by a laser Doppler velocimetry (LDV) system and a laserhigh speed photography. The measured central plane of the riser pipe was illustrated by a laser device, and the corresponding gas-liquid flow in this plane was recorded by a high speed camera. The results showed it was the wispy annular flow, rather than the annular flow, dominated the pump performance under a high gas flow rate. This wispy annular had a thick film with a maximal value 0.2 times of pipe diameter, and it kept pump working with a high output liquid flow rate at large gas flow rates. Moreover, new flow regime maps were presented with a function of accurately estimating the flow regime transition and presenting the airlift pump performance.

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Experimental study on the performance of an air-lift pump for artificial upwelling

Cited by 73 publications

References 21 publications

Technological and Profitable Analysis of Airlifting in Deep Sea Mining Systems

Technological and Profitable Analysis of Airlifting in Deep Sea Mining Systems

Empirical Formulas for Calculation of Negative Pressure Difference in Vacuum Pipelines

Investigation of the inner structure of gas–liquid flow in airlift pumps by laser‐high speed visualization technology

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