Results 21 to 30 of about 10,987,897 (316)

Gas holdup in a reciprocating plate bioreactor: Non-Newtonian - liquid phase [PDF]

open access: yesHemijska Industrija, 2002
The gas holdup was studied in non-newtonian liquids in a gas-liquid and gas-liquid-solid reciprocating plate bioreactor. Aqueous solutions of carboxy methyl cellulose (CMC; Lucel, Lučane, Yugoslavia) of different degrees of polymerization (PP 200 and PP ...
Naseva Olivera S.   +5 more
doaj   +2 more sources

Application of Imaging Algorithms for Gas–Water Two-Phase Array Fiber Holdup Meters in Horizontal Wells [PDF]

open access: yesSensors
The flow dynamics of low-yield horizontal wells demonstrate considerable complexity and unpredictability, chiefly attributable to the structural attributes of the wellbore and the interplay of gas–water two-phase flow.
Ao Li   +8 more
doaj   +2 more sources

A Newly Developed Empirical Predictive Model for the Dispersed Phase (DP) Holdup in Rotating Disc Contactors

open access: yesChemEngineering, 2021
Newly novel developed correlations were derived to predict the dispersed phase (DP) holdup in a rotating disc contactor (RDC) extraction column. DP holdup is one of the significant parameters in the design of liquid–liquid contactors and for calculating ...
Ayham M. I. Al-Rahawi   +6 more
doaj   +2 more sources

Numerical Simulation and Holdup Prediction of Oil-Water Two-Phase in Low Yield Shale Oil Near Horizontal Wells

open access: yesCejing jishu
The production of shale oil wells is typically low, and logging instruments such as the flow scanning imager (FSI) may exhibit poor turbine response in low-production wells, leading to measurement deviations and reduced interpretation accuracy.
QIN Honglong   +3 more
doaj   +2 more sources

Application of Array Imaging Algorithms for Water Holdup Measurement in Gas–Water Two-Phase Flow Within Horizontal Wells [PDF]

open access: yesSensors
Gas–water two-phase flow in horizontal and inclined wells is significantly influenced by gravitational forces and spatial asymmetry around the wellbore, resulting in complex and variable flow patterns.
Haimin Guo   +7 more
doaj   +2 more sources

Impact of Solid Particle Concentration and Liquid Circulation on Gas Holdup in Counter-Current Slurry Bubble Columns

open access: yesFluids
In this study, in a three-phase reactor with a rectangular cross-section, the effects of liquid circulation rates and solid particle concentration on gas holdup and bubble size distribution (BSD) were investigated.
Sadra Mahmoudi, Mark W. Hlawitschka
doaj   +2 more sources

The gas holdup in a multiphase reciprocating plate column filled with carboxymethylcellulose solutions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Gas holdup was investigated in a gas-liquid and gas-liquid-solid reciprocating plate column (RPC) under various operation conditions. Aqueous carboxymethyl cellulose (sodium salt, CMC) solutions were used as the liquid phase, the solid phase was spheres ...
Stamenković Ivica S.   +5 more
doaj   +3 more sources

Methods and application for water holdup calculation and flowing image based on array electromagnetic wave instrument in horizontal water-oil wells [PDF]

open access: yesYouqicang pingjia yu kaifa, 2023
The accurate calculation of the water holdup and the inversion of fluid distribution for multi-phase flow play a crucial role in understanding the development performance in horizontal wells.
CHEN Meng,XIE Weifeng,ZHANG Yu,YANG Guofeng,LIU Xiangjun
doaj   +3 more sources

Hydrodynamics of a pilot plant spray extraction column [PDF]

open access: yesActa Periodica Technologica, 2018
The hydrodynamic characteristics of the liquid-liquid system of toluene-water in a pilot plant spray extraction column were experimentally determined.
Sovilj Milan N.   +2 more
doaj   +1 more source

Gas-liquid plug flow liquid holdup measurement using semantic segmentation

open access: yesYou-qi chuyun, 2021
Liquid holdup is one of the most important parameters of gas-liquid two-phase flow. Affected by the image noise, the traditional liquid holdup measurement method based on image processing is difficult to accurately extract the gas-liquid interface ...
Fachun LIANG   +4 more
doaj   +1 more source

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