Effect of Baffles on Homogenous-Heterogeneous Regime In Two Phase Bubble Column With Non-Newtonian Liquid [PDF]
Engineering and Technology Journal, 2010 This work presents a comparison of the flow region in baffled and unbaffled bubble columns with Newtonian and non-Newtonian liquids. The experiments were carried out in column of 15 cm inside diameter and 2m height with aspect ratio (L/D=4.5), using ...
Asawer A. Alwasiti +2 more
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Hydrodynamics of an Airlift Column for Aeration in Molten Sulfur
Applied Sciences, 2021 The airlift column is a promising technology for the removal of volatile gas from high-viscosity molten sulfur. However, a detailed analysis is lacking on the hydrodynamic properties inside the column, due to the difficulty in flow behavior detection in ...
Junjie Wang +6 more
doaj +1 more source
The Effect of Surfactants on Characteristics of Hydrodynamic and Mass Transfer Coefficient in Gas-Liquid Dispersion Column [PDF]
Engineering and Technology Journal, 2007 This work studis the effect of liquid properties (water, solution 0.2-1.5 wt% for each of i-propanol, and n-butanol), temperature (26-55 oC) andsuperficial air velocity (1-15cm/s) on the gas holdup and mass transfercoefficient in air-liquid dispersion ...
Thamer Mohammed, Fadi Hanna
doaj +1 more source
Heterogeneous Batch Distillation Processes: Real System Optimisation [PDF]
, 2008 In this paper, optimisation of batch distillation processes is considered. It deals with real systems with rigorous simulation of the processes through the resolution full MESH differential algebraic equations. Specific software architecture is developed,
B. Kotai +41 more
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Experimental Analysis of Gas Holdup Measured by Gas Array Tool in Gas–Water Two Phase of Horizontal Well [PDF]
, 2021 Shuaifei Cui +3 more
openalex +1 more source
Attenuation law of MWD pulses in aerated drilling
Petroleum Exploration and Development, 2012 A mathematical model for predicting the attenuation of measurement while drilling (MWD) pressure pulses in aerated drilling was proposed using the two-phase flow model and considering the momentum and energy exchange at the phase interface, gravity of ...
Hongtao LI +5 more
doaj +1 more source
The dual effect of viscosity on bubble column hydrodynamics [PDF]
, 2017 Some authors, in the last decades, have observed the dual effect of viscosity on gas holdup and flow regime transition in small-diameter and small-scale bubble columns.
Fabio, Inzoli +3 more
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Effect of solids on flow regime transition in three-phase bubble columns [PDF]
, 2004 In bubble column reactors there are two principal flow regimes [1,2,3], the homogeneous (HoR) and the heterogeneous (HeR). These reactors have different behaviour in HoR and HeR, thus the dependences of the rates of mass, heat and momentum transfer on ...
Drahoš, J. +4 more
core
Gas holdup and flow regime transition in spider-sparger bubble column: Effect of liquid phase properties [PDF]
, 2017 This paper discusses the effects of the liquid velocity and the liquid phase properties on the gas holdup and the flow regime transition in a large-diameter and large-scale counter-current two-phase bubble column.
BESAGNI, GIORGIO +3 more
core +1 more source
The Prediction of liquid holdup in horizontal pipe with BP neural network
Energy Science & Engineering, 2020 Liquid holdup is one of the most critical factors for the formation of pipe effusion, which is closely related to the efficiency of pipe transportation.
Rongge Xiao +5 more
doaj +1 more source