Results 81 to 90 of about 18,394 (248)
New patterns in high-speed granular flows
, 2014 We report on new patterns in high-speed flows of granular materials obtained by means of extensive numerical simulations. These patterns emerge from the destabilization of unidirectional flows upon increase of mass holdup and inclination angle, and are ...
Brodu, Nicolas +3 more
core +5 more sources
Dynamic modeling of three-phase upflow fixed-bed reactor including pore diffusion [PDF]
, 2002 The dynamics of a three-phase upflow fixed-bed reactor are investigated using a non-isothermal heterogeneous model including gas–liquid and liquid–solid mass transfer and diffusion/reaction phenomena inside the catalyst.
A.M Wilhelm +16 more
core +4 more sources
Journal of Engineering, 2016 In wide range of chemical, petrochemical and energy processes, it is not possible to manage without slurry bubble column reactors. In this investigation, time average local gas holdup was recorded for three different height to diameter (H/D) ratios 3, 4 ...
Yasser Imad Abdulaziz
doaj +2 more sources
International Journal of Chemical Engineering, 2018 The dynamic behaviors of gas-liquid two-phase flow were simulated in a lab-scale intermittent bubble column by Euler-Euler two-fluid model coupled with the PBM (population balance model) using two different liquid phases, i.e., Newtonian fluid (water ...
Zheng Xipeng +4 more
doaj +1 more source
Gas holdup in three-phase immobilized-cell bioreactors
Applied Biochemistry and Biotechnology, 1990 A number of studies in the published literature deal with gas holdup in three-phase reactors. However, very few address the cases in which the solid density approaches that of the liquid phases and in which low gas velocities are involved. These conditions are commonly encountered in immobilized-cell bubble columns and in fluidized-bed bioreactors ...
Rakesh Bajpai +2 more
openaire +2 more sources
Bubble Column Hydrodynamic Study with Experimental Investigation and CFD Computations
مجلة النهرين للعلوم الهندسية, 2008 By achieving simulation of hydrodynamics in a bubble column reactor, have taken an important step towards designing an efficient slurry reactor for large-scale conversion of synthesis gas to liquid hydrocarbons.
Naseer Habobi +2 more
doaj
Interphase Momentum Study in a Slurry Bubble Column
Chemical Engineering Transactions, 2013 Eulerian three-dimensional transient simulations have been conducted to study the hydrodynamics of three-phase flow inside a slurry bubble column with intermediate and high concentration of solid particles.
J.L. Silva Jr +4 more
doaj +1 more source
KEMAMPUAN KOLOM GELEMBUNG PANCARAN (JET BUBBLE COLUMN)UNTUK MEREDUKSI AMONIA DENGAN UDARA STRIPPING [PDF]
, 2014 Kolom gelembung pancaran (jet bubble column) merupakan salah satu alat perpindahan massa antar fase gas dan cair yang dapat diaplikasikan untuk mereduksi kosentrasi amonia dalam limbah pupuk urea dengan cara udara stripping.
Didiek Hari Nugroho
core
Pengaruh Nozzle Terhadap Aspek Hidrodinamika Kinerja Kolom Gelembung Pancaran
Jurnal Rekayasa Kimia & Lingkungan, 2014 Kolom gelembung pancaran merupakan salah satu alat perpindahan massa antara fasa gas dan cair. Penelitian ini bermaksud untuk mempelajari pengaruh nozzle terhadap aspek hidrodinamika antara lain: kedalaman penetrasi gelembung (Z), holdup gas (eg), dan ...
Didiek Hari Nugroho +2 more
doaj +1 more source
Candidate Selection and Assessment of The Benefits of Velocity Strings On The Dunbar Field [PDF]
, 2012 Imperial Users ...
Fadipe, Damola, Fadipe, Damola
core