CFD Simulation and Experimental Measurement of Gas Holdup and Liquid Interstitial Velocity in Internal Loop Airlift Reactor

0360904 - ÚCHP 2012 RIV GB eng J - Journal Article
Šimčík, Miroslav - Mota, A. - Růžička, Marek - Vicente, A. - Teixeira, J.
CFD Simulation and Experimental Measurement of Gas Holdup and Liquid Interstitial Velocity in Internal Loop Airlift Reactor.
Chemical Engineering Science. Roč. 66, č. 14 (2011), s. 3268-3279. ISSN 0009-2509. E-ISSN 1873-4405.
[International Conference on Gas–Liquid and Gas–Liquid–Solid Reactor Engineering /10./. Braga, 26.06.2011-29.06.2011]
R&D Projects: GA ČR GA104/07/1110
Grant - others:FCT(PT) SFRH/BD/37082/2007
Institutional research plan: CEZ:AV0Z40720504
Keywords : cfd * airlift * hydrodynamics
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Impact factor: 2.431, year: 2011

This paper documents experiments and CFD simulations of the hydrodynamics of our two-phase (water,air)laboratory internal loop air lift reactor(40l).The experiments and simulations were aimed at obtaining global flow characteristics(gasholdup and liquid interstitial velocity in the riser and in the downcomer)in our particular airlift configurations.The experiments and simulations were done for three different riser tubes with variable length and diameter.Gas(air)superficial velocities in riser were inrange from 1to7.5cm/s. Up to three circulation regimes were experimentally observed(no bubbles in downcomer,bubbles indowncomer but not circulating,and finally the circulating regime).
Permanent Link: http://hdl.handle.net/11104/0198346