Pregled bibliografske jedinice broj: 248380
Solid Dispersion in an Agitated Vessel: The Effect of Impeller Location
Solid Dispersion in an Agitated Vessel: The Effect of Impeller Location // World Congress on Particle Technology – ; ; 5,
Orlando (FL): AIChE, 2006. (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 248380 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Solid Dispersion in an Agitated Vessel: The Effect of Impeller Location
Autori
Kuzmanić, Nenad ; Akrap, Marija ; Mitrović-Kessler, Edita
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
World Congress on Particle Technology – ; ; 5,
/ - Orlando (FL) : AIChE, 2006
Skup
World Congress on Particle Technology – ; ; 5,
Mjesto i datum
Orlando (FL), Sjedinjene Američke Države, 23.04.2006. - 27.04.2006
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Mixing; suspension; floating solids; dual-impeller system; complete drawdown
Sažetak
The basic motivation for the present work is to investigate capability of the agitated system provided with multiple impellers on the suspension of floating solid material in liquid. The effect of off-bottom impeller clearance as well as the spacing between impellers on the minimum impeller speed for complete solid suspension (FrJS), power consumption (P/m)JS and axial concentration profiles were investigated in single and double-impeller system using four-straight blade turbines (SBT). Experiments were performed in cylindrical flat bottom vessel with internal diameter of 0.30 m. Tap water and polyethylene particles (PEHD) were used as liquid and solid phase, respectively. The critical impeller speed for the complete suspension of floating solid particles, NJS, was determined using Joosten visual method, while power consumption was measured using torque meters produced by S. Himmelstein and Company. The local solids concentration from a slurry mixing tank have been measured by the withdrawal of sample from the vessel. On the basis of the experimental results it was observed that the presence of additional (second) impeller actually produced the reduction in the power consumption as well as decrease of the minimum impeller speed for the complete suspension of floating solid particles, NJS. The obtained results are strong function of the flow patterns structure created by impeller configuration applied. Flow patterns in mixing vessel was studied by visual observation using digital camera. Support for these observations was derived flow characteristics studied using VisiMix 2000 Turbulent.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo
