Title :
Experimental and Numerical Research on Pressure Gradient of a Pneumatic Conveying Pipeline of Flyash
Author :
Ma Aichun ; Williams, K.C. ; Zhou Jiemin ; Jones, M.G.
Author_Institution :
Sch. of Energy Sci. & Eng., Central South Univ., Changsha, China
Abstract :
The flow characteristics of multiphase gas-solid flow in a pneumatic conveyor were investigated experimentally and numerically. Experiments were conducted to acquire the static pressure at certain cross-sections of a fine powder pneumatic conveying pipeline with a length of 26 m and an inner diameter of 53 mm. The conveyed material was fly ash with a mean particle size of 30 micron and the solids loading ratio was in the range of 20 to 70. Experimental data under nine different flow conditions were obtained and analysed. A numerical study of gas-solid flow was undertaken by means of commercial CFD software Fluent. The simulation was performed using the Euler-Euler approach, accounting for four-way coupling. The calculated results of pressure gradient were found to be in good agreement with the measured data.
Keywords :
computational fluid dynamics; conveyors; finite element analysis; flow simulation; fly ash; particle size; pipe flow; pipelines; pneumatic systems; powders; two-phase flow; Euler-Euler approach; Fluent software; commercial CFD software; fine powder pneumatic conveying pipeline; flow characteristics; flyash; four-way coupling; multiphase gas-solid flow; numerical simulation; particle size; pneumatic conveying pipeline; pneumatic conveyor; pressure gradient; size 26 m; size 30 micron; size 53 mm; solid loading ratio; Computational modeling; Mathematical model; Numerical models; Pipelines; Powders; Solids; Transducers; Euler-Euler model; Fluent; Numerical simulation; Pneumatic conveying; Pressure drop;
Conference_Titel :
Intelligent System Design and Engineering Application (ISDEA), 2012 Second International Conference on
Conference_Location :
Sanya, Hainan
Print_ISBN :
978-1-4577-2120-5
DOI :
10.1109/ISdea.2012.693
