Smart RTD for Multiphase Flow Systems

0382657 - ÚCHP 2013 RIV GB eng J - Journal Article
Šimčík, Miroslav - Růžička, Marek - Mota, A. - Teixeira, J. A.
Smart RTD for Multiphase Flow Systems.
Chemical Engineering Research and Design. Roč. 90, č. 11 (2012), s. 1739-1749. ISSN 0263-8762. E-ISSN 1744-3563
R&D Projects: GA ČR GA104/07/1110; GA MŠMT(CZ) LG11014
Grant - others:FCT(PT) SFRH/BD/37082/2007
Institutional support: RVO:67985858
Keywords : residence time * fluid particle age * RTD
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Impact factor: 1.927, year: 2012

A relatively new concept is presented for evaluation of the fluid age distribution a = a(x, t) within the interior of an apparatus. In the standard RTD approach, the tracer study is performed and the residence time distribution is obtained. In the new approach denoted as SRTD, the fluid age is considered as the field quantity and the governing equation is formulated for its spatio-temporal distribution within the flow domain. There are only few studies devoted to this alternative approach, which typically concern only the single-phase flow systems. In this contribution we investigate its applicability also to multiphase systems. In the case of a bubble column, both the RTD and SRTD concepts are employed and discussed. The results are calculated numerically and compared with the experimental observations.
Permanent Link: http://hdl.handle.net/11104/0216303