Characterization of gas-liquid flows in stirred vessels using pressure and torque fluctuations

TitleCharacterization of gas-liquid flows in stirred vessels using pressure and torque fluctuations
Publication TypeJournal Article
Year of Publication2005
AuthorsKhopkar, AR, Panaskar, SS, Pandit, AB, Ranade, VV
JournalIndustrial & Engineering Chemistry Research
Volume44
Issue9
Pagination3298-3311
Date PublishedAPR
Type of ArticleArticle
ISSN0888-5885
Abstract

Gas-liquid flows in a stirred vessel exhibit different flow regimes and demonstrate complex interaction of transport processes with varying spatio-temporal scales. The knowledge of key space and time scales of fluid dynamics is important for designing and enhancing the performance of gas-liquid stirred reactor. The present study uses simple, robust, and nonintrusive experimental techniques (torque and pressure sensors) to characterize the fluid dynamics in a gas-liquid stirred vessel. Time series obtained from the pressure and torque sensors were analyzed to develop criteria for flow regime identification. Further analyses of torque and pressure time series were done to extract valuable information of different time scales of fluid dynamics. The detailed analysis of torque and wall pressure fluctuations provided not only an insight into the fluid dynamics but also a possible opportunity to on-line monitoring of gas-liquid flows in stirred vessel.

DOI10.1021/ie0493412
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)2.567
Divison category: 
Chemical Engineering & Process Development