02178nas a2200229   4500008004100000022001400041245009200055210006900147260009900216300001200315490000700327520132100334653000801655653001601663653003101679653002701710100003001737700001801767700001501785700002201800856012601822       2016                        eng d  a0955-598600aMixing studies in unbaffled stirred tank reactor using electrical resistance tomography0 aMixing studies in unbaffled stirred tank reactor using electrica  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcMAR  a110-1210 v473 a<p>Unbaffled stirred tanks are extensively used in chemical process industries for variety of applications including semi-batch reactions. In un-baffled stirred tanks, impeller rotation generates a vortex and reactants are added into this vortex. There is a growing interest towards understanding the mixing performance of such unbaffled stirred vessels. The present work is aimed at providing experimental results on mixing time and solid particle distribution inside an unbaffled vessel using electrical resistance tomography (ERT). A methodology for using ERT for characterizing vortex and mixing in unbaffled stirred vessel was established. The ERT was used to measure the mixing time with and without solid particles (glass beads, 250 mu m) in a stirred reactor. In this study, ERT technique was effectively applied for imaging solid-liquid flow and developed suitable data processing methodologies. It observed that estimated liquid phase mixing time for Un-baffled vessel was more as compared to baffled vessel. Radial solid concentration profiles showed Gaussian distribution inside the vessel. The presented methodology of using ERT and experimental results will be useful for designing and estimating mixing and solid distribution in unbaffled stirred tanks. (C) 2016 Elsevier Ltd. All rights reserved.</p>10aERT10aMixing time10aRadial solid concentration10aUnbaffled stirred tank1 aSardeshpande, Madhavi, V.1 aKumar, Gaurav1 aAditya, T.1 aRanade, Vivek, V.  uhttps://library.ncl.res.in/content/mixing-studies-unbaffled-stirred-tank-reactor-using-electrical-resistance-tomography-0