ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Definition and Determination of Mixing Time in Gas Agitated Liquid Baths
G. G. Krishna MurthyJohn F. Elliott
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1992 Volume 32 Issue 2 Pages 190-195

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Abstract

Definition of mixing time has been examined more closely and the reported concentration vs. time traces were analyzed to determine mixing time. The obtained values of mixing time were compared with those estimated theoretically, employing numerical model of Krishna Murthy. The comparisons suggested that the mixing time values do not depend on the locations of the measuring probe or tracer injection point. Only an improper technique and instruments, or the misunderstanding of the definition of the degree of mixing, led some in the literature to believe that the mixing time was a function of location of tracer injection and position of the measuring probe. It was, therefore, concluded that the true characteristic value of mixing time, for a given set of operating conditions, should be independent of location of measuring probe and tracer injection.

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