Sizing Impellers for Agitated Aerobic Fermenters
نویسنده
چکیده
PROPER DESIGN OF IMPELLERS FOR INDUCING gas dispersion in fermenters is a widely published topic that has typically emphasized such issues as agitator power, liquid holdup and flooding (1). Recent articles have focused on the advantages that various impeller configurations may have in fermenters (2, 3). This article describes the merits of different relative impeller sizes and explains how design parameters, such as the ratio of impeller diameter (D) to tank diameter (T) or D/T, affect a fermenter’s performance and cost. Illustrative examples are used to quantify these differences.
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