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Correlations for Anchors and Helical Ribbons

Uhl (1970), Harry and Uhl (1973), and Nishikawa et al. (1975) have summarized all previous work. Ishibashi et al. (1979) and Rautenbach and Bollenrath (1979) have published the latest works. Coyle et al. (1970) have presented very useful experimental data. Nagata et al. (1970) and Mitsuishi and Miyairi (1973) are of interest. The correlations by Harry and Uhl (1973) and Ishibashi et al. (1979) are recommended. The reconunended impeller geometries (Penney, 1983) are given in Table 14-4 and the applicable correlation parameters are given at the bottom of Table 14-3. [Pg.881]

Example 14-1 Turbine Impeller. Determine the process-side heat transfer coefficient for Problem 15.9, page 460, from McCabe et al. (1993). A turbine-agitated (6BD) vessel of diameter T = 2 m contains 6233 kg of a dilute aqueous solution at 40°C. The agitator is a standard-geometry (thus L = Ls) six-blade disk impeller of diameter D = m and N = 140 rpm. Determine the vessel wall heat transfer coefficient. [Pg.882]

We first need to consider the system geometry. Let s calculate the batch height (i.e., H). [Pg.882]

the batch is what we refer to as a square batch (i.e., H = T). We need to use the correlation from Table 14-3 for a 6BD and the vessel wall. [Pg.882]

Example 14.2 Helical Ribbon Impeller. Determine the process-side heat transfer coefficient for the tank blending design example for a helical ribbon impeller (Bakker and Gates, 1995)  [Pg.882]


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