Turbulence stirred tanks

Schwartzberg, H.E., and Treylsal, R. E. "Fluid and Particle Motion in Turbulent Stirred Tanks , Ind. Engng. Chem. Fundamentals 7 (1), (1968). 

Calabrese RV, Chang TPK, and Dang PT. Drop breakup in turbulent stirred-tank contactors. Part I Effect of dispersed-phase viscosity. AIChE J 1986 32 657-666. 

Calabrese RV, Wang CY, and Bryner NP. Drop breakup in turbulent stirred-tank. Part III Correlations for mean size and drop size distributions. AIChE J 19S6 32 677-681. 

Schwartzberc H.G., Treybal R.E., Fluid and particle motion in turbulent stirred tanks/Fluid motion, p. 1-6 Fluid artd particle rrtotion in turbulent stirred tanks/Particle motion, I. E. Fundamentals 7 (1968) 1, p. 6-12... 

Scale-up of Single Phase Non-Reactive Turbulent Stirred Tanks... 

Based on these experiments determine the value for the coefficient in the correlation for mass transfer in turbulent stirred tanks (Eq. 17-37aT... 

Sharma MM, Mashelkar RA. (1968) Absorption with chemical reaction in a bubble columns. In Pirie JM, editor. Mass transfer with chemical reaction. Proceedings of Symp. Tripartite Chem. Eng. Conf. (Montreal), Inst. Chem. Eng. (London), Symp. Ser., p 10-16. Schwartzberg HG, Treybal RE. (1968a) Fluid and particle motion in turbulent stirred tanks. 

Schwartzberg HG, Treybal RE. (1968b) Fluid and particle motion in turbulent stirred tanks. 

Wang, C. Y., and R. V. Calabrese (1986). Drop breakup in turbulent stirred tank contactors, AIChE J., 32, 667. 

The model developed by Coulaloglou and Tavlarides (1977) for turbulent stirred tanks applies to drops whose collision rates are determined by interaction with eddies that fall within the inertial subrange of isotropic turbulence (Lt d T ). For equal-sized drops, assuming uniform energy distribution throughout the vessel, the collision frequency is given by eq. (12-36). For unequal-size drops, these authors obtained... 

Although difficult to apply in practice, models for coalescence rate provide an appreciation for the physical phenomena that govern coalescence. They also provide an appreciation for why it is difficult to interpret stirred tank data or even to define the appropriate experiment. For instance, it can be clearly seen from eq. (12-49) to (12-51) that the collision frequency increases with e, whereas the coalescence efficiency decreases with e. For constant phase fraction, the number of drops also increases with e. The models for coalescence of equal-sized drops are quite useful to guide the interpretation of data that elucidate the time evolution of both mean diameter and drop size distribution during coalescence. To this end, Calabrese et al. (1993) extended the work of Coulaloglou and Tavlarides (1977) to include turbulent stirred tank models for rigid spheres and deformable drops with immobile and partially mobile interfaces. The later model accounts for the role of drop viscosity. In practice, models for unequal-sized drops are even more difficult to apply, but they do suggest that rates are size dependent. They are useful in the application of the population balance models discussed in Section 12-4. 

Numerous authors have developed models for coalescence frequency. These include the models of Muralidhar and Ramkrishna (1986), Das et al. (1987), Muralidhar et al. (1988), Tsouris and Tavlarides (1994), and Wright and Ramkrishna (1994), for turbulent stirred tanks, as well as those of Davis et al. (1989),... 

Calabrese, R. V., T. P. K. Chang, and P. T. Dang (1986a). Drop breakup in turbulent stirred-tank contactors 1. Effect of dispersed phase viscosity, AIChE J., 32(4), 657-666. Calabrese, R. V., C. Y. Wang, and N. P. Bryner (1986b). Drop breakup in turbulent stirred-tank contactors lit. Correlations for mean size and drop size distribution, AIChE J., 32(4), 677-681. 

H-property function in the Boltzmann H-theorem Liquid hight in standard turbulent stirred tank (m)... 

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