Can I read Gas-inducing Impeller Design and Performance Characteristics on EtoBox?

Gas-inducing Impeller Design and Performance Characteristics by S.E. Forrester; C.D. Rielly; K.J. Carpenter is a Engineering article available to read on EtoBox.

What is Gas-inducing Impeller Design and Performance Characteristics about?

A theoretical and experimental study on the design and performance characteristics of gas-inducing impellers is presented. In particular, the model developed by Evans et al. (1991, A.I.Ch.E. Spring National Meeting, Houston, TX, Paper 33e) is critically reviewed and, as a result, improvements to the kinetic energy pressure loss analysis and to the initial conditions are proposed. In addition, the model is successfully extended to account for multiple gas outlet orifice on each blade. Experimental measurements of the power consumption, rate of gas induction, mass transfer coefficient and detached bubble size for a partially optimised, 0.154 m diameter, six-bladed concave gas-inducing impeller are presented. A significant increase in the induced gas rate is observed by adding more outlet orifices to each blade. The principal advantage of using multiple orifices is that similar size bubbles are produced, compared to a single orifice, but larger interfacial areas are generated; the aerated power input is only slightly reduced from its ungassed value. Mass transfer coefficients, kLa, of the order of 0.02 s-1 are attainable for a single outlet orifice on each blade; kLa is significantly

Who reads Gas-inducing Impeller Design and Performance Characteristics?

Author

S.E. Forrester; C.D. Rielly; K.J. Carpenter

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0009-2509)

Published

1998

Language

EN

Field

Engineering (Physical Sciences)