Abstract
The results of an experimental analysis of the stirring of a liquid in a tank equipped with an eccentrically located propeller or HE 3 impeller are presented in the paper. Mixing time, power consumption and the distributions of the momentum and heat transfer coefficients on the tank wall as a function of the impeller eccentricity e / R were studied within the turbulent regime of the Newtonian liquid flow. The effects of the liquid pumping mode of the stirrer (up- or downwards) and the position of the measuring point at the plane r, ϕ of the tank cross section on the dimensionless mixing time Θ were found. Axial and angular distributions of the dimensionless shear rate γ • / n , friction coefficient f and heat transfer coefficient α l were identified on the cylindrical wall of the stirred tank (at the plane z, ϕ ). The profiles of the γ • / n , f and α l depend strongly on the eccentricity e / R , angular co-ordinate ϕ and liquid circulation imposed by the axial flow impeller. The results of the experimental studies were approximated mathematically (Eqs. (6)–(10)).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
