文章基本信息

标题：Design of Stirrer Impeller with Variable Operational Speed for a Food Waste Homogenizer
本地全文：下载
作者：Kayode, Idris A. ; Ogedengbe, Emmanuel O. B. ; Rosen, Marc A. 等
期刊名称：Sustainability
印刷版ISSN：2071-1050
出版年度：2016
卷号：8
期号：5
出版社：MDPI, Open Access Journal
摘要：A conceptualized impeller called KIA is designed for impact agitation of food waste in a homogenizer. A comparative analysis of the performance of KIA is made with three conventional impeller types, Rushton, Anchor, and Pitched Blade. Solidâ€“liquid mixing of a moisture-rich food waste is simulated under various operational speeds, in order to compare the dispersions and thermal distributions at homogenous slurry conditions. Using SolidWorks, the design of the impellers employs an Application Programming Interface (API) which acts as the canvas for creating a graphical user interface (GUI )for automation of its assembly. A parametric analysis of the homogenizer, at varying operational speeds, enables the estimation of the critical speed of the mixing shaft diameter and the deflection under numerous mixing conditions and impeller configurations. The numerical simulation of the moisture-rich food waste (approximated as a Newtonian carrotâ€“orange soup) is performed with ANSYS CFX v.15.0. The velocity and temperature field distribution of the homogenizer for various impeller rotational speeds are analyzed. It is anticipated that the developed model will help in the selection of a suitable impeller for efficient mixing of food waste in the homogenizer.
关键词：food waste homogenizer; mixing; impeller; operational speed; critical speed; food waste; Shaft diameter