Heat Transfer Analysis of Sterilization of Canned Milk Using Computational Fluid Dynamics Simulations  

作　　者：Prateek Dhayal Narayansing Chhanwal Chinnaswamy Anandharamakrishnan 

机构地区：[1]Food Engineering Department, CSIR-Central Food Technological Research Institute, Mysore 570020, India

出　　处：《Journal of Food Science and Engineering》2013年第11期571-583,共13页食品科学与工程（英文版）（美国）

摘　　要：A uniform and effective heat distribution inside the canned milk is very crucial for achieving effective sterilization. It is extremely difficult to establish the temperature profile inside the canned milk during continuous industrial scale operation. Computational fluid dynamics （CFD） simulation can be a useful tool to determine the temperature distribution of the fluid inside the can during the sterilization process. A CFD model was developed for the sterilization of canned milk at 121 ~C. The simulation results were validated with the experimental measurements of temperatures. The formation and movement of slowest heating zone （SHZ） during the sterilization process was tracked. Moreover, effect of can position （vertical and horizontal） during processing on milk temperature distribution inside the can was also investigated. Higher Grashof and Rayleigh numbers were obtained for vertical positioning of can compared to horizontal can processing. Further, effectiveness of the process was calculated based on F-value and these results reinforced the positive effect of horizontal position of can during the sterilization process.

关 键 词：CFD HORIZONTAL STERILIZATION canned milk. 

分 类 号：S646[农业科学—蔬菜学] V211.3[农业科学—园艺学]