کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
226454 464542 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observer-based tracking control of superficial temperature
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Observer-based tracking control of superficial temperature
چکیده انگلیسی

Heat treatments are recommended to decontaminate the surfaces of food. An ideal thermal treatment consists in carrying the superficial layer of food at a predetermined temperature according to a ramping period, an eventual plateau, and a decreasing period. An advanced process control solution is required to force the superficial temperature to perfectly respect the imposed profile. To predict this superficial temperature, we firstly develop an accurate simulator that takes into account heat and mass diffusion, evaporation or condensation and shrinkage. We secondly estimate, using a reverse technique, a crucial parameter of this process: the water activity. A control approach was designed to allow an efficient tracking control of a set point temperature. As this law requires the knowledge of internal temperatures, we develop an observer to avoid intrusive methods. The simulator has been validated online and technical modifications of the experimental bench are needed to implement the control law.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Engineering - Volume 76, Issue 1, September 2006, Pages 70–78
نویسندگان
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