کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6488433 | 43033 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystallisation in concentrated systems: A modelling approach
ترجمه فارسی عنوان
بلور سازی در سیستم های متمرکز: رویکرد مدل سازی
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کلمات کلیدی
انجماد تغییر فاز، سیستم های متمرکز، مدل سازی، کاهش انرژی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی
Water crystallisation in concentrated systems has been studied using a combination of mathematical modelling and experimental work. Two different freezing models have been employed to describe primary and secondary mechanisms (i.e. non-seeded and seed-induced processes, respectively) in sucrose solutions up to 60% (w/w). Differential Scanning Calorimetry (DSC) has been employed to characterise the phase change of the binary water-sucrose system in primary processes, and the kinetic and thermodynamic parameters obtained were coupled to the heat transfer equation to obtain the product temperature distribution. A recently developed method has been also employed to measure crystal growth rates in seed-induced crystallisation systems. Simulated results for the secondary crystallisation mechanism were able to reproduce experimentally observed trends for growth rates. An evaluation of the energy consumption during freezing/crystallisation processes has been carried out to assess each mechanism performance (crystallisation will occur at temperatures approximately 20 °C higher in seeded processes) considering different process conditions and product formulations (i.e. solids and air fractions).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Bioproducts Processing - Volume 100, Part B, October 2016, Pages 525-534
Journal: Food and Bioproducts Processing - Volume 100, Part B, October 2016, Pages 525-534
نویسندگان
E. Lopez-Quiroga, R. Wang, O. Gouseti, P.J. Fryer, S. Bakalis,