کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7008190 | 1455298 | 2016 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of the effectiveness of anti-scalants in suppressing scale deposition on a heated surface
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A widely used technique for controlling scale deposition in desalination practice is by dosage of anti-scalants. Fundamental techniques for assessing the relative effectiveness of different anti-scalants are of considerable interest. The objective of the present research was to extend a technique characterizing the effectiveness of anti-scalants by identifying the threshold concentration at which scale deposition is unaffected by transport hydrodynamics and is purely surface controlled. A lower threshold level denotes higher inhibition effectiveness. The system investigated consisted of an electrically heated annular flow heat exchanger enabling measurement of calcium sulfate scale deposition on a stainless steel heating surface at a constant surface temperature. Application of the technique is illustrated by scale deposition measurements performed at varying Reynolds numbers in the absence and presence of three anti-scalants and at different scale deposition temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 397, 1 November 2016, Pages 38-42
Journal: Desalination - Volume 397, 1 November 2016, Pages 38-42
نویسندگان
Xianhui Li, Hilla Shemer, David Hasson, Raphael Semiat,