کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
225345 464489 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling nonelectrostatic and electrostatic powder coating
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Modeling nonelectrostatic and electrostatic powder coating
چکیده انگلیسی

The effect of particle size, density, charge and air velocity on transfer efficiency, evenness and separation of mixtures during powder coating was investigated using modeling and experimentation. Electrostatic and nonelectrostatic coating was tested using 28, 234 and 342 μm NaCl and 195 μm starch powders. Transfer efficiency increased as particle size, density or charge increased or as air velocity decreased. Evenness increased as particle size or density decreased, as velocity increased, or as charge increased to a peak. Electrostatic coating produced higher transfer efficiency and evenness than nonelectrostatic coating. Improvement in transfer efficiency and evenness due to electrostatics increased as NaCl size, density, charge or air velocity decreased. Powder mixtures did not separate by size during coating but did separate by density and charge. Starch was affected more by the collisions and charging than NaCl, which caused the separation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Engineering - Volume 83, Issue 4, December 2007, Pages 550–561
نویسندگان
, ,