کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7007974 1455262 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Concentration polarization and permeate flux variation in a vibration enhanced reverse osmosis membrane module
ترجمه فارسی عنوان
قطبی شدن غلظت و تغییر شار پراکنده در یک ماژول غشاء اسمز معکوس ارتعاش افزایش یافته است
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
The performance of a vibration enhanced reverse osmosis membrane module for desalination of artificial seawater was investigated with computational fluid dynamics (CFD) simulations and experiments. The computational model couples fluid dynamics with solutes transport inside the full length domain containing 'zigzag' spacers using a two dimensional, transient Large Eddy Simulation turbulence model. Both the local concentration dependent solute properties and variation of permeate flux over the membrane surface were predicted with the model. Membrane local permeate flux, concentration polarization, shear rate, and mass transfer were also calculated. The results suggest concentration polarization in the seawater desalination process could be reduced by imposing vibration on the reverse osmosis membrane. It was determined that the higher the vibration frequency the higher the membrane permeate flux while keeping the vibration amplitude constant. The CFD simulation predictions are validated against experimental data of permeate fluxes with good agreement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 433, 1 May 2018, Pages 75-88
نویسندگان
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