کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
622990 1455321 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Persian Gulf desalination using air gap membrane distillation: Numerical simulation and theoretical study
ترجمه فارسی عنوان
نمک زدایی خلیج فارس با استفاده از تقطیر غشای هوا: شبیه سازی عددی و مطالعه نظری
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
A simultaneous heat and mass transfer model in air gap membrane distillation has been developed and validated with experimental data using MATLAB, in order to enhance its performance in desalination of Persian Gulf and to get more flux. The effect of operating parameters including feed temperature, concentration and velocity, condensate fluid temperature and velocity, thickness of air gap of permeate side, heat transfer coefficient (HTC) on permeate flux has been considered. The influence of some membrane characteristics including its thickness, tortuosity, porosity, and pore size distribution on permeate flux has also been studied. The results revealed that increase of feed temperature and velocity, HTC, membrane porosity and pore size distribution has improved the permeate flux. In contrast, the permeate flux decreased with feed concentration and air gap distance as operation parameters, and thickness and tortuosity as membrane characteristics. The temperature polarization coefficient decreased with feed temperature and reduced while thermal conductivity of the membrane material decreased. At elevated temperatures, increasing of HTC affects more strongly on permeate flux; i.e. a 25% increase in flux at 70 °C reduced to 14% at 50 °C. Comprising to experimental data, just about 6% average deviation was observed for this ultra-simple model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 374, 15 October 2015, Pages 92-100
نویسندگان
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