کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4987999 1455293 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of direct contact membrane distillation based on a lumped-parameter dynamic predictive model
ترجمه فارسی عنوان
تجزیه و تحلیل تقطیر غشایی مستقیم با استفاده از مدل پیش بینی دینامیکی پارامترهای توزیع شده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
Membrane distillation (MD) is an emerging technology that has a great potential for sustainable water desalination. In order to pave the way for successful commercialization of MD-based water desalination techniques, adequate and accurate dynamical models of the process are essential. This paper presents the predictive capabilities of a lumped-parameter dynamic model for direct contact membrane distillation (DCMD) and discusses the results under wide range of steady-state and dynamic conditions. Unlike previous studies, the proposed model captures the time response of the spacial temperature distribution along the flow direction. It also directly solves for the local temperatures at the membrane interfaces, which allows to accurately model and calculate local flux values along with other intrinsic variables of great influence on the process, like the temperature polarization coefficient (TPC). The proposed model is based on energy and mass conservation principles and analogy between thermal and electrical systems. Experimental data was collected to validated the steady-state and dynamic responses of the model. The obtained results shows great agreement with the experimental data. The paper discusses the results of several simulations under various conditions to optimize the DCMD process efficiency and analyze its response. This demonstrates some potential applications of the proposed model to carry out scale up and design studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 402, 16 January 2017, Pages 50-61
نویسندگان
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