IJE TRANSACTIONS C: Aspects Vol. 28, No. 6 (June 2015) 823-831    Article in Press

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M. Arjmandi, O. Pirouzram and A. Ahmadpour
( Received: July 19, 2014 – Accepted: May 02, 2015 )

Abstract    Reliable estimation of the porous membranes neck-pore size distribution (NPSD) is the key element in the design and operation of all membrane separation processes. In this paper, a new approach is presented for reliable of NPSD of porous membranes using wet flow-state bubble point test data. For this purpose, a robust method based on the linear regularization theory is developed to extract NPSD of membranes from bubble point test data. The performance of the proposed method is tested using various experimental data. The predicted results clearly demonstrate that the proposed method can successfully predict the proper NPSD from a set of bubble point test data.


Keywords    Membrane; NPSD; regularization; cross-validation.


چکیده    تخمین قابل اعتماد توزیع سایز گردنه غشاها عنصر اصلی در طراحی و عملکرد همه فرایندهای جداسازی غشایی است. در این مقاله، یک رویکرد جدید برای تعیین قابل اعتماد توزیع اندازه گردنه حفرات غشاهای متخلخل با استفاده از داده‌های آزمایشگاهی حالت جریان تر ارائه داده شده است. برای این منظور، یک روش قدرتمند بر پایه تئوری ریگولاریزاسیون خطی برای به دست آوردن توزیع اندازه گردنه حفرات غشاها به کمک داده‌های آزمایش نقطه حباب گسترش داده شده است. کارایی این روش ارائه شده با استفاده از داده های آزمایشگاهی مختلف مورد آزمایش قرار گرفته است. نتایج پیش بینی شده به طور واضح نشان می دهد که این روش پیشنهادی به طور موفقیت آمیز می تواند توزیع اندازه منافذ قابل قبولی به کمک مجموعه ای از داده های آزمایش نقطه حباب پیش بینی کند.



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