Document Details Document Type : Article In Journal  Document Title : Potential Drop & Ionic Flux in Desalting Electrodialysis Units فاقد الجهد والتدفق الايوني في وحدات الإعذاب بالديلزة الكهربائية   Subject : Thermal Engineering  Document Language : English  Abstract : In this paper, the differential equations governing the ionic flux, current intensity and potential drop for an electrodialysis (ED) unit are derived in terms of ionic concentration, ionic diffusion coefficient in both water and membranes, ionic electric transfer numbers and membrane properties. These equations are solved to obtain the unit potential difference together with the ionic flux of counter and co-ions through the membranes. The power required for the unit is obtained by multiplying the potential drop by the integral of the current intensity along the flow passage. The minimum power required is calculated and compared with an approximate analysis for the ED unit at different working conditions. The ratio between minimum power and approximate power ranges from 62-46 percent at Cfof2000 ppm to 26-19 percent at Cfof 10000 ppm by using compartment thickness of 0.5-1 mm, respectively.  ISSN : 1319-1047  Journal Name : Engineering Sciences Journal  Volume : 1  Issue Number : 1  Publishing Year : 1409 AH 1989 AD  Article Type : Article  Added Date : Wednesday, July 13, 2011  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email سمير السيد علي Ali, Samir Alsayed Investigator Doctorate eng-dean@kau.edu.sa محمد علي درويش Darwish, Mohamed Ali Researcher Doctorate eng-dean@kau.edu.sa قدري قتحي فتح الله Fathalah, K. F. Researcher Doctorate eng-dean@kau.edu.sa Files File Name Type Description  29948.pdf pdf Potential Drop & Ionic Flux in Desalting Electrodialysis Units Back To Researches Page