66 0

Parameter-based performance evaluation and optimization of a capacitive deionization desalination process

Title
Parameter-based performance evaluation and optimization of a capacitive deionization desalination process
Author
김우승
Keywords
Capacitive deionization; Water desalination; Performance evaluation; Performance optimization; Genetic algorithm
Issue Date
2018-07
Publisher
ELSEVIER SCIENCE BV
Citation
DESALINATION, v. 437, Page. 133-143
Abstract
Capacitive deionization (CDI) is an emerging alternative desalination technology that electrochemically purifies brackish water using electrically polarized capacitive electrodes. This research focuses on the performance of the CDI system. A number of performance criteria were used to assess the desalination system based on the requirements. The performance of the CDI system was assessed in terms of lowest effluent water concentration during the deionization process (mM), specific energy consumption either per gram of salt adsorbed (kJ/g) or per liter of fresh water recovered (J/L), accumulated desalinated water concentration (ppm), salt ions adsorbed in electrodes (g), and the volume of freshwater recovered (L) for different operating parameters. Furthermore, the performance of the desalination system was optimized based on operating parameters of flow rate, applied voltage, cell volume, and capacitance of the CDI cell. Three optimization techniques were suggested according to desalination requirements. Single-objective and multi-objective genetic algorithms (GA) were used to optimize the performance of the CDI system subject to constrained decision variables. The feasible solution obtained through GA optimization showed significant improvement in CDI system performance. Furthermore, the optimized results suggest different optimal solutions based on specific needs, such as maximum salt ion adsorption, lowest desalination energy consumption, high volume of desalinated water, or purest water extracted.
URI
https://www.sciencedirect.com/science/article/pii/S0011916417316314http://repository.hanyang.ac.kr/handle/20.500.11754/81233
ISSN
0011-9164
DOI
10.1016/j.desal.2018.02.023
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE