Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Tailoring the pressure drop and fluid distribution of a capacitive deionization device
KTH, School of Engineering Sciences (SCI), Applied Physics, Functional Materials, FNM.
Sultan Qaboos Univ, Coll Engn, Dept Mech & Ind Engn, POB 33, Muscat 123, Oman..
Sultan Qaboos Univ, Nanotechnol Res Ctr, POB 17, Muscat 123, Oman..
Sultan Qaboos Univ, Nanotechnol Res Ctr, POB 17, Muscat 123, Oman.;Sultan Qaboos Univ, Petr & Chem Engn Dept, Coll Engn, POB 33, Muscat 123, Oman..
Show others and affiliations
2019 (English)In: Desalination, ISSN 0011-9164, E-ISSN 1873-4464, Vol. 449, p. 111-117Article in journal (Refereed) Published
Abstract [en]

The performance of a capacitive deionization (CDI) device is governed by complex relations between the electrode material properties, fluid velocity and fluid distribution within the device. In order to maximize fluid (water) interaction with the electrodes, the relationships between fluid flow and electrode material properties are explored here to develop novel CDI architectures which reduce the pressure drop, improve surface utilization factor and improve the electrode salt adsorption capacity. Using activated carbon cloth (ACC) as the electrode material, the pressure drop across the CDI device is quantified with respect to flow scheme (flow-between and flow-through CDI modes) used. Computational fluid dynamic (CFD) models are developed to study and optimize the fluid velocity and distribution in order to minimize the device fluid pressure losses. The model predictions are verified by constructing the conceptualized CDI devices and correlating the theoretical and experimentally obtained pressure drops, salt adsorption capacities and fluid flow parameters. The results indicate that up to 60% reduction in pressure drop and similar to 35% increase in specific salt adsorption capacity can be achieved by simple changes to the input-output port architecture of the CDI units. The results describe a method to considerably lower energy consumption in commercial CDI devices.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2019. Vol. 449, p. 111-117
Keywords [en]
Capacitive deionization (CDI), Pressure drop, Activated carbon cloth (ACC), Computational fluid dynamics, Fluid distribution
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-239965DOI: 10.1016/j.desal.2018.10.021ISI: 000451103100012Scopus ID: 2-s2.0-85055569498OAI: oai:DiVA.org:kth-239965DiVA, id: diva2:1269736
Funder
Mistra - The Swedish Foundation for Strategic Environmental Research, 2015/31
Note

QC 20181211

Available from: 2018-12-11 Created: 2018-12-11 Last updated: 2019-03-18Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Laxman, KarthikDutta, Joydeep

Search in DiVA

By author/editor
Laxman, KarthikDutta, Joydeep
By organisation
Functional Materials, FNM
In the same journal
Desalination
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 205 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf