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CFD prediction of concentration polarization phenomena in spacer-filled channels for reverse electrodialysis
Open accessAbstract
Abstract Salinity Gradient Power generation through Reverse Electrodialysis (SGP-RE) is a promising technology to convert the chemical potential difference of a salinity gradient into electric energy. In SGP-RE systems, as in most membrane processes, concentration polarization phenomena may affect the theoretical driving force and thus the performance of the process. Operating conditions, including the feed solution flow rate and concentration and the channels׳ geometrical configuration, may greatly influence both the polarization effect and the pumping energy consumption. The present work uses CFD to investigate the dependence of concentration polarization and pressure drop on flow rate, feeds concentration, current density and spacer features. Concentration polarization effects were found to be significant at low feed solution concentration (river water), but only secondary at higher concentrations (seawater and brine), thus suggesting that different optimization strategies should be employed depending on the feeds concentration. The features that a spacer-filled channel should possess for high efficiency and high current density SGP-RE applications were identified.
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Cited by
Electrodialysis desalination for water and wastewater: A review
Al-Amshawee, S., Yunus, M. Y. B. M., Azoddein, A. A. M., Hassell, D. G., Dakhil, I. H., & Hasan, H. A. (2020) · Chemical Engineering Journal · doi:10.1016/j.cej.2019.122231 · Cited by 964
Campione, A., Gurreri, L., Ciofalo, M., Micale, G., Tamburini, A., & Cipollina, A. (2018) · Desalination · doi:10.1016/j.desal.2017.12.044 · Cited by 588
Self-citationRecent developments and future perspectives of reverse electrodialysis technology: A review
Mei, Y., & Tang, C. Y. (2018) · Desalination · doi:10.1016/j.desal.2017.10.021 · Cited by 499
Salinity Gradients for Sustainable Energy: Primer, Progress, and Prospects
Yip, N. Y., Brogioli, D., Hamelers, H. V. M., & Nijmeijer, K. (2016) · Environmental Science & Technology · doi:10.1021/acs.est.6b03448 · Cited by 388
Tufa, R. A., Pawlowski, S., Veerman, J., Bouzek, K., Fontananova, E., di Profio, G., Velizarov, S., Goulão Crespo, J., Nijmeijer, K., & Curcio, E. (2018) · Applied Energy · doi:10.1016/j.apenergy.2018.04.111 · Cited by 312
Metadata
- Authors
- Gurreri, L., Tamburini, A., Cipollina, A., Micale, G., & Ciofalo, M.
- Venue
- Journal of Membrane Science
- Publisher
- Elsevier BV
- Published
- 2014-10
- Volume
- 468
- Pages
- 133-148
- ISSN
- 0376-7388 (ISSN-L)
- OpenAlex
- W1994194205
- Cited by
- 167
- References
- 0
- FWCI
- 6.62
- Type
- journal article
- Language
- en
- Open access
- green
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- Gurreri, L., Tamburini, A., Cipollina, A., Micale, G., & Ciofalo, M. (2014). CFD prediction of concentration polarization phenomena in spacer-filled channels for reverse electrodialysis. Journal of Membrane Science. https://doi.org/10.1016/j.memsci.2014.05.058
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