Optimal design and operation of electrodialysis for brackish-water desalination and for high-salinity brine concentration
Electrodialysis (ED) is a desalination technology that has been deployed commercially for decades. However, few studies in the literature have looked at the optimal design and operation of these systems, especially for the concentration of high-salinity brines. In this paper, a set of constraints is...
| Main Authors: | , , , |
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| Format: | Article |
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Elsevier
2018
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| Online Access: | http://hdl.handle.net/1721.1/113009 https://orcid.org/0000-0003-3559-9167 https://orcid.org/0000-0002-2901-0638 |
| _version_ | 1826217766041944064 |
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| author | Nayar, Kishor G. Chehayeb, Karim Malek Farhat, Daniel Maan Lienhard, John H. |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Nayar, Kishor G. Chehayeb, Karim Malek Farhat, Daniel Maan Lienhard, John H. |
| author_sort | Nayar, Kishor G. |
| collection | MIT |
| description | Electrodialysis (ED) is a desalination technology that has been deployed commercially for decades. However, few studies in the literature have looked at the optimal design and operation of these systems, especially for the concentration of high-salinity brines. In this paper, a set of constraints is defined to allow a fair comparison between different system sizes, designs, and operating conditions. The design and operation of ED are studied for the applications of brackish-water desalination and of high-salinity brine concentration for a fixed system size. The set of variables that determine the power consumption of a fixed-size system is reduced to include only the channel height and the velocity, with all the other design and operation variables depending on these two variables. After studying the minimization of power consumption for a fixed system size, the minimum costs associated with the different system sizes are studied, and the differing trends in brackish-water and high-salinity applications are compared. Finally this paper presents the effect of the cost modeling parameters on the trends of the optimal system size, current density, length, channel height, and velocity for the two applications studied. |
| first_indexed | 2024-09-23T17:08:49Z |
| format | Article |
| id | mit-1721.1/113009 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T17:08:49Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1130092022-10-03T10:45:56Z Optimal design and operation of electrodialysis for brackish-water desalination and for high-salinity brine concentration Nayar, Kishor G. Chehayeb, Karim Malek Farhat, Daniel Maan Lienhard, John H. Massachusetts Institute of Technology. Department of Mechanical Engineering Chehayeb, Karim Malek Farhat, Daniel Maan Lienhard, John H. Electrodialysis (ED) is a desalination technology that has been deployed commercially for decades. However, few studies in the literature have looked at the optimal design and operation of these systems, especially for the concentration of high-salinity brines. In this paper, a set of constraints is defined to allow a fair comparison between different system sizes, designs, and operating conditions. The design and operation of ED are studied for the applications of brackish-water desalination and of high-salinity brine concentration for a fixed system size. The set of variables that determine the power consumption of a fixed-size system is reduced to include only the channel height and the velocity, with all the other design and operation variables depending on these two variables. After studying the minimization of power consumption for a fixed system size, the minimum costs associated with the different system sizes are studied, and the differing trends in brackish-water and high-salinity applications are compared. Finally this paper presents the effect of the cost modeling parameters on the trends of the optimal system size, current density, length, channel height, and velocity for the two applications studied. 2018-01-08T15:45:38Z 2018-01-08T15:45:38Z 2017-07 2017-06 2018-01-05T13:33:49Z Article http://purl.org/eprint/type/JournalArticle 0011-9164 1873-4464 http://hdl.handle.net/1721.1/113009 Chehayeb, Karim M. et al. “Optimal Design and Operation of Electrodialysis for Brackish-Water Desalination and for High-Salinity Brine Concentration.” Desalination 420 (October 2017): 167–182 © 2017 Elsevier https://orcid.org/0000-0003-3559-9167 https://orcid.org/0000-0002-2901-0638 http://dx.doi.org/10.1016/J.DESAL.2017.07.003 Desalination Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Elsevier Prof. Lienhard |
| spellingShingle | Nayar, Kishor G. Chehayeb, Karim Malek Farhat, Daniel Maan Lienhard, John H. Optimal design and operation of electrodialysis for brackish-water desalination and for high-salinity brine concentration |
| title | Optimal design and operation of electrodialysis for brackish-water desalination and for high-salinity brine concentration |
| title_full | Optimal design and operation of electrodialysis for brackish-water desalination and for high-salinity brine concentration |
| title_fullStr | Optimal design and operation of electrodialysis for brackish-water desalination and for high-salinity brine concentration |
| title_full_unstemmed | Optimal design and operation of electrodialysis for brackish-water desalination and for high-salinity brine concentration |
| title_short | Optimal design and operation of electrodialysis for brackish-water desalination and for high-salinity brine concentration |
| title_sort | optimal design and operation of electrodialysis for brackish water desalination and for high salinity brine concentration |
| url | http://hdl.handle.net/1721.1/113009 https://orcid.org/0000-0003-3559-9167 https://orcid.org/0000-0002-2901-0638 |
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