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Field demonstration of a cost-optimized solar powered electrodialysis reversal desalination system in rural India

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He, Wei, Amrose, Susan, Wright, Natasha C., Buonassisi, Tonio, Peters, Ian M. and Winter, Amos G. (2020) Field demonstration of a cost-optimized solar powered electrodialysis reversal desalination system in rural India. Desalination, 476 . 114217. doi:10.1016/j.desal.2019.114217 ISSN 0011-9164.

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Official URL: https://doi.org/10.1016/j.desal.2019.114217

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Abstract

This study provides experimental validation of a previously published optimal design theory for photovoltaic (PV)-powered electrodialysis reversal (EDR) desalination systems. The prior work describes the co-optimization of PV and EDR subsystems, and flexible operation to accommodate daily and annual solar irradiance variability, significantly reducing water cost. This study presents the fabrication of a PV-EDR pilot system designed using the co-optimization theory and field testing results from the rural village of Chelluru, India. Testing in the field enabled observation and evaluation of real-world factors on system performance, resulting in updates to the previous theory to include unaccounted factors that affect costs, including: filling and draining of water tanks, salt and water accumulation in tanks from prior batches, unexpected energy losses due to locally purchased converters, and scaling in the ED stack. Therefore, water cost in the PV-EDR pilot system was updated from previous estimates based on field performance. The estimated capital cost and lifetime cost of the Chelluru system are 34% and 45% lower, respectively, than the corresponding costs if the PV-EDR system was designed using conventional design practice. The theory and experimental insights presented in this paper will enable desalination engineers to better design and optimize PV-EDR systems.

Item Type: Journal Article
Subjects: T Technology > TD Environmental technology. Sanitary engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Photovoltaic power systems , Saline water conversion -- Electrodialysis process, Saline water conversion -- India -- Chelluru
Journal or Publication Title: Desalination
Publisher: Elsevier BV
ISSN: 0011-9164
Official Date: 15 February 2020
Dates:
DateEvent
15 February 2020Published
26 November 2019Available
11 November 2019Accepted
Volume: 476
Article Number: 114217
DOI: 10.1016/j.desal.2019.114217
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 12 February 2020
Date of first compliant Open Access: 26 November 2020
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
UNSPECIFIEDTata Steelhttp://dx.doi.org/10.13039/501100007220
R16AC00122Desalination and Water Purification Research and Development Program (U.S.)http://viaf.org/viaf/157516617
R17AC00150Desalination and Water Purification Research and Development Program (U.S.)http://viaf.org/viaf/157516617
UNSPECIFIEDMassachusetts Institute of Technologyhttp://dx.doi.org/10.13039/100006919
UNSPECIFIEDNational Research Foundation Singaporehttp://dx.doi.org/10.13039/501100001381

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