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

Wei He; Susan Amrose; Natasha C. Wright; Tonio Buonassisi; Ian M. Peters; Amos G. Winter

doi:10.1016/j.desal.2019.114217

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

Wei He, Susan Amrose, Natasha C. Wright, Tonio Buonassisi, Ian M. Peters, Amos G. Winter

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

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.

Original language	English (US)
Article number	114217
Journal	Desalination
Volume	476
DOIs	https://doi.org/10.1016/j.desal.2019.114217
State	Published - Feb 15 2020
Externally published	Yes

Bibliographical note

Funding Information:
This work was sponsored by Tata Projects Ltd. , the United States Bureau of Reclamation Desalination and Water Purification Research and Development grants R16AC00122 and R17AC00150 , and the MIT Energy Initiative . I.M.P. and T.B. acknowledge the support from Singapore's National Research Foundation through the Singapore MIT Alliance for Research and Technology's ‘Low energy electronic systems (LEES) IRG’. Appendix A

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Cost-optimized
Electrodialysis reversal
Field-test
Photovoltaic

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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

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.",

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note = "Funding Information: This work was sponsored by Tata Projects Ltd. , the United States Bureau of Reclamation Desalination and Water Purification Research and Development grants R16AC00122 and R17AC00150 , and the MIT Energy Initiative . I.M.P. and T.B. acknowledge the support from Singapore's National Research Foundation through the Singapore MIT Alliance for Research and Technology's {\textquoteleft}Low energy electronic systems (LEES) IRG{\textquoteright}. Appendix A Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

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

Abstract

Bibliographical note

Keywords

UN SDGs

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