Preliminary field test results from a photovoltaic electrodialysis brackish water desalination system in rural India

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Brackish water desalination is crucial to meet basic drinking water needs in rural India. Solar photovoltaic powered electrodialysis (PV-ED) has been justified as a more cost-effective solution than the current dominant reverse osmosis approach for off-grid systems. This paper presents preliminary results from an ongoing field pilot of a village-scale PV-ED system in Chelluru, which is a small village in South India. System performance is compared to predictions of a PV-ED parametric model of local solar irradiance, ED system parameters, power systems parameters, water storage, and cost, validating the model over a single-batch ED operation. An ~88% “solar-to-treated water” conversion efficiency was achieved in a typical ED batch operation, using 2.47±0.27 kWh/m3 for brackish desalination in the village. This paper also discusses the difficulties and local constraints encountered during the initial field testing and analyzes system performance in the context of local constraints and availability.

Original languageEnglish (US)
Title of host publication44th Design Automation Conference
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791851760
DOIs
StatePublished - Jan 1 2018
Externally publishedYes
EventASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2018 - Quebec City, Canada
Duration: Aug 26 2018Aug 29 2018

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume2B-2018

Other

OtherASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2018
CountryCanada
CityQuebec City
Period8/26/188/29/18

Bibliographical note

Funding Information:
This work was sponsored by Tata Projects Ltd., the United States Bureau of Reclamation, and the MIT Energy Initiative.

Publisher Copyright:
Copyright Copyright ©© 2018 2018 ASME ASME

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