MODELLING, CHARACTERIZATION AND TESTING OF AN OCEAN WAVE POWERED DESALINATION SYSTEM

Jia Mi, Xian Wu, Joseph Capper, Xiaofan Li, Ahmed Shalaby, Uihoon Chung, Raju Datla, Muhammad Hajj, Lei Zuo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Development of alternative freshwater via desalination can address water scarcity and security. Meanwhile, sustainable renewable energy sources are critical to economically achieve seawater desalination. Marine renewable energy has tremendous potential to power the blue economy and is co-located with seawater. This study proposes an ocean wave powered reverse osmosis desalination system, which consists of an oscillating surge wave energy converter with a piston pump and a reverse osmosis desalination module with an accumulator on the shore. Seawater can be pressurized by the oscillating surge wave energy converter and pumped to the reverse osmosis desalination module as feed where it then produces permeate that is free of undesired molecules and larger particles. Numerical models considering potential flow theory of the wave energy converter and solution-diffusion theory of the reverse osmosis membrane were established. A 1:10 scaled prototype was designed, fabricated and tested in a wave tank based on the Froude scaling law. Comprehensive wave tank tests were implemented, characterized, and analyzed considering the water-energy nexus. Scaled tests resulted in the minimal specific energy consumption of 0.44 kWℎ/m3 under regular wave (wave period Ts = 4s wave height Hs = 10 cm with the corresponding optimal recovery ratio of 32%.

Original languageEnglish
Title of host publication34th Conference on Mechanical Vibration and Sound (VIB)
ISBN (Electronic)9780791886311
DOIs
StatePublished - 2022
EventASME 2022 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC-CIE 2022 - St. Louis, United States
Duration: 14 Aug 202217 Aug 2022

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume10

Conference

ConferenceASME 2022 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC-CIE 2022
Country/TerritoryUnited States
CitySt. Louis
Period14/08/2217/08/22

Keywords

  • Desalination
  • Renewable Energy
  • Reverse Osmosis
  • Wave Tank Test
  • Wave energy converter

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