Application of Tidal Energy for Purification in Fresh Water Lake

Journal Article

Title: Application of Tidal Energy for Purification in Fresh Water Lake
Authors: Jung, R.; Isshiki, H.
Publication Date:
January 01, 2015
Journal: International Journal of Naval Architecture and Ocean Engineering
Volume: 7
Issue: 1
Pages: 212-225
Publisher: Elsevier
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Document Access

Website: External Link
Attachment: Access File
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Citation

Jung, R.; Isshiki, H. (2015). Application of Tidal Energy for Purification in Fresh Water Lake. International Journal of Naval Architecture and Ocean Engineering, 7(1), 212-225.
Abstract: 

In order to preserve the quality of fresh water in the artificial lake after the reclamation of an intertidal flat at the mouth of a river; we suggest two novel methods of water purification by using tidal potential energy and an enclosed permeable embankment called an utsuro (Akai et al., 1990) in the reclaimed region. One method uses an inflatable bag on the seabed within an utsuro, while the other uses a moored floating barge out of a dyke. Each case employs a subsea pipe to allow flow between the inside and outside of the utsuro. The change in water level in the utsuro, which is pushed through the pipe by the potential energy outside, caused circulation in the artificial lake. In this paper, we analyzed the inflatable bag and floating barge motion as well as the pipe flow characteristics and drafts as given by a harmonic sea level, and compared the theoretical value with an experimental value with a simple small model basin. The numerical calculation based on theory showed good agreement with experimental values.

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