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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/5963

Title: Modified operation of a small scale energy recovery device for seawater reverse osmosis
Authors: Bermudez-Contreras, Alfredo S.
Thomson, Murray
Keywords: Clark pump
Energy recovery
Reverse osmosis
RO
Issue Date: 2010
Publisher: Desalination Publications
Citation: BERMUDEZ-CONTRERAS, A.S. and THOMSON, M., 2010. Modified operation of a small scale energy recovery device for seawater reverse osmosis. Desalination and Water Treatment, 13, pp. 195-202
Abstract: The Clark pump reciprocating pressure intensifier is a well established mechanism for highly efficient brine stream energy recovery in small scale seawater reverse osmosis (SWRO) desalination systems. This paper describes operation of a modified Clark pump in which the roles of the two pairs of chambers are reversed and the general arrangement of the complete RO system is substantially altered. In particular, the low-pressure motorised pump that feeds into the standard Clark pump is replaced by a high-pressure motorised pump that sits in parallel with it. A conceptual comparison of the original and modified arrangements is presented, followed by a discussion of the practical modifications made to a standard Clark pump in order to test the concept. The initial tests were successful and results indicating specific energies in the range 3.5 to 4.5 kWh/m3 are presented.
Description: This article was published in the journal, Desalination and Water Treatment[© Bermudez-Contreras and Thomson].
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/5963
ISSN: 1944-3994
1944-3986
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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