Mudgal, A. and Davies, P.A. (2016). A cost-effective steam-driven RO plant for brackish groundwater. Desalination, 385 , pp. 167-177.
Abstract
Desalination is a costly means of providing freshwater. Most desalination plants use either reverse osmosis (RO) or thermal distillation. Both processes have drawbacks: RO is efficient but uses expensive electrical energy; thermal distillation is inefficient but uses less expensive thermal energy. This work aims to provide an efficient RO plant that uses thermal energy. A steam-Rankine cycle has been designed to drive mechanically a batch-RO system that achieves high recovery, without the high energy penalty typically incurred in a continuous-RO system. The steam may be generated by solar panels, biomass boilers, or as an industrial by-product. A novel mechanical arrangement has been designed for low cost, and a steam-jacketed arrangement has been designed for isothermal expansion and improved thermodynamic efficiency. Based on detailed heat transfer and cost calculations, a gain output ratio of 69-162 is predicted, enabling water to be treated at a cost of 71 Indian Rupees/m3 at small scale. Costs will reduce with scale-up. Plants may be designed for a wide range of outputs, from 5 m3/day, up to commercial versions producing 300 m3/day of clean water from brackish groundwater.
Publication DOI: | https://doi.org/10.1016/j.desal.2016.02.022 |
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Divisions: | College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design College of Engineering & Physical Sciences > School of Infrastructure and Sustainable Engineering > Engineering Systems and Supply Chain Management College of Engineering & Physical Sciences > Sustainable environment research group College of Engineering & Physical Sciences > Aston Institute of Materials Research (AIMR) |
Additional Information: | © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Uncontrolled Keywords: | biomass,gain output ratio,Rankine cycle,recovery ratio,reverse osmosis,solar,General Chemical Engineering,Mechanical Engineering,General Chemistry,General Materials Science,Water Science and Technology |
Publication ISSN: | 1873-4464 |
Last Modified: | 30 Sep 2024 10:48 |
Date Deposited: | 19 Aug 2019 10:08 |
Full Text Link: | |
Related URLs: |
http://www.scop ... tnerID=8YFLogxK
(Scopus URL) |
PURE Output Type: | Article |
Published Date: | 2016-05-02 |
Published Online Date: | 2016-02-24 |
Accepted Date: | 2016-02-12 |
Submitted Date: | 2015-11-29 |
Authors: |
Mudgal, A.
Davies, P.A. ( 0000-0003-4783-1234) |
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