Sustainable desalination using ocean thermocline energy

Handle URI:
http://hdl.handle.net/10754/625778
Title:
Sustainable desalination using ocean thermocline energy
Authors:
Ng, Kim Choon ( 0000-0003-3930-4127 ) ; Shahzad, Muhammad Wakil
Abstract:
The conventional desalination processes are not only energy intensive but also environment un-friendly. They are operating far from thermodynamic limit, 10–12%, making them un-sustainable for future water supplies. An innovative desalination processes are required to meet future sustainable desalination goal and COP21 goal. In this paper, we proposed a multi-effect desalination system operated with ocean thermocline energy, thermal energy harnessed from seawater temperature gradient. It can exploit low temperature differential between surface hot water temperature and deep-sea cold-water temperature to produce fresh water. Detailed theoretical model was developed and simulation was conducted in FORTRAN using international mathematical and statistical library (IMSL). We presented four different cases with deep-sea cold water temperature varies from 5 to 13°C and MED stages varies from 3 to 6. It shows that the proposed cycle can achieve highest level of universal performance ratio, UPR = 158, achieving about 18.8% of the ideal limit. With the major energy input emanated from the renewable solar, the proposed cycle is truly a “green desalination” method of low global warming potential (GWP), best suited for tropical coastal shores having bathymetry depths up to 300m or more.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
Ng KC, Shahzad MW (2018) Sustainable desalination using ocean thermocline energy. Renewable and Sustainable Energy Reviews 82: 240–246. Available: http://dx.doi.org/10.1016/j.rser.2017.08.087.
Publisher:
Elsevier BV
Journal:
Renewable and Sustainable Energy Reviews
Issue Date:
22-Sep-2017
DOI:
10.1016/j.rser.2017.08.087
Type:
Article
ISSN:
1364-0321
Sponsors:
The authors would like to thank the King Abdullah University of Science & Technology (KAUST) for the generous grant awarded to Project no. 7000000411.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S1364032117312339
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorNg, Kim Choonen
dc.contributor.authorShahzad, Muhammad Wakilen
dc.date.accessioned2017-10-03T12:49:39Z-
dc.date.available2017-10-03T12:49:39Z-
dc.date.issued2017-09-22en
dc.identifier.citationNg KC, Shahzad MW (2018) Sustainable desalination using ocean thermocline energy. Renewable and Sustainable Energy Reviews 82: 240–246. Available: http://dx.doi.org/10.1016/j.rser.2017.08.087.en
dc.identifier.issn1364-0321en
dc.identifier.doi10.1016/j.rser.2017.08.087en
dc.identifier.urihttp://hdl.handle.net/10754/625778-
dc.description.abstractThe conventional desalination processes are not only energy intensive but also environment un-friendly. They are operating far from thermodynamic limit, 10–12%, making them un-sustainable for future water supplies. An innovative desalination processes are required to meet future sustainable desalination goal and COP21 goal. In this paper, we proposed a multi-effect desalination system operated with ocean thermocline energy, thermal energy harnessed from seawater temperature gradient. It can exploit low temperature differential between surface hot water temperature and deep-sea cold-water temperature to produce fresh water. Detailed theoretical model was developed and simulation was conducted in FORTRAN using international mathematical and statistical library (IMSL). We presented four different cases with deep-sea cold water temperature varies from 5 to 13°C and MED stages varies from 3 to 6. It shows that the proposed cycle can achieve highest level of universal performance ratio, UPR = 158, achieving about 18.8% of the ideal limit. With the major energy input emanated from the renewable solar, the proposed cycle is truly a “green desalination” method of low global warming potential (GWP), best suited for tropical coastal shores having bathymetry depths up to 300m or more.en
dc.description.sponsorshipThe authors would like to thank the King Abdullah University of Science & Technology (KAUST) for the generous grant awarded to Project no. 7000000411.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S1364032117312339en
dc.subjectSustainable desalinationen
dc.subjectRenewable energyen
dc.subjectThermocline energyen
dc.subjectThermal desalinationen
dc.titleSustainable desalination using ocean thermocline energyen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalRenewable and Sustainable Energy Reviewsen
kaust.authorNg, Kim Choonen
kaust.authorShahzad, Muhammad Wakilen
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