Future sustainable desalination using waste heat: kudos to thermodynamic synergy

Handle URI:
http://hdl.handle.net/10754/621798
Title:
Future sustainable desalination using waste heat: kudos to thermodynamic synergy
Authors:
Shahzad, Muhammad Wakil; Ng, Kim Choon ( 0000-0003-3930-4127 ) ; Thu, Kyaw
Abstract:
There has been a plethora of published literature on thermally-driven adsorption desalination (AD) cycles for seawater desalination due to their favorable environmentally friendly attributes, such as the ability to operate with low-temperature heat sources, from either the renewable or the exhaust gases, and having almost no major moving parts. We present an AD cycle for seawater desalination due to its unique ability to integrate higher water production yields with the existing desalination methods such as reverse osmosis (RO), multi-stage flashing (MSF) and multi-effect distillation (MED), etc. The hybrid cycles exploit the thermodynamic synergy between processes, leading to significant enhancement of the systems' performance ratio (PR). In this paper, we demonstrate experimentally the synergetic effect between the AD and MED cycles that results in quantum improvement in water production. The unique feature is in the internal latent heat recovery from the condenser unit of AD to the top-brine stage of MED, resulting in a combined, or simply termed as MEAD, cycle that requires no additional heat input other than the regeneration of an adsorbent. The batch-operated cycles are simple to implement and require low maintenance when compared with conventional desalination methods. Together, they offer a low energy and environmentally friendly desalination solution that addresses the major issues of the water-energy-environment nexus. © 2016 The Royal Society of Chemistry.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
Shahzad MW, Ng KC, Thu K (2016) Future sustainable desalination using waste heat: kudos to thermodynamic synergy. Environ Sci: Water Res Technol 2: 206–212. Available: http://dx.doi.org/10.1039/c5ew00217f.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Environ. Sci.: Water Res. Technol.
Issue Date:
2-Dec-2015
DOI:
10.1039/c5ew00217f
Type:
Article
ISSN:
2053-1400; 2053-1419
Sponsors:
R-265-000-399-281
Additional Links:
http://pubs.rsc.org/en/content/articlehtml/2015/ew/c5ew00217f
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorShahzad, Muhammad Wakilen
dc.contributor.authorNg, Kim Choonen
dc.contributor.authorThu, Kyawen
dc.date.accessioned2016-11-03T13:25:12Z-
dc.date.available2016-11-03T13:25:12Z-
dc.date.issued2015-12-02en
dc.identifier.citationShahzad MW, Ng KC, Thu K (2016) Future sustainable desalination using waste heat: kudos to thermodynamic synergy. Environ Sci: Water Res Technol 2: 206–212. Available: http://dx.doi.org/10.1039/c5ew00217f.en
dc.identifier.issn2053-1400en
dc.identifier.issn2053-1419en
dc.identifier.doi10.1039/c5ew00217fen
dc.identifier.urihttp://hdl.handle.net/10754/621798-
dc.description.abstractThere has been a plethora of published literature on thermally-driven adsorption desalination (AD) cycles for seawater desalination due to their favorable environmentally friendly attributes, such as the ability to operate with low-temperature heat sources, from either the renewable or the exhaust gases, and having almost no major moving parts. We present an AD cycle for seawater desalination due to its unique ability to integrate higher water production yields with the existing desalination methods such as reverse osmosis (RO), multi-stage flashing (MSF) and multi-effect distillation (MED), etc. The hybrid cycles exploit the thermodynamic synergy between processes, leading to significant enhancement of the systems' performance ratio (PR). In this paper, we demonstrate experimentally the synergetic effect between the AD and MED cycles that results in quantum improvement in water production. The unique feature is in the internal latent heat recovery from the condenser unit of AD to the top-brine stage of MED, resulting in a combined, or simply termed as MEAD, cycle that requires no additional heat input other than the regeneration of an adsorbent. The batch-operated cycles are simple to implement and require low maintenance when compared with conventional desalination methods. Together, they offer a low energy and environmentally friendly desalination solution that addresses the major issues of the water-energy-environment nexus. © 2016 The Royal Society of Chemistry.en
dc.description.sponsorshipR-265-000-399-281en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/content/articlehtml/2015/ew/c5ew00217fen
dc.titleFuture sustainable desalination using waste heat: kudos to thermodynamic synergyen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalEnviron. Sci.: Water Res. Technol.en
dc.contributor.institutionME Dept., National University of Singapore, Singapore, Singaporeen
kaust.authorShahzad, Muhammad Wakilen
kaust.authorNg, Kim Choonen
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