Multi effect desalination and adsorption desalination (MEDAD): A hybrid desalination method

Handle URI:
http://hdl.handle.net/10754/563837
Title:
Multi effect desalination and adsorption desalination (MEDAD): A hybrid desalination method
Authors:
Shahzad, Muhammad Wakil; Ng, Kim Choon ( 0000-0003-3930-4127 ) ; Thu, Kyaw; Saha, Bidyut Baran; Chun, Wongee
Abstract:
This paper presents an advanced desalination cycle that hybridizes a conventional multi-effect distillation (MED) and an emerging yet low-energy adsorption cycle (AD). The hybridization of these cycles, known as MED + AD or MEDAD in short, extends the limited temperature range of the MED, typically from 65 °C at top-brine temperature (TBT) to a low-brine temperature (LBT) of 40 °C to a lower LBT of 5 °C, whilst the TBT remains the same. The integration of cycles is achieved by having vapor uptake by the adsorbent in AD cycle, extracting from the vapor emanating from last effect of MED. By increasing the range of temperature difference (DT) of a MEDAD, its design can accommodate additional condensation-evaporation stages that capitalize further the energy transfer potential of expanding steam. Numerical model for the proposed MEDAD cycle is presented and compared with the water production rates of conventional and hybridized MEDs. The improved MEDAD design permits the latter stages of MED to operate below the ambient temperature, scavenging heat from the ambient air. The increase recovery of water from the seawater feed may lead to higher solution concentration within the latter stages, but the lower saturation temperatures of these stages mitigate the scaling and fouling effects. © 2014 Elsevier Ltd. All rights reserved.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Water Desalination & Reuse Research Cntr
Publisher:
Elsevier BV
Journal:
Applied Thermal Engineering
Issue Date:
Nov-2014
DOI:
10.1016/j.applthermaleng.2014.03.064
Type:
Article
ISSN:
13594311
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.contributor.authorSaha, Bidyut Baranen
dc.contributor.authorChun, Wongeeen
dc.date.accessioned2015-08-03T12:16:20Zen
dc.date.available2015-08-03T12:16:20Zen
dc.date.issued2014-11en
dc.identifier.issn13594311en
dc.identifier.doi10.1016/j.applthermaleng.2014.03.064en
dc.identifier.urihttp://hdl.handle.net/10754/563837en
dc.description.abstractThis paper presents an advanced desalination cycle that hybridizes a conventional multi-effect distillation (MED) and an emerging yet low-energy adsorption cycle (AD). The hybridization of these cycles, known as MED + AD or MEDAD in short, extends the limited temperature range of the MED, typically from 65 °C at top-brine temperature (TBT) to a low-brine temperature (LBT) of 40 °C to a lower LBT of 5 °C, whilst the TBT remains the same. The integration of cycles is achieved by having vapor uptake by the adsorbent in AD cycle, extracting from the vapor emanating from last effect of MED. By increasing the range of temperature difference (DT) of a MEDAD, its design can accommodate additional condensation-evaporation stages that capitalize further the energy transfer potential of expanding steam. Numerical model for the proposed MEDAD cycle is presented and compared with the water production rates of conventional and hybridized MEDs. The improved MEDAD design permits the latter stages of MED to operate below the ambient temperature, scavenging heat from the ambient air. The increase recovery of water from the seawater feed may lead to higher solution concentration within the latter stages, but the lower saturation temperatures of these stages mitigate the scaling and fouling effects. © 2014 Elsevier Ltd. All rights reserved.en
dc.publisherElsevier BVen
dc.subjectDesalinationen
dc.subjectHybrid desalinationen
dc.subjectImproved desalination methoden
dc.subjectMEDen
dc.titleMulti effect desalination and adsorption desalination (MEDAD): A hybrid desalination methoden
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.identifier.journalApplied Thermal Engineeringen
dc.contributor.institutionDepartment of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1Singapore, Singaporeen
dc.contributor.institutionInterdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koenKasuga-shi, Fukuoka, Japanen
dc.contributor.institutionDepartment of Nuclear and Energy Engineering, Cheju National University, 66 JejudaehaknoJejusi, South Koreaen
kaust.authorThu, Kyawen
kaust.authorNg, Kim Choonen
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