Performance investigation of an advanced multi-effect adsorption desalination (MEAD) cycle

Handle URI:
http://hdl.handle.net/10754/594250
Title:
Performance investigation of an advanced multi-effect adsorption desalination (MEAD) cycle
Authors:
Thu, Kyaw; Kim, Young Deuk; Shahzad, Muhammad Wakil; Saththasivam, Jayaprakash; Ng, Kim Choon ( 0000-0003-3930-4127 )
Abstract:
This article presents the development of an advanced adsorption desalination system with quantum performance improvement. The proposed multi-effect adsorption desalination (MEAD) cycle utilizes a single heat source i.e., low-temperature hot water (as low as 55°C). Passive heating of the feed water (no direct heating) is adopted using total internal heat recovery from the kinetic energy of desorbed vapor and water vapor uptake potential of the adsorbent. Thus, the evaporation in the MEAD cycle ensues at low temperatures ranging from 35°C to 7°C yet providing significantly high performance ratio. The energy from the regenerated vapor is recovered for multiple evaporation/condensation of saline water by a water-run-around circuit between the top brine temperature (TBT) effect and the AD condenser. The adsorbent material is the hydrophilic mesoporous silica gel with high pore surface area. Numerical simulation for such a cycle is developed based on experimentally verified model extending to multi-effect cycle. The system is investigated under several operation conditions such as cycle time allocation, heat source temperature and the number of intermediate effects. It is observed that most of the evaporating-condensing effects operate at low temperature i.e., below 35°C as opposed to conventional multi-effect distillation (MED) cycle. For a MEAD cycle with 7 intermediate effects, the specific water production rate, the performance ratio and the gain output ratio are found to be 1.0m3/htonne of silica gel, 6.3 and 5.1, respectively. Low scaling and fouling potentials being evaporation at low temperatures yet high recovery ratio makes the cycle suitable for effectively and efficiently handling highly concentrated feed water such as produced water, brine rejected from other desalination plants and zero liquid discharge (ZLD) system. © 2015 Elsevier Ltd.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Citation:
Thu K, Kim Y-D, Shahzad MW, Saththasivam J, Ng KC (2015) Performance investigation of an advanced multi-effect adsorption desalination (MEAD) cycle. Applied Energy 159: 469–477. Available: http://dx.doi.org/10.1016/j.apenergy.2015.09.035.
Publisher:
Elsevier BV
Journal:
Applied Energy
Issue Date:
Dec-2015
DOI:
10.1016/j.apenergy.2015.09.035
Type:
Article
ISSN:
0306-2619
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorThu, Kyawen
dc.contributor.authorKim, Young Deuken
dc.contributor.authorShahzad, Muhammad Wakilen
dc.contributor.authorSaththasivam, Jayaprakashen
dc.contributor.authorNg, Kim Choonen
dc.date.accessioned2016-01-19T14:44:22Zen
dc.date.available2016-01-19T14:44:22Zen
dc.date.issued2015-12en
dc.identifier.citationThu K, Kim Y-D, Shahzad MW, Saththasivam J, Ng KC (2015) Performance investigation of an advanced multi-effect adsorption desalination (MEAD) cycle. Applied Energy 159: 469–477. Available: http://dx.doi.org/10.1016/j.apenergy.2015.09.035.en
dc.identifier.issn0306-2619en
dc.identifier.doi10.1016/j.apenergy.2015.09.035en
dc.identifier.urihttp://hdl.handle.net/10754/594250en
dc.description.abstractThis article presents the development of an advanced adsorption desalination system with quantum performance improvement. The proposed multi-effect adsorption desalination (MEAD) cycle utilizes a single heat source i.e., low-temperature hot water (as low as 55°C). Passive heating of the feed water (no direct heating) is adopted using total internal heat recovery from the kinetic energy of desorbed vapor and water vapor uptake potential of the adsorbent. Thus, the evaporation in the MEAD cycle ensues at low temperatures ranging from 35°C to 7°C yet providing significantly high performance ratio. The energy from the regenerated vapor is recovered for multiple evaporation/condensation of saline water by a water-run-around circuit between the top brine temperature (TBT) effect and the AD condenser. The adsorbent material is the hydrophilic mesoporous silica gel with high pore surface area. Numerical simulation for such a cycle is developed based on experimentally verified model extending to multi-effect cycle. The system is investigated under several operation conditions such as cycle time allocation, heat source temperature and the number of intermediate effects. It is observed that most of the evaporating-condensing effects operate at low temperature i.e., below 35°C as opposed to conventional multi-effect distillation (MED) cycle. For a MEAD cycle with 7 intermediate effects, the specific water production rate, the performance ratio and the gain output ratio are found to be 1.0m3/htonne of silica gel, 6.3 and 5.1, respectively. Low scaling and fouling potentials being evaporation at low temperatures yet high recovery ratio makes the cycle suitable for effectively and efficiently handling highly concentrated feed water such as produced water, brine rejected from other desalination plants and zero liquid discharge (ZLD) system. © 2015 Elsevier Ltd.en
dc.publisherElsevier BVen
dc.subjectAdsorptionen
dc.subjectDesalinationen
dc.subjectWaste heat recoveryen
dc.subjectZero liquid dischargeen
dc.titlePerformance investigation of an advanced multi-effect adsorption desalination (MEAD) cycleen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalApplied Energyen
dc.contributor.institutionDepartment of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, Singaporeen
dc.contributor.institutionDepartment of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Ansan, Gyeonggi-do, South Koreaen
dc.contributor.institutionQatar Environment and Energy Research Institute (QEERI), Qatar Foundation, Doha, Qataren
kaust.authorShahzad, Muhammad Wakilen
kaust.authorNg, Kim Choonen
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