Show simple item record

dc.contributor.authorThu, Kyaw
dc.contributor.authorKim, Young Deuk
dc.contributor.authorShahzad, Muhammad Wakil
dc.contributor.authorSaththasivam, Jayaprakash
dc.contributor.authorNg, Kim Choon
dc.date.accessioned2016-01-19T14:44:22Z
dc.date.available2016-01-19T14:44:22Z
dc.date.issued2015-12
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.
dc.identifier.issn0306-2619
dc.identifier.doi10.1016/j.apenergy.2015.09.035
dc.identifier.urihttp://hdl.handle.net/10754/594250
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.
dc.publisherElsevier BV
dc.subjectAdsorption
dc.subjectDesalination
dc.subjectWaste heat recovery
dc.subjectZero liquid discharge
dc.titlePerformance investigation of an advanced multi-effect adsorption desalination (MEAD) cycle
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalApplied Energy
dc.contributor.institutionDepartment of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, Singapore
dc.contributor.institutionDepartment of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Ansan, Gyeonggi-do, South Korea
dc.contributor.institutionQatar Environment and Energy Research Institute (QEERI), Qatar Foundation, Doha, Qatar
kaust.personShahzad, Muhammad Wakil
kaust.personNg, Kim Choon


This item appears in the following Collection(s)

Show simple item record