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dc.contributor.authorShahzad, Muhammad Wakil
dc.contributor.authorBurhan, Muhammad
dc.contributor.authorYbyraiymkul, Doskhan
dc.contributor.authorOh, Seung Jin
dc.contributor.authorNg, Kim Choon
dc.date.accessioned2019-10-09T08:43:40Z
dc.date.available2019-10-09T08:43:40Z
dc.date.issued2019-10-01
dc.identifier.citationShahzad, M. W., Burhan, M., Ybyraiymkul, D., Oh, S. J., & Ng, K. C. (2019). An improved indirect evaporative cooler experimental investigation. Applied Energy, 256, 113934. doi:10.1016/j.apenergy.2019.113934
dc.identifier.doi10.1016/j.apenergy.2019.113934
dc.identifier.urihttp://hdl.handle.net/10754/658571
dc.description.abstractAir conditioning has enhanced the work efficiency and improved life style by maintaining comfortable environment. The growing demand of air conditioning has negative impact on energy and environment. In 2015, air conditioning consumed 6% of total global electricity produced and it is expected to increase to 20% by 2050. The leveling-off conventional chiller’s efficiency at 0.85 ± 0.03 kW/Rton due to pairing of dehumidification and cooling processes in one machine is not only the major reason of high energy consumption but also the key limitation in efficiency improvement. The de-coupling of dehumidification and cooling processes can be one of the solution to achieve the quantum jump in the performance, 0.6 ± 0.03 kW/Rton, by improving individual processes. We proposed an improved indirect evaporative cooler system for sensible cooling that can be combined with dehumidification processes to achieve sustainable cooling goals. The experimentation on 800 mm long and 280 mm wide generic cell showed that it can produce temperature differential up to 10 °C with small area of heat transfer. It was showed that the proposed vertical heat exchanger configuration with multi point injection of working air is the best configuration of the indirect evaporative cooler, achieving coefficient of performance level of 78 for cooling alone. We expect that overall coefficient of performance level of 7–8 is achievable by incorporating efficient dehumidification processes. We also presented detailed design parameters that can be used as a reference for commercial system design.
dc.description.sponsorshipAuthors would like to thank to OSR department of King Abdullah University of Science and Technology for IEC pilot funds (Grant number: REP/1/3988-01-01).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0306261919316216
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Applied Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Energy, [[Volume], [Issue], (2019-10-01)] DOI: 10.1016/j.apenergy.2019.113934 . © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectIndirect evaporative cooler
dc.subjectChiller efficiency
dc.subjectCoefficient of performance
dc.subjectAir-conditioning
dc.titleAn improved indirect evaporative cooler experimental investigation
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.identifier.journalApplied Energy
dc.rights.embargodate2021-10-01
dc.eprint.versionPost-print
dc.contributor.institutionMechanical & Construction Engineering Department, Northumbria University, Newcastle Upon Tyne, UK
dc.contributor.institutionClean Innovation Technology Group, Korea Institute of Industrial Technology, Jeju, Republic of Korea
kaust.personBurhan, Muhammad
kaust.personYbyraiymkul, Doskhan
kaust.personNg, Kim Choon
kaust.grant.numberREP/1/3988-01-01
dc.date.published-online2019-10-01
dc.date.published-print2019-12


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