Effect of mist/steam uniformity on heat transfer characteristics in unconfined jet impingement

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dc.contributor.authorAlhajeri, Hamad M.
dc.contributor.authorAlmutairi, Abdulrahman
dc.contributor.authorAlenezi, Abdulrahman H.
dc.contributor.authorGamil, Abdelaziz A. A.
dc.contributor.authorAl-Hajeri, M. H.
dc.date.accessioned2021-01-06T09:32:54Z
dc.date.available2021-01-06T09:32:54Z
dc.date.issued2020-12-17
dc.description.abstractThis paper presents the numerical investigations of the injection of mist into an unconfined cooling steam jet to analyze the effects on the corresponding heat transfer characteristics. The infusion of mist into an confined cooling steam jet demonstrates a remarkable improvement in the heat transfer specifications as described in numerous previous studies. Therefore, the current research contributes to the knowledge by focusing on the uniformity configurations of the injected second phase to the unconfined regions and the influence of the surrounding environment on the mist injected. Several variables govern the physical model of the mist concentration and jet to plate distance, which is included in three-dimensional incompressible Navier-Stokes flow with the discrete phase model for the multiphase flow regime. The simulation was conducted over a range of common working Reynolds numbers. The results show that controlling the uniformity of the injected mist will redefine the cooling characteristics. The accumulated mist near the edge leads to the heat transfer enhancement at H/D = 2, 4, and 6. The surrounding environment had a significant influence on the droplet behavior at H/D = 8, thus causing a heat transfer reduction of 8%. The droplet Stock number can determine the droplet performance on the target wall and introducing mist generates a third heat transfer peak that results in an average increase of 38% for 1% mist.en_UK
dc.identifier.citationAlhajeri HM, Almutairi A, Alenezia A, et al., (2020) Effect of mist/steam uniformity on heat transfer characteristics in unconfined jet impingement. Applied Thermal Engineering, Volume 186, March 2021, Article number 116299en_UK
dc.identifier.issn1359-4311
dc.identifier.urihttps://doi.org/10.1016/j.applthermaleng.2020.116299
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16126
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectHeat transferen_UK
dc.subjectUnconfined jet impingementen_UK
dc.subjectMist-steam mixtureen_UK
dc.subjectDroplet uniformityen_UK
dc.titleEffect of mist/steam uniformity on heat transfer characteristics in unconfined jet impingementen_UK
dc.typeArticleen_UK

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