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Empirical correlation to estimate the optimum jet velocity of an air curtain

2016-05Conference object Restricted access
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dc.contributor.authorGoncalves, J. C.
dc.contributor.authorCosta, José
dc.contributor.authorFigueiredo, A. Rui
dc.contributor.authorLopes, António
dc.date.accessioned2023-08-22T10:50:42Z
dc.date.available2023-08-22T10:50:42Z
dc.date.issued2016-05
dc.description.abstractThis paper presents the results of a parametric study to quantify the influence of some thermal and geometrical parameters (door height) on the performance of an Air Curtain Device (ACD). The experimental facility consists of two similar adjacent rooms connected by a door over which the ACD device was installed. The tracer gas technique was used to calculate the sealing effect achieved with the air curtain at different jet velocities. Using a commercial CFD software, a numerical study was also performed to simulate the heat and mass transfer phenomena, as well as the aerodynamic sealing efficiency. A good agreement was observed between experimental and numerical results, showing that the optimum discharge velocity of the ACD air jet increases almost linearly with the door height, as well as with the temperature difference between both sides of the air curtain. It was possible to establish an empirical correlation that predicts reasonably well the optimum discharge jet velocity of a vertical air curtain device, depending on the temperature difference and the doorway height. An electronic device can be included in the ACD enabling the automatic adjustment of the air curtain jet velocity based this correlation, in order to continuously operate close to maximum sealing efficiency.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGonçalves, J.C., Costa, J., Figueiredo, R. & Lopes, A. (2016, maio, 3-6). Empirical correlation to estimate the optimum jet velocity of an air curtain. In CYTEF 2016, VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra, Portugal. https://iifiir.org/en/fridoc/empirical-correlation-to-estimate-the-optimum-jet-velocity-of-an-air-31949.pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.19/7916
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCYTEF-2016. VIII Iberian Congress | VI Ibero-American Refrigeration Sciences and Technologiespt_PT
dc.relation.publisherversionhttps://iifiir.org/en/fridoc/empirical-correlation-to-estimate-the-optimum-jet-velocity-of-an-air-31949pt_PT
dc.subjectAir curtainpt_PT
dc.subjectCFDpt_PT
dc.subjectAutomatic adjustmentpt_PT
dc.subjectHeat transferpt_PT
dc.subjectSealing efficiencypt_PT
dc.titleEmpirical correlation to estimate the optimum jet velocity of an air curtainpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceCoimbra - Portugalpt_PT
oaire.citation.titleCYTEF-2016. VIII Iberian Congress | VI Ibero-American Refrigeration Sciences and Technologiespt_PT
person.familyNameGonçalves
person.givenNameJoão Carlos
person.identifier1299655
person.identifier.ciencia-idE411-A4A3-F728
person.identifier.orcid0000-0003-3763-1503
person.identifier.scopus-author-id55951854100
rcaap.rightsrestrictedAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication397e6196-5fed-44bb-b807-dacd9b85ae27
relation.isAuthorOfPublication.latestForDiscovery397e6196-5fed-44bb-b807-dacd9b85ae27

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