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Numerical study of the optimal nozzle width and jet orientation in a downward blowing air curtain

2016Conference object Open access
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dc.contributor.authorC. Goncalves, J.
dc.contributor.authorCosta, José Joaquim Da
dc.contributor.authorGameiro Lopes, Antonio
dc.contributor.authorFigueiredo, A. Rui
dc.date.accessioned2023-08-22T10:43:14Z
dc.date.available2023-08-22T10:43:14Z
dc.date.issued2016
dc.description.abstractThis paper presents a numerical study of the performance of an air curtain device (ACD) installed on top of the access door of a refrigerated room, aiming to quantify the influence of some parameters (nozzle width, initial orientation and discharge velocity of the jet) towards the maximization of the sealing effect. For this purpose, a numerical model was developed to simulate the turbulent non-isothermal 3D airflow generated by the ACD jet, focusing on the period after the door is opened. The situation when the ACD is switched off is taken as the reference for the performance evaluation. The results allow identifying an optimum jet nozzle width corresponding to maximum sealing efficiency and lower jet airflow rate (lower energy consumption in the air curtain operation). For the present conditions (ACD installed outside the refrigerated room), the sealing efficiency is highest with the ACD oriented vertically and is practically unaffected if the jet discharge is directed towards the warmer space. On the contrary, a jet discharged towards the cooler space is very detrimental to the ACD sealing effectpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.urihttp://hdl.handle.net/10400.19/7913
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCYTEF 2016 − VIII Iberian Congress | VI Ibero-American Refrigeration Sciences and Technologies Coimbra-Portugal, 3-6 May, 2016pt_PT
dc.relation.publisherversionhttps://www.researchgate.net/publication/327558097_Numerical_study_of_the_optimal_nozzle_width_and_jet_orientation_in_a_downward_blowing_air_curtinpt_PT
dc.subjectCFDpt_PT
dc.subjectair curtain
dc.subjectnozzle width
dc.subjectjet discharge orientation
dc.subjectsealing efficiency
dc.titleNumerical study of the optimal nozzle width and jet orientation in a downward blowing air curtainpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceCoimbra-Portugal, 3-6 May, 2016pt_PT
oaire.citation.titleCYTEF 2016 − VIII Iberian Congress | VI Ibero-American Refrigeration Sciences and Technologies Coimbra-Portugal, 3-6 May, 2016pt_PT
person.familyNameGonçalves
person.familyNameCosta
person.familyNameGameiro Lopes
person.givenNameJoão Carlos
person.givenNameJosé J.
person.givenNameAntonio
person.identifier1299655
person.identifier791557
person.identifier.ciencia-idE411-A4A3-F728
person.identifier.ciencia-id8E18-2961-C537
person.identifier.orcid0000-0003-3763-1503
person.identifier.orcid0000-0002-7015-6989
person.identifier.orcid0000-0002-6852-5394
person.identifier.ridD-7278-2013
person.identifier.scopus-author-id55951854100
person.identifier.scopus-author-id55683718500
person.identifier.scopus-author-id55935932300
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication397e6196-5fed-44bb-b807-dacd9b85ae27
relation.isAuthorOfPublicationecaddcb0-ecec-414c-9843-2ce079fe83dc
relation.isAuthorOfPublication11b1c62e-de87-46a8-bdb6-2ed06e2eb760
relation.isAuthorOfPublication.latestForDiscoveryecaddcb0-ecec-414c-9843-2ce079fe83dc

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