A new compressible flow model for pneumatic directional control valves

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dc.authoridSarigecili, Mehmet Ilteris/0000-0002-9969-2005
dc.authoridDagdelen, Mustafa/0000-0002-1448-104X
dc.authoridOZBEK, Necdet Sinan/0000-0002-7184-9015
dc.contributor.authorDagdelen, Mustafa
dc.contributor.authorSarigecili, Mehmet Ilteris
dc.contributor.authorOzbek, Necdet Sinan
dc.date.accessioned2025-01-06T17:44:02Z
dc.date.available2025-01-06T17:44:02Z
dc.date.issued2023
dc.description.abstractIn this study, a new compressible flow model for small orifice openings in pneumatic proportional directional control valves has been proposed. It is crucial to precisely control pneumatic valves over all control ranges; yet, conventional flow models fail around the closed position of the valve. The main deficit of the existing studies in the literature is to assume constant values for the parameters of the flow model over changing operating conditions. It has been demonstrated that these rough assumptions are insufficient in precisely predicting the mass flow rate, particularly for small orifice openings. An enhanced experimental setup has been introduced to improve the effectiveness of the proposed model. The cracking pressure ratio and parameters of the model have been identified with experimental method. In the proposed model, new empirical coefficients have been established after a thorough investigation of the impact of supply pressure on the flow behavior of the valve. Validation studies of the model in both the filling and exhausting states of the valve have been carried out at various supply pressures and orifice openings, yielding rather promising modeling performances. In validation tests, the real pressure and the pressure produced by new model have been compared, and good agreement has been achieved with 0.0039% absolute error. According to the findings, the proposed improved flow model can be selected in precision pneumatic control applications.
dc.identifier.doi10.1177/09596518221134405
dc.identifier.endpage195
dc.identifier.issn0959-6518
dc.identifier.issn2041-3041
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85142602179
dc.identifier.scopusqualityQ2
dc.identifier.startpage179
dc.identifier.urihttps://doi.org/10.1177/09596518221134405
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2888
dc.identifier.volume237
dc.identifier.wosWOS:000889178400001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSage Publications Ltd
dc.relation.ispartofProceedings of The Institution of Mechanical Engineers Part I-Journal of Systems and Control Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectPneumatics
dc.subjectcompressible flow model
dc.subjectidentification
dc.subjectprecise control
dc.subjectcracking pressure ratio
dc.titleA new compressible flow model for pneumatic directional control valves
dc.typeArticle

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