A CFD analysis of the flow dynamics of a directly-operated safety relief valve

Página do item simplificado
dc.contributor.authorScuro N.L.
dc.contributor.authorAngelo E.
dc.contributor.authorAngelo G.
dc.contributor.authorAndrade D.A.
dc.date.accessioned2019-08-20T00:13:14Z
dc.date.available2019-08-20T00:13:14Z
dc.date.issued2018
dc.description.abstract© 2018 Elsevier B.V.A three-dimensional numerical study on steady state was designed for a safety relief valve using several openings and inlet pressures. The ANSYS-CFX® commercial code was used as a CFD tool to obtain several properties using dry saturated steam revised by IAPWS-IF97. Mass flow and discharge coefficient calculated from simulations are compared to the ASME 2011a Section 1 standard. The model presented constant behavior for opening lifts smaller than 12 mm and is very reasonable when compared to the standard (ASME). In addition, the conventional procedure to design normal disc force assumes that all the fluid mechanical energy was converted into work; however, the CFD simulations showed that average normal disc force is about 19% lower than theoretical ASME force, which could prevent the valve oversizing. A numerical validation was conducted for a transonic air flow through a converging–diverging diffuser geometry to verify the solver's ability to capture the position and intensity of a shockwave: the results showed good agreement with the benchmark experiments.
dc.description.firstpage321
dc.description.lastpage332
dc.description.volume328
dc.identifier.citationSCURO, N.L.; ANGELO, Edvaldo; ANGELO, Gabriel; ANDRADE, D.A.. A CFD analysis of the flow dynamics of a directly-operated safety relief valve. NUCLEAR ENGINEERING AND DESIGN, v. 328, p. 321-332, 2018.
dc.identifier.doi10.1016/j.nucengdes.2018.01.024
dc.identifier.issn0029-5493
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/1990
dc.relation.ispartofNuclear Engineering and Design
dc.rightsAcesso Restrito
dc.titleA CFD analysis of the flow dynamics of a directly-operated safety relief valve
dc.typeArtigo de revisão
fei.scopus.citations40
fei.scopus.eid2-s2.0-85041382223
fei.scopus.subjectBenchmark experiments
fei.scopus.subjectCommercial codes
fei.scopus.subjectDischarge coefficients
fei.scopus.subjectInlet pressures
fei.scopus.subjectMechanical energies
fei.scopus.subjectNumerical validations
fei.scopus.subjectSafety relief valve
fei.scopus.subjectThree-dimensional numerical studies
fei.scopus.updated2024-03-04
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85041382223&origin=inward
Arquivos
Coleções
Artigos