A two-fluid model for refrigerant flow through adiabatic capillary tubes
| dc.contributor.author | Seixlack, Andre Luiz [UNESP] | |
| dc.contributor.author | Prata, Alvaro Toubes | |
| dc.contributor.author | Melo, Claudio | |
| dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
| dc.contributor.institution | Universidade Federal de Santa Catarina (UFSC) | |
| dc.date.accessioned | 2014-12-03T13:11:50Z | |
| dc.date.available | 2014-12-03T13:11:50Z | |
| dc.date.issued | 2014-01-01 | |
| dc.description.abstract | This work presents a numerical model to simulate refrigerant flow through capillary tubes, commonly used as expansion devices in refrigeration systems. The flow is divided in a single-phase region, where the refrigerant is in the subcooled liquid state, and a region of two-phase flow. The capillary tube is considered straight and horizontal. The flow is taken as one-dimensional and adiabatic. Steady-state condition is also assumed and the metastable flow phenomena are neglected. The two-fluid model, considering the hydrodynamic and thermal non-equilibrium between the liquid and vapor phases, is applied to the two-phase flow region. Comparisons are made with experimental measurements of the mass flow rate and pressure distribution along two capillary tubes working with refrigerant R-134a in different operating conditions. The results indicate that the present model provides a better estimation than the commonly employed homogeneous model. Some computational results referring to the quality, void fraction, velocities, and temperatures of each phase are presented and discussed. | en |
| dc.description.affiliation | Sao Paulo State Univ, Coll Engn, Dept Mech Engn, BR-15385000 Ilha Solteira, SP, Brazil | |
| dc.description.affiliation | Univ Fed Santa Catarina, POLO Res Labs Emerging Technol Cooling & Thermoph, BR-88040970 Florianopolis, SC, Brazil | |
| dc.description.affiliationUnesp | Sao Paulo State Univ, Coll Engn, Dept Mech Engn, BR-15385000 Ilha Solteira, SP, Brazil | |
| dc.description.sponsorship | EMBRACO | |
| dc.format.extent | 1-12 | |
| dc.identifier | http://dx.doi.org/10.1007/s40430-013-0051-9 | |
| dc.identifier.citation | Journal Of The Brazilian Society Of Mechanical Sciences And Engineering. Rio De Janeiro Rj: Abcm Brazilian Soc Mechanical Sciences & Engineering, v. 36, n. 1, p. 1-12, 2014. | |
| dc.identifier.doi | 10.1007/s40430-013-0051-9 | |
| dc.identifier.issn | 1678-5878 | |
| dc.identifier.lattes | 8658860438651895 | |
| dc.identifier.uri | http://hdl.handle.net/11449/113631 | |
| dc.identifier.wos | WOS:000329101000001 | |
| dc.language.iso | eng | |
| dc.publisher | Abcm Brazilian Soc Mechanical Sciences & Engineering | |
| dc.relation.ispartof | Journal of the Brazilian Society of Mechanical Sciences and Engineering | |
| dc.relation.ispartofjcr | 1.627 | |
| dc.relation.ispartofsjr | 0,362 | |
| dc.rights.accessRights | Acesso restrito | |
| dc.source | Web of Science | |
| dc.subject | Capillary tubes | en |
| dc.subject | Two-fluid model | en |
| dc.subject | Computer modeling | en |
| dc.title | A two-fluid model for refrigerant flow through adiabatic capillary tubes | en |
| dc.type | Artigo | |
| dcterms.rightsHolder | Abcm Brazilian Soc Mechanical Sciences & Engineering | |
| unesp.author.lattes | 8658860438651895[1] | |
| unesp.author.orcid | 0000-0003-2886-7290[1] | |
| unesp.campus | Universidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteira | pt |