Numerical simulation of the flow through a compressor-valve model using an immersed-boundary method
Hermetic reciprocating compressors are widely used in small- and medium-size refrigeration systems based on the vapor-compression cycle. One of the main parts of this type of compressor is the automatic valve system used to control the suction and discharge processes. As the suction and discharge lo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2016-01-01
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| Series: | Engineering Applications of Computational Fluid Mechanics |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/19942060.2016.1140076 |
| _version_ | 1818321332067106816 |
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| author | Franco Barbi José Luiz Gasche Aristeu da Silveira Neto Millena Martins Villar Rafael Sene de Lima |
| author_facet | Franco Barbi José Luiz Gasche Aristeu da Silveira Neto Millena Martins Villar Rafael Sene de Lima |
| author_sort | Franco Barbi |
| collection | DOAJ |
| description | Hermetic reciprocating compressors are widely used in small- and medium-size refrigeration systems based on the vapor-compression cycle. One of the main parts of this type of compressor is the automatic valve system used to control the suction and discharge processes. As the suction and discharge losses represent a large amount of the total thermodynamic losses (47%), a small improvement in the suction and discharge processes can produce expressive increases in the thermodynamic efficiency of the compressor. In this work, a new numerical methodology is applied to solve the flow through reed-type valves. The numerical results were experimentally validated through the pressure distribution acting on the frontal disk of a radial diffuser, which is a geometry usually used to model this type of valve. The numerical results for the velocity and pressure fields were comprehensively explored during the opening and closing movement imposed to the reed. The good quality of these results show that the numerical methodology is very promising in terms of solving the flow in the actual dynamics of reed-type valves. |
| first_indexed | 2024-12-13T10:39:13Z |
| format | Article |
| id | doaj.art-9eb6c28a9d3941b49df8ebd4ed692d7e |
| institution | Directory Open Access Journal |
| issn | 1994-2060 1997-003X |
| language | English |
| last_indexed | 2024-12-13T10:39:13Z |
| publishDate | 2016-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Engineering Applications of Computational Fluid Mechanics |
| spelling | doaj.art-9eb6c28a9d3941b49df8ebd4ed692d7e2022-12-21T23:50:36ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2016-01-0110125527110.1080/19942060.2016.11400761140076Numerical simulation of the flow through a compressor-valve model using an immersed-boundary methodFranco Barbi0José Luiz Gasche1Aristeu da Silveira Neto2Millena Martins Villar3Rafael Sene de Lima4Universidade Estadual Paulista ‘Júlio de Mesquita Filho’Universidade Estadual Paulista ‘Júlio de Mesquita Filho’Universidade Federal de UberlândiaUniversidade Federal de UberlândiaUniversidade Tecnológica Federal do ParanáHermetic reciprocating compressors are widely used in small- and medium-size refrigeration systems based on the vapor-compression cycle. One of the main parts of this type of compressor is the automatic valve system used to control the suction and discharge processes. As the suction and discharge losses represent a large amount of the total thermodynamic losses (47%), a small improvement in the suction and discharge processes can produce expressive increases in the thermodynamic efficiency of the compressor. In this work, a new numerical methodology is applied to solve the flow through reed-type valves. The numerical results were experimentally validated through the pressure distribution acting on the frontal disk of a radial diffuser, which is a geometry usually used to model this type of valve. The numerical results for the velocity and pressure fields were comprehensively explored during the opening and closing movement imposed to the reed. The good quality of these results show that the numerical methodology is very promising in terms of solving the flow in the actual dynamics of reed-type valves.http://dx.doi.org/10.1080/19942060.2016.1140076Compressor valveimmersed boundary: adaptive refinement |
| spellingShingle | Franco Barbi José Luiz Gasche Aristeu da Silveira Neto Millena Martins Villar Rafael Sene de Lima Numerical simulation of the flow through a compressor-valve model using an immersed-boundary method Engineering Applications of Computational Fluid Mechanics Compressor valve immersed boundary: adaptive refinement |
| title | Numerical simulation of the flow through a compressor-valve model using an immersed-boundary method |
| title_full | Numerical simulation of the flow through a compressor-valve model using an immersed-boundary method |
| title_fullStr | Numerical simulation of the flow through a compressor-valve model using an immersed-boundary method |
| title_full_unstemmed | Numerical simulation of the flow through a compressor-valve model using an immersed-boundary method |
| title_short | Numerical simulation of the flow through a compressor-valve model using an immersed-boundary method |
| title_sort | numerical simulation of the flow through a compressor valve model using an immersed boundary method |
| topic | Compressor valve immersed boundary: adaptive refinement |
| url | http://dx.doi.org/10.1080/19942060.2016.1140076 |
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