Introductory Numerical Study on Supersonic Ejector Working with R32
Nowadays, there is an increasing demand for devices which work efficiently with the smallest possible consumption of energy. In this regard, incorporating ejectors seems to be an interesting choice. This paper describes the numerical analysis of the flow in a supersonic ejector working with R32 (dif...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2019-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2019/18/epjconf_efm18_02096.pdf |
| _version_ | 1818613880459362304 |
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| author | Vojta Lukas Kracik Jan Dvorak Vaclav |
| author_facet | Vojta Lukas Kracik Jan Dvorak Vaclav |
| author_sort | Vojta Lukas |
| collection | DOAJ |
| description | Nowadays, there is an increasing demand for devices which work efficiently with the smallest possible consumption of energy. In this regard, incorporating ejectors seems to be an interesting choice. This paper describes the numerical analysis of the flow in a supersonic ejector working with R32 (difluoromethane) as the working fluid. The ejector geometry under investigation in this paper has already been experimentally analysed, however, air was used as the working fluid. Therefore, this paper deals with a numerical analysis of the same geometry but with a different working fluid. Furthermore, the design of the ejector enabled the adjustment of a particular distance of the motive nozzle from the beginning of the mixing chamber, i.e. the nozzle exit position (NXP). This work examines the ejector numerically for eleven values of back-pressure with the NXP of two millimetres; consequently, the performance line of the ejector with fixed boundary conditions at both inlets was obtained. Finally, the obtained results are discussed and some recommendations for future research have been made. |
| first_indexed | 2024-12-16T16:09:09Z |
| format | Article |
| id | doaj.art-4a21c2d09b764cfbb0c0f5030e128471 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-16T16:09:09Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-4a21c2d09b764cfbb0c0f5030e1284712022-12-21T22:25:16ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012130209610.1051/epjconf/201921302096epjconf_efm18_02096Introductory Numerical Study on Supersonic Ejector Working with R32Vojta Lukas0Kracik Jan1Dvorak Vaclav2Department of Power Engineering Equipment, Faculty of Mechanical Engineering, Technical University of LiberecDepartment of Power Engineering Equipment, Faculty of Mechanical Engineering, Technical University of LiberecDepartment of Power Engineering Equipment, Faculty of Mechanical Engineering, Technical University of LiberecNowadays, there is an increasing demand for devices which work efficiently with the smallest possible consumption of energy. In this regard, incorporating ejectors seems to be an interesting choice. This paper describes the numerical analysis of the flow in a supersonic ejector working with R32 (difluoromethane) as the working fluid. The ejector geometry under investigation in this paper has already been experimentally analysed, however, air was used as the working fluid. Therefore, this paper deals with a numerical analysis of the same geometry but with a different working fluid. Furthermore, the design of the ejector enabled the adjustment of a particular distance of the motive nozzle from the beginning of the mixing chamber, i.e. the nozzle exit position (NXP). This work examines the ejector numerically for eleven values of back-pressure with the NXP of two millimetres; consequently, the performance line of the ejector with fixed boundary conditions at both inlets was obtained. Finally, the obtained results are discussed and some recommendations for future research have been made.https://www.epj-conferences.org/articles/epjconf/pdf/2019/18/epjconf_efm18_02096.pdf |
| spellingShingle | Vojta Lukas Kracik Jan Dvorak Vaclav Introductory Numerical Study on Supersonic Ejector Working with R32 EPJ Web of Conferences |
| title | Introductory Numerical Study on Supersonic Ejector Working with R32 |
| title_full | Introductory Numerical Study on Supersonic Ejector Working with R32 |
| title_fullStr | Introductory Numerical Study on Supersonic Ejector Working with R32 |
| title_full_unstemmed | Introductory Numerical Study on Supersonic Ejector Working with R32 |
| title_short | Introductory Numerical Study on Supersonic Ejector Working with R32 |
| title_sort | introductory numerical study on supersonic ejector working with r32 |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2019/18/epjconf_efm18_02096.pdf |
| work_keys_str_mv | AT vojtalukas introductorynumericalstudyonsupersonicejectorworkingwithr32 AT kracikjan introductorynumericalstudyonsupersonicejectorworkingwithr32 AT dvorakvaclav introductorynumericalstudyonsupersonicejectorworkingwithr32 |