Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejector
In this study, for the two-stage ejector under three inlet conditions of air-conditioning, refrigerating and freezing, a three-dimensional simulation is used to study the impact of the mixing chamber radius of the first and second stage on the minimum pressure in the ejector without auxiliary entrai...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-11-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23008341 |
| _version_ | 1797672675214098432 |
|---|---|
| author | Jia Yan Haiping Gao Zheng Wang |
| author_facet | Jia Yan Haiping Gao Zheng Wang |
| author_sort | Jia Yan |
| collection | DOAJ |
| description | In this study, for the two-stage ejector under three inlet conditions of air-conditioning, refrigerating and freezing, a three-dimensional simulation is used to study the impact of the mixing chamber radius of the first and second stage on the minimum pressure in the ejector without auxiliary entraining first, and then, the impact of real auxiliary entraining effects on ejector performance for two-stage ejector with varied equal-area mixing chamber radius is evaluated accordingly. Results show that: (1) as the second stage equal-area mixing chamber radius (Ram2) increases, the minimum first stage ejector pressure (Pmin1) decreases and the minimum second stage ejector pressure (Pmin2) increases; (2) with the increase of radius of the first-stage equal-area mixing chamber (Ram1) , the decreasing effect of Pmin1 and the increasing effect of Pmin2 are both weakened as Ram2 increases from 3.0 mm to 4.6 mm; (3) the minimum pressures of the two-stage have a great influence on the auxiliary entraining effect. |
| first_indexed | 2024-03-11T21:34:37Z |
| format | Article |
| id | doaj.art-3066d300f809471994985ccca1763e4c |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-11T21:34:37Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-3066d300f809471994985ccca1763e4c2023-09-27T04:43:02ZengElsevierCase Studies in Thermal Engineering2214-157X2023-11-0151103528Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejectorJia Yan0Haiping Gao1Zheng Wang2School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang City, 621010, PR China; Corresponding author.School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang City, 621010, PR ChinaTianfu Engineering Numerical Simulation and Software Innovation Center, School of Computer Sciences, Sichuan University, Chengdu City, 610041, PR ChinaIn this study, for the two-stage ejector under three inlet conditions of air-conditioning, refrigerating and freezing, a three-dimensional simulation is used to study the impact of the mixing chamber radius of the first and second stage on the minimum pressure in the ejector without auxiliary entraining first, and then, the impact of real auxiliary entraining effects on ejector performance for two-stage ejector with varied equal-area mixing chamber radius is evaluated accordingly. Results show that: (1) as the second stage equal-area mixing chamber radius (Ram2) increases, the minimum first stage ejector pressure (Pmin1) decreases and the minimum second stage ejector pressure (Pmin2) increases; (2) with the increase of radius of the first-stage equal-area mixing chamber (Ram1) , the decreasing effect of Pmin1 and the increasing effect of Pmin2 are both weakened as Ram2 increases from 3.0 mm to 4.6 mm; (3) the minimum pressures of the two-stage have a great influence on the auxiliary entraining effect.http://www.sciencedirect.com/science/article/pii/S2214157X23008341Two-stageEjectorThree-dimensionalAuxiliary entraining |
| spellingShingle | Jia Yan Haiping Gao Zheng Wang Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejector Case Studies in Thermal Engineering Two-stage Ejector Three-dimensional Auxiliary entraining |
| title | Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejector |
| title_full | Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejector |
| title_fullStr | Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejector |
| title_full_unstemmed | Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejector |
| title_short | Three-dimensional numerical study on the effect of radius of the equal-area mixing chamber on auxiliary entraining of the two-stage ejector |
| title_sort | three dimensional numerical study on the effect of radius of the equal area mixing chamber on auxiliary entraining of the two stage ejector |
| topic | Two-stage Ejector Three-dimensional Auxiliary entraining |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23008341 |
| work_keys_str_mv | AT jiayan threedimensionalnumericalstudyontheeffectofradiusoftheequalareamixingchamberonauxiliaryentrainingofthetwostageejector AT haipinggao threedimensionalnumericalstudyontheeffectofradiusoftheequalareamixingchamberonauxiliaryentrainingofthetwostageejector AT zhengwang threedimensionalnumericalstudyontheeffectofradiusoftheequalareamixingchamberonauxiliaryentrainingofthetwostageejector |