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Numerical Investigation of Miniature Ejector Refrigeration System Embedded with a Capillary Pump Loop
A miniature steam ejector refrigeration system embedded with a capillary pump loop can result in a compact design which can be used for electronics cooling. In this paper, computational fluid dynamics (CFD) is employed to investigate the effects of the area ratio of the ejector constant-area mixing...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6189733/ https://www.ncbi.nlm.nih.gov/pubmed/30400426 http://dx.doi.org/10.3390/mi8080235 |
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author | Dong, Jing-Ming Song, He Yu, Meng-Qi Wang, Wei-Ning Pan, Xin-Xiang |
author_facet | Dong, Jing-Ming Song, He Yu, Meng-Qi Wang, Wei-Ning Pan, Xin-Xiang |
author_sort | Dong, Jing-Ming |
collection | PubMed |
description | A miniature steam ejector refrigeration system embedded with a capillary pump loop can result in a compact design which can be used for electronics cooling. In this paper, computational fluid dynamics (CFD) is employed to investigate the effects of the area ratio of the ejector constant-area mixing section to the nozzle throat, the length of the constant-area section, and the nozzle exit position (NXP), on the performance of a miniature steam ejector. Results show that the performance of the miniature steam ejector is very sensitive to the area ratio of the constant-area mixing section to the nozzle. For the needs of practical application, the area ratio of the constant-area mixing section to the nozzle should be smaller than 16 when the temperature of the primary flow is 60 °C. The NXP plays an important role in the flow phenomena inside the miniature ejector. The critical back pressure is more sensitive to length of the constant-area mixing section than the entrainment ratio. Results of this investigation provided a good solution to the miniature steam ejector embedded with a capillary pump loop for electronics cooling application. |
format | Online Article Text |
id | pubmed-6189733 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-61897332018-11-01 Numerical Investigation of Miniature Ejector Refrigeration System Embedded with a Capillary Pump Loop Dong, Jing-Ming Song, He Yu, Meng-Qi Wang, Wei-Ning Pan, Xin-Xiang Micromachines (Basel) Article A miniature steam ejector refrigeration system embedded with a capillary pump loop can result in a compact design which can be used for electronics cooling. In this paper, computational fluid dynamics (CFD) is employed to investigate the effects of the area ratio of the ejector constant-area mixing section to the nozzle throat, the length of the constant-area section, and the nozzle exit position (NXP), on the performance of a miniature steam ejector. Results show that the performance of the miniature steam ejector is very sensitive to the area ratio of the constant-area mixing section to the nozzle. For the needs of practical application, the area ratio of the constant-area mixing section to the nozzle should be smaller than 16 when the temperature of the primary flow is 60 °C. The NXP plays an important role in the flow phenomena inside the miniature ejector. The critical back pressure is more sensitive to length of the constant-area mixing section than the entrainment ratio. Results of this investigation provided a good solution to the miniature steam ejector embedded with a capillary pump loop for electronics cooling application. MDPI 2017-07-28 /pmc/articles/PMC6189733/ /pubmed/30400426 http://dx.doi.org/10.3390/mi8080235 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Dong, Jing-Ming Song, He Yu, Meng-Qi Wang, Wei-Ning Pan, Xin-Xiang Numerical Investigation of Miniature Ejector Refrigeration System Embedded with a Capillary Pump Loop |
title | Numerical Investigation of Miniature Ejector Refrigeration System Embedded with a Capillary Pump Loop |
title_full | Numerical Investigation of Miniature Ejector Refrigeration System Embedded with a Capillary Pump Loop |
title_fullStr | Numerical Investigation of Miniature Ejector Refrigeration System Embedded with a Capillary Pump Loop |
title_full_unstemmed | Numerical Investigation of Miniature Ejector Refrigeration System Embedded with a Capillary Pump Loop |
title_short | Numerical Investigation of Miniature Ejector Refrigeration System Embedded with a Capillary Pump Loop |
title_sort | numerical investigation of miniature ejector refrigeration system embedded with a capillary pump loop |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6189733/ https://www.ncbi.nlm.nih.gov/pubmed/30400426 http://dx.doi.org/10.3390/mi8080235 |
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