Study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquid
Steam jet condensation in flow water under different conditions was investigated numerically. A cavitation model considering thermodynamic effects was proposed to study the flow and interfacial heat transfer characteristics. The distribution of thermodynamic parameters and the influence of different...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
|
| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X23003465 |
| _version_ | 1827930491943124992 |
|---|---|
| author | Jiawen Yu Xinyuan Ma Mengqiang Li Linmin Li Xiaojun Li |
| author_facet | Jiawen Yu Xinyuan Ma Mengqiang Li Linmin Li Xiaojun Li |
| author_sort | Jiawen Yu |
| collection | DOAJ |
| description | Steam jet condensation in flow water under different conditions was investigated numerically. A cavitation model considering thermodynamic effects was proposed to study the flow and interfacial heat transfer characteristics. The distribution of thermodynamic parameters and the influence of different incident angles on the jet state were studied. The decrease in steam pressure and water subcooling would have a negative impact on the heat transfer coefficient of the interface and the length of plume. Furthermore, with increased water flow, the steam plume was tapered and its length was gradually shortened. Additionally, the turbulent kinetic energy is the maximum at the outlet of the nozzle and decreases with increasing flow distance. The distribution characteristic of the heat transfer coefficient is similar to and turbulence kinetic energy, which increases with the water mass flux, and reaches the maximum at both sides of the axis. Gradually increases in the middle of the axis. Therefore, the improvement of jet condensation should be achieved by adjusting the incidence angle and the water flow velocity. |
| first_indexed | 2024-03-13T06:37:28Z |
| format | Article |
| id | doaj.art-d3dabf4443c24fc594f7fabee1bbefe9 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-03-13T06:37:28Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-d3dabf4443c24fc594f7fabee1bbefe92023-06-09T04:27:55ZengElsevierCase Studies in Thermal Engineering2214-157X2023-07-0147103040Study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquidJiawen Yu0Xinyuan Ma1Mengqiang Li2Linmin Li3Xiaojun Li4Corresponding author.; Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, ChinaKey Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, ChinaKey Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, ChinaKey Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, ChinaKey Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, ChinaSteam jet condensation in flow water under different conditions was investigated numerically. A cavitation model considering thermodynamic effects was proposed to study the flow and interfacial heat transfer characteristics. The distribution of thermodynamic parameters and the influence of different incident angles on the jet state were studied. The decrease in steam pressure and water subcooling would have a negative impact on the heat transfer coefficient of the interface and the length of plume. Furthermore, with increased water flow, the steam plume was tapered and its length was gradually shortened. Additionally, the turbulent kinetic energy is the maximum at the outlet of the nozzle and decreases with increasing flow distance. The distribution characteristic of the heat transfer coefficient is similar to and turbulence kinetic energy, which increases with the water mass flux, and reaches the maximum at both sides of the axis. Gradually increases in the middle of the axis. Therefore, the improvement of jet condensation should be achieved by adjusting the incidence angle and the water flow velocity.http://www.sciencedirect.com/science/article/pii/S2214157X23003465Jet condensationPlume characteristicDirect contact condensationNumerical simulation |
| spellingShingle | Jiawen Yu Xinyuan Ma Mengqiang Li Linmin Li Xiaojun Li Study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquid Case Studies in Thermal Engineering Jet condensation Plume characteristic Direct contact condensation Numerical simulation |
| title | Study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquid |
| title_full | Study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquid |
| title_fullStr | Study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquid |
| title_full_unstemmed | Study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquid |
| title_short | Study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquid |
| title_sort | study on thermodynamics and flow characteristics of jet condensate in subcooled flowing liquid |
| topic | Jet condensation Plume characteristic Direct contact condensation Numerical simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X23003465 |
| work_keys_str_mv | AT jiawenyu studyonthermodynamicsandflowcharacteristicsofjetcondensateinsubcooledflowingliquid AT xinyuanma studyonthermodynamicsandflowcharacteristicsofjetcondensateinsubcooledflowingliquid AT mengqiangli studyonthermodynamicsandflowcharacteristicsofjetcondensateinsubcooledflowingliquid AT linminli studyonthermodynamicsandflowcharacteristicsofjetcondensateinsubcooledflowingliquid AT xiaojunli studyonthermodynamicsandflowcharacteristicsofjetcondensateinsubcooledflowingliquid |