Performance improvement of a micro-structured gas separator utilizing the Soret effect
The Soret effect is a phenomenon in which the components of mixed fluids are separated by a temperature gradient. This study investigated a simple and low-cost technique for extracting high concentration hydrogen (H2) by utilizing the Soret effect in a H2-carbon dioxide mixed gas. Previous research...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2022-01-01
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| Series: | Journal of Thermal Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jtst/17/1/17_21-00271/_pdf/-char/en |
| _version_ | 1811225865524084736 |
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| author | Takeshi KYODA Takumi SAIKI Sohei MATSUMOTO Shinya WATANABE Naoki ONO |
| author_facet | Takeshi KYODA Takumi SAIKI Sohei MATSUMOTO Shinya WATANABE Naoki ONO |
| author_sort | Takeshi KYODA |
| collection | DOAJ |
| description | The Soret effect is a phenomenon in which the components of mixed fluids are separated by a temperature gradient. This study investigated a simple and low-cost technique for extracting high concentration hydrogen (H2) by utilizing the Soret effect in a H2-carbon dioxide mixed gas. Previous research by the authors attempted to improve the efficiency of H2 separation by applying a temperature difference to a network of separators with a continuous structure (the Burgers cascade) and enabling a mixed gas throughflow. One of the problems in that study was the impairment in separation performance that occurred due to the remixing of the components separated by flows within the device cells. Therefore, to resolve this problem, the present study conducted numerical simulations for gas flow, temperature distribution, and H2 concentration and studied the effect of inserting an additional structure (a partition) to prevent gas remixing at first. Based on the simulation results, experiments were conducted using the Burgers cascade in a device with partitioned cells. The results confirmed that the partitions improved the separation of H2 by up to about 1.6 times compared with conventional devices. |
| first_indexed | 2024-04-12T09:14:24Z |
| format | Article |
| id | doaj.art-ffdcb8a35f74460c8a2ceeea919fbb32 |
| institution | Directory Open Access Journal |
| issn | 1880-5566 |
| language | English |
| last_indexed | 2024-04-12T09:14:24Z |
| publishDate | 2022-01-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Thermal Science and Technology |
| spelling | doaj.art-ffdcb8a35f74460c8a2ceeea919fbb322022-12-22T03:38:54ZengThe Japan Society of Mechanical EngineersJournal of Thermal Science and Technology1880-55662022-01-0117121-0027121-0027110.1299/jtst.21-00271jtstPerformance improvement of a micro-structured gas separator utilizing the Soret effectTakeshi KYODA0Takumi SAIKI1Sohei MATSUMOTO2Shinya WATANABE3Naoki ONO4Dept. of Mech. Eng., Shibaura Inst. Tech.Dept. of Mech. Eng., Shibaura Inst. Tech.AISTIbaraki Univ.Dept. of Mech. Eng., Shibaura Inst. Tech.The Soret effect is a phenomenon in which the components of mixed fluids are separated by a temperature gradient. This study investigated a simple and low-cost technique for extracting high concentration hydrogen (H2) by utilizing the Soret effect in a H2-carbon dioxide mixed gas. Previous research by the authors attempted to improve the efficiency of H2 separation by applying a temperature difference to a network of separators with a continuous structure (the Burgers cascade) and enabling a mixed gas throughflow. One of the problems in that study was the impairment in separation performance that occurred due to the remixing of the components separated by flows within the device cells. Therefore, to resolve this problem, the present study conducted numerical simulations for gas flow, temperature distribution, and H2 concentration and studied the effect of inserting an additional structure (a partition) to prevent gas remixing at first. Based on the simulation results, experiments were conducted using the Burgers cascade in a device with partitioned cells. The results confirmed that the partitions improved the separation of H2 by up to about 1.6 times compared with conventional devices.https://www.jstage.jst.go.jp/article/jtst/17/1/17_21-00271/_pdf/-char/ensoret effectthermal diffusionhydrogengas separationnetwork devicepartition |
| spellingShingle | Takeshi KYODA Takumi SAIKI Sohei MATSUMOTO Shinya WATANABE Naoki ONO Performance improvement of a micro-structured gas separator utilizing the Soret effect Journal of Thermal Science and Technology soret effect thermal diffusion hydrogen gas separation network device partition |
| title | Performance improvement of a micro-structured gas separator utilizing the Soret effect |
| title_full | Performance improvement of a micro-structured gas separator utilizing the Soret effect |
| title_fullStr | Performance improvement of a micro-structured gas separator utilizing the Soret effect |
| title_full_unstemmed | Performance improvement of a micro-structured gas separator utilizing the Soret effect |
| title_short | Performance improvement of a micro-structured gas separator utilizing the Soret effect |
| title_sort | performance improvement of a micro structured gas separator utilizing the soret effect |
| topic | soret effect thermal diffusion hydrogen gas separation network device partition |
| url | https://www.jstage.jst.go.jp/article/jtst/17/1/17_21-00271/_pdf/-char/en |
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