One-Dimensional Computation Method of Supercritical CO<sub>2</sub> Labyrinth Seal
An actual one-dimensional(1-D) computation method for a labyrinth seal is proposed. Relevant computation hypotheses for the 1-D method are analyzed and the specificity of internal flow in an SCO<sub>2</sub> (supercritical CO<sub>2</sub>) labyrinth seal is explored in advance....
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MDPI AG
2020-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/17/5771 |
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| author | Yuming Zhu Yuyan Jiang Shiqiang Liang Chaohong Guo Yongxian Guo Haofei Cai |
| author_facet | Yuming Zhu Yuyan Jiang Shiqiang Liang Chaohong Guo Yongxian Guo Haofei Cai |
| author_sort | Yuming Zhu |
| collection | DOAJ |
| description | An actual one-dimensional(1-D) computation method for a labyrinth seal is proposed. Relevant computation hypotheses for the 1-D method are analyzed and the specificity of internal flow in an SCO<sub>2</sub> (supercritical CO<sub>2</sub>) labyrinth seal is explored in advance. Then, the experimental correlation discharge coefficient and the residual kinetic energy coefficient used in SCO<sub>2</sub> labyrinth seals are proposed. In addition, the speed of sound in two-phase flow is corrected in the 1-D method. All recent experimental results of the SCO<sub>2</sub> labyrinth seal are sorted out and the latest experimental results of a stepped-staggered labyrinth seal are proposed to verify the accuracy and applicability of the 1-D method. Finally, the sealing efficiency of the SCO<sub>2</sub> labyrinth seals are analyzed using the 1-D method. |
| first_indexed | 2024-03-10T17:07:20Z |
| format | Article |
| id | doaj.art-e108ce88b4ab43a68dd1ddf1262cb86a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T17:07:20Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj.art-e108ce88b4ab43a68dd1ddf1262cb86a2023-11-20T10:47:51ZengMDPI AGApplied Sciences2076-34172020-08-011017577110.3390/app10175771One-Dimensional Computation Method of Supercritical CO<sub>2</sub> Labyrinth SealYuming Zhu0Yuyan Jiang1Shiqiang Liang2Chaohong Guo3Yongxian Guo4Haofei Cai5Institute of Engineering Thermophysics, Chinese Academy of Sciences, 11 Beisihuanxi Rd, Beijing 100190, ChinaInstitute of Engineering Thermophysics, Chinese Academy of Sciences, 11 Beisihuanxi Rd, Beijing 100190, ChinaInstitute of Engineering Thermophysics, Chinese Academy of Sciences, 11 Beisihuanxi Rd, Beijing 100190, ChinaInstitute of Engineering Thermophysics, Chinese Academy of Sciences, 11 Beisihuanxi Rd, Beijing 100190, ChinaInstitute of Engineering Thermophysics, Chinese Academy of Sciences, 11 Beisihuanxi Rd, Beijing 100190, ChinaInstitute of Engineering Thermophysics, Chinese Academy of Sciences, 11 Beisihuanxi Rd, Beijing 100190, ChinaAn actual one-dimensional(1-D) computation method for a labyrinth seal is proposed. Relevant computation hypotheses for the 1-D method are analyzed and the specificity of internal flow in an SCO<sub>2</sub> (supercritical CO<sub>2</sub>) labyrinth seal is explored in advance. Then, the experimental correlation discharge coefficient and the residual kinetic energy coefficient used in SCO<sub>2</sub> labyrinth seals are proposed. In addition, the speed of sound in two-phase flow is corrected in the 1-D method. All recent experimental results of the SCO<sub>2</sub> labyrinth seal are sorted out and the latest experimental results of a stepped-staggered labyrinth seal are proposed to verify the accuracy and applicability of the 1-D method. Finally, the sealing efficiency of the SCO<sub>2</sub> labyrinth seals are analyzed using the 1-D method.https://www.mdpi.com/2076-3417/10/17/5771supercritical CO<sub>2</sub>labyrinth seal1-D computationexperiment |
| spellingShingle | Yuming Zhu Yuyan Jiang Shiqiang Liang Chaohong Guo Yongxian Guo Haofei Cai One-Dimensional Computation Method of Supercritical CO<sub>2</sub> Labyrinth Seal Applied Sciences supercritical CO<sub>2</sub> labyrinth seal 1-D computation experiment |
| title | One-Dimensional Computation Method of Supercritical CO<sub>2</sub> Labyrinth Seal |
| title_full | One-Dimensional Computation Method of Supercritical CO<sub>2</sub> Labyrinth Seal |
| title_fullStr | One-Dimensional Computation Method of Supercritical CO<sub>2</sub> Labyrinth Seal |
| title_full_unstemmed | One-Dimensional Computation Method of Supercritical CO<sub>2</sub> Labyrinth Seal |
| title_short | One-Dimensional Computation Method of Supercritical CO<sub>2</sub> Labyrinth Seal |
| title_sort | one dimensional computation method of supercritical co sub 2 sub labyrinth seal |
| topic | supercritical CO<sub>2</sub> labyrinth seal 1-D computation experiment |
| url | https://www.mdpi.com/2076-3417/10/17/5771 |
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