Experimental Study on a Supercritical CO<sub>2</sub> Centrifugal Compressor Used in a MWe Scale Power Cycle
The centrifugal compressor is the core component of supercritical CO<sub>2</sub> power cycle, and its performance and operation stability are research hotspots. However, there are few experimental studies, especially for compressors used in Mwe-scale power cycles. In this paper, based on...
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MDPI AG
2022-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/1/385 |
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| author | Yuming Zhu Shiqiang Liang Chaohong Guo Yongxian Guo Zhigang Li Xinyu Gong Yuyan Jiang |
| author_facet | Yuming Zhu Shiqiang Liang Chaohong Guo Yongxian Guo Zhigang Li Xinyu Gong Yuyan Jiang |
| author_sort | Yuming Zhu |
| collection | DOAJ |
| description | The centrifugal compressor is the core component of supercritical CO<sub>2</sub> power cycle, and its performance and operation stability are research hotspots. However, there are few experimental studies, especially for compressors used in Mwe-scale power cycles. In this paper, based on a 1 MWe supercritical CO<sub>2</sub> power cycle, a single-stage centrifugal supercritical CO<sub>2</sub> compressor is designed with speed of 40,000 RPM, a pressure ratio of 2.5 and a mass flow of 16.3 kg/s. In order to carry out the compressor test, a general experimental platform for MWe sCO<sub>2</sub> compressors is built. In the test, the mass flow range is 13.5~18 kg/s and the maximum experimental pressure ratio is close to 2.0. The performance curve of the compressor of 31,000 ± 1000 RPM is obtained, and the historical curve of the experiment is given. Then, the experimental curve is compared with the design curve using a dimensionless method. The isentropic head coefficient of the experimental curve is lower than the design value, and the experimental curves shift towards the boundary of small flow coefficient. Finally, the influence of compressor inlet condensation on compressor performance and the change of operating boundary is preliminarily explained. |
| first_indexed | 2024-03-11T10:07:58Z |
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| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T10:07:58Z |
| publishDate | 2022-12-01 |
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| series | Applied Sciences |
| spelling | doaj.art-8c6240343a894383b2e99742c089afe62023-11-16T14:56:19ZengMDPI AGApplied Sciences2076-34172022-12-0113138510.3390/app13010385Experimental Study on a Supercritical CO<sub>2</sub> Centrifugal Compressor Used in a MWe Scale Power CycleYuming Zhu0Shiqiang Liang1Chaohong Guo2Yongxian Guo3Zhigang Li4Xinyu Gong5Yuyan Jiang6Institute 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, ChinaInstitute of Engineering Thermophysics, Chinese Academy of Sciences, 11 Beisihuanxi Rd, Beijing 100190, ChinaThe centrifugal compressor is the core component of supercritical CO<sub>2</sub> power cycle, and its performance and operation stability are research hotspots. However, there are few experimental studies, especially for compressors used in Mwe-scale power cycles. In this paper, based on a 1 MWe supercritical CO<sub>2</sub> power cycle, a single-stage centrifugal supercritical CO<sub>2</sub> compressor is designed with speed of 40,000 RPM, a pressure ratio of 2.5 and a mass flow of 16.3 kg/s. In order to carry out the compressor test, a general experimental platform for MWe sCO<sub>2</sub> compressors is built. In the test, the mass flow range is 13.5~18 kg/s and the maximum experimental pressure ratio is close to 2.0. The performance curve of the compressor of 31,000 ± 1000 RPM is obtained, and the historical curve of the experiment is given. Then, the experimental curve is compared with the design curve using a dimensionless method. The isentropic head coefficient of the experimental curve is lower than the design value, and the experimental curves shift towards the boundary of small flow coefficient. Finally, the influence of compressor inlet condensation on compressor performance and the change of operating boundary is preliminarily explained.https://www.mdpi.com/2076-3417/13/1/385supercritical CO<sub>2</sub>centrifugal compressorexperimentMWe scale |
| spellingShingle | Yuming Zhu Shiqiang Liang Chaohong Guo Yongxian Guo Zhigang Li Xinyu Gong Yuyan Jiang Experimental Study on a Supercritical CO<sub>2</sub> Centrifugal Compressor Used in a MWe Scale Power Cycle Applied Sciences supercritical CO<sub>2</sub> centrifugal compressor experiment MWe scale |
| title | Experimental Study on a Supercritical CO<sub>2</sub> Centrifugal Compressor Used in a MWe Scale Power Cycle |
| title_full | Experimental Study on a Supercritical CO<sub>2</sub> Centrifugal Compressor Used in a MWe Scale Power Cycle |
| title_fullStr | Experimental Study on a Supercritical CO<sub>2</sub> Centrifugal Compressor Used in a MWe Scale Power Cycle |
| title_full_unstemmed | Experimental Study on a Supercritical CO<sub>2</sub> Centrifugal Compressor Used in a MWe Scale Power Cycle |
| title_short | Experimental Study on a Supercritical CO<sub>2</sub> Centrifugal Compressor Used in a MWe Scale Power Cycle |
| title_sort | experimental study on a supercritical co sub 2 sub centrifugal compressor used in a mwe scale power cycle |
| topic | supercritical CO<sub>2</sub> centrifugal compressor experiment MWe scale |
| url | https://www.mdpi.com/2076-3417/13/1/385 |
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