Comparison of Cooling Different Parts in a High Pressure Ratio Centrifugal Compressor
Cooling in a centrifugal compressor can improve the performance and reduce the impeller temperature. In a centrifugal compressor, external walls can be cool down, which is known as the shell cooling. This method avoids undesirable effects induced by other cooling methods. Cooling can be applied on d...
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| Format: | Article |
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MDPI AG
2016-12-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/7/1/16 |
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| author | S. Mostafa Moosania Xinqian Zheng |
| author_facet | S. Mostafa Moosania Xinqian Zheng |
| author_sort | S. Mostafa Moosania |
| collection | DOAJ |
| description | Cooling in a centrifugal compressor can improve the performance and reduce the impeller temperature. In a centrifugal compressor, external walls can be cool down, which is known as the shell cooling. This method avoids undesirable effects induced by other cooling methods. Cooling can be applied on different external walls, such as the shroud, diffuser or the back plate. This paper focuses on seeking the most effective cooling place to increase the performance and reduce the impeller temperature. It is found that shroud cooling improves the compressor performance the most. Shroud cooling with 2400 W of cooling power increases the pressure ratio by 4.6% and efficiency by 1.49%. Each 500 W increase in the shroud cooling power, increases the efficiency by 0.3%. Diffuser cooling and back plate cooling have an identical effect on the polytropic efficiency. However, back plate cooling increases the pressure ratio more than diffuser cooling. Furthermore, only back plate cooling reduces the impeller temperature, and with 2400 W of cooling power, the impeller temperature reduces by 45 K. |
| first_indexed | 2024-04-13T15:02:20Z |
| format | Article |
| id | doaj.art-4b7311f2552745839e0e4b8d8eeec0b8 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-13T15:02:20Z |
| publishDate | 2016-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-4b7311f2552745839e0e4b8d8eeec0b82022-12-22T02:42:15ZengMDPI AGApplied Sciences2076-34172016-12-01711610.3390/app7010016app7010016Comparison of Cooling Different Parts in a High Pressure Ratio Centrifugal CompressorS. Mostafa Moosania0Xinqian Zheng1Turbomachinery Laboratory, State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, ChinaTurbomachinery Laboratory, State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, ChinaCooling in a centrifugal compressor can improve the performance and reduce the impeller temperature. In a centrifugal compressor, external walls can be cool down, which is known as the shell cooling. This method avoids undesirable effects induced by other cooling methods. Cooling can be applied on different external walls, such as the shroud, diffuser or the back plate. This paper focuses on seeking the most effective cooling place to increase the performance and reduce the impeller temperature. It is found that shroud cooling improves the compressor performance the most. Shroud cooling with 2400 W of cooling power increases the pressure ratio by 4.6% and efficiency by 1.49%. Each 500 W increase in the shroud cooling power, increases the efficiency by 0.3%. Diffuser cooling and back plate cooling have an identical effect on the polytropic efficiency. However, back plate cooling increases the pressure ratio more than diffuser cooling. Furthermore, only back plate cooling reduces the impeller temperature, and with 2400 W of cooling power, the impeller temperature reduces by 45 K.http://www.mdpi.com/2076-3417/7/1/16integrated coolinghigh pressure ratiocentrifugal compressorperformanceimpeller temperature |
| spellingShingle | S. Mostafa Moosania Xinqian Zheng Comparison of Cooling Different Parts in a High Pressure Ratio Centrifugal Compressor Applied Sciences integrated cooling high pressure ratio centrifugal compressor performance impeller temperature |
| title | Comparison of Cooling Different Parts in a High Pressure Ratio Centrifugal Compressor |
| title_full | Comparison of Cooling Different Parts in a High Pressure Ratio Centrifugal Compressor |
| title_fullStr | Comparison of Cooling Different Parts in a High Pressure Ratio Centrifugal Compressor |
| title_full_unstemmed | Comparison of Cooling Different Parts in a High Pressure Ratio Centrifugal Compressor |
| title_short | Comparison of Cooling Different Parts in a High Pressure Ratio Centrifugal Compressor |
| title_sort | comparison of cooling different parts in a high pressure ratio centrifugal compressor |
| topic | integrated cooling high pressure ratio centrifugal compressor performance impeller temperature |
| url | http://www.mdpi.com/2076-3417/7/1/16 |
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