The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage Reservoirs
The inlet operating conditions of centrifugal compressors in natural gas storage reservoirs, as well as the natural gas composition, continuously vary over time, significantly impacting compressor performance. To analyze the influence of these factors on centrifugal compressors, a method for convert...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/15/3930 |
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| author | Hua Chen Gang Li Shengping Wang Ning Wang Lifeng Zhou Hao Zhou Yukang Sun Lijun Liu |
| author_facet | Hua Chen Gang Li Shengping Wang Ning Wang Lifeng Zhou Hao Zhou Yukang Sun Lijun Liu |
| author_sort | Hua Chen |
| collection | DOAJ |
| description | The inlet operating conditions of centrifugal compressors in natural gas storage reservoirs, as well as the natural gas composition, continuously vary over time, significantly impacting compressor performance. To analyze the influence of these factors on centrifugal compressors, a method for converting the performance curves of centrifugal compressors under actual operating conditions has been established. This performance conversion process is implemented through a custom-developed program, which incorporates the polytropic index and exhaust temperature calculations. Verification results show that the conversion error of this method is within 2%. Based on the proposed performance prediction method for non-similar operating conditions, the effects of varying inlet temperatures, pressures, and natural gas compositions on compressor performance are investigated. It is observed that an increase in inlet temperature results in a decrease in compressor power and pressure ratio; an increase in inlet pressure leads to higher power consumption, while the pressure ratio varies with the flow rate at the operating point; and as the average molar mass of natural gas decreases, both the pressure ratio and power exhibit a certain degree of reduction. |
| format | Article |
| id | doaj-art-fd1536a6e7dd4350a0b7f3eae4f6e69f |
| institution | Kabale University |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-fd1536a6e7dd4350a0b7f3eae4f6e69f2025-08-20T03:35:58ZengMDPI AGEnergies1996-10732025-07-011815393010.3390/en18153930The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage ReservoirsHua Chen0Gang Li1Shengping Wang2Ning Wang3Lifeng Zhou4Hao Zhou5Yukang Sun6Lijun Liu7Zhongyou Liaohe Engineering Co., Ltd., Panjin 124010, ChinaZhongyou Liaohe Engineering Co., Ltd., Panjin 124010, ChinaLiaohe Oilfield (Panjin) Gas Storage Co., Ltd., Panjin 124200, ChinaZhongyou Liaohe Engineering Co., Ltd., Panjin 124010, ChinaZhongyou Liaohe Engineering Co., Ltd., Panjin 124010, ChinaZhongyou Liaohe Engineering Co., Ltd., Panjin 124010, ChinaSchool of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaThe inlet operating conditions of centrifugal compressors in natural gas storage reservoirs, as well as the natural gas composition, continuously vary over time, significantly impacting compressor performance. To analyze the influence of these factors on centrifugal compressors, a method for converting the performance curves of centrifugal compressors under actual operating conditions has been established. This performance conversion process is implemented through a custom-developed program, which incorporates the polytropic index and exhaust temperature calculations. Verification results show that the conversion error of this method is within 2%. Based on the proposed performance prediction method for non-similar operating conditions, the effects of varying inlet temperatures, pressures, and natural gas compositions on compressor performance are investigated. It is observed that an increase in inlet temperature results in a decrease in compressor power and pressure ratio; an increase in inlet pressure leads to higher power consumption, while the pressure ratio varies with the flow rate at the operating point; and as the average molar mass of natural gas decreases, both the pressure ratio and power exhibit a certain degree of reduction.https://www.mdpi.com/1996-1073/18/15/3930compressorenergy consumptionperformance curveperformance conversionpolytropic exponentcomponent change |
| spellingShingle | Hua Chen Gang Li Shengping Wang Ning Wang Lifeng Zhou Hao Zhou Yukang Sun Lijun Liu The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage Reservoirs Energies compressor energy consumption performance curve performance conversion polytropic exponent component change |
| title | The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage Reservoirs |
| title_full | The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage Reservoirs |
| title_fullStr | The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage Reservoirs |
| title_full_unstemmed | The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage Reservoirs |
| title_short | The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage Reservoirs |
| title_sort | influence of variable operating conditions and components on the performance of centrifugal compressors in natural gas storage reservoirs |
| topic | compressor energy consumption performance curve performance conversion polytropic exponent component change |
| url | https://www.mdpi.com/1996-1073/18/15/3930 |
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