The Influence of Variable Operating Conditions and Components on the Performance of Centrifugal Compressors in Natural Gas Storage Reservoirs

Hua Chen, Gang Li, Shengping Wang, Ning Wang, Lifeng Zhou, Hao Zhou, Yukang Sun and Lijun Liu ()
Additional contact information
Hua Chen: Zhongyou Liaohe Engineering Co., Ltd., Panjin 124010, China
Gang Li: Zhongyou Liaohe Engineering Co., Ltd., Panjin 124010, China
Shengping Wang: Liaohe Oilfield (Panjin) Gas Storage Co., Ltd., Panjin 124200, China
Ning Wang: Zhongyou Liaohe Engineering Co., Ltd., Panjin 124010, China
Lifeng Zhou: Zhongyou Liaohe Engineering Co., Ltd., Panjin 124010, China
Hao Zhou: Zhongyou Liaohe Engineering Co., Ltd., Panjin 124010, China
Yukang Sun: School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Lijun Liu: School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Energies, 2025, vol. 18, issue 15, 1-15

Abstract: 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.

Keywords: compressor; energy consumption; performance curve; performance conversion; polytropic exponent; component change; inlet condition (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/15/3930/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/15/3930/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:15:p:3930-:d:1708197

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().