Research on aerodynamic performance of centrifugal compressors for hydrogen-mixed natural gas.

Autor: Dong J; Chinese Petroleum Corporation Natural Gas Engineering Research Institute of Southwest Oil and Gas Field Company, Chengdu, China.; Key Laboratory of Natural gas Quality Control and Energy measurement for state market regulation, State Administration for Market Regulation, Chengdu, China.; School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, China., Song B; Chinese Petroleum Corporation Natural Gas Engineering Research Institute of Southwest Oil and Gas Field Company, Chengdu, China.; Key Laboratory of Natural gas Quality Control and Energy measurement for state market regulation, State Administration for Market Regulation, Chengdu, China., Yuan X; Chinese Petroleum Corporation Natural Gas Engineering Research Institute of Southwest Oil and Gas Field Company, Chengdu, China.; Key Laboratory of Natural gas Quality Control and Energy measurement for state market regulation, State Administration for Market Regulation, Chengdu, China., Jin W; School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, China., Wang J; School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, China.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2024 Oct 28; Vol. 19 (10), pp. e0312829. Date of Electronic Publication: 2024 Oct 28 (Print Publication: 2024).
DOI: 10.1371/journal.pone.0312829
Abstrakt: Natural gas-doped hydrogen transportation has been widely used in industrial engineering. The change of the physical parameters of the conveying medium affects the working performance of the centrifugal compressor. This study aims to explore the aerodynamic performance of centrifugal compressors for hydrogen mixed natural gas, including the effects of hydrogen blending ratio (HBR) and inlet temperature on the pressure ratio and isentropic efficiency of compressors. The numerical simulation method is used and the results are compared with the experimental results to determine the reliability of the numerical simulation method. The results show that the pressure ratio decreases with the increase of HBR where the inlet temperature and rotation speed are constant. The pressure ratio and efficiency of the compressor are the highest when the conveying medium is pure natural gas (HBR = 0). The maximum pressure ratio reduction is 4.8% when the HBR is 5% and the inlet temperature is increased by 20 K. In summary, when the conveying medium of the compressor changes from pure natural gas to hydrogen-mixed natural gas, the working range and efficiency of the compressor will be reduced. Therefore, it is necessary to increase the rotation speed of the compressor or redesign the centrifugal compressor for hydrogen-mixed natural gas in order to achieve a constant flow rate at the outlet of the compressor.
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2024 Dong et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
Databáze: MEDLINE
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