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© 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

The transportation of hydrogen is a weak link in the large-scale development of the hydrogen energy industry. Injecting hydrogen into the natural gas pipeline network for transportation is an efficient way to achieve the large-scale, long-distance, and low-cost transportation of hydrogen. Hydrogen can lead to hydrogen embrittlement in natural gas pipelines and cause safety incidents if hydrogen and natural gas are not mixed uniformly. Therefore, it is necessary to study the blending process and blending uniformity of hydrogen and natural gas. In this study, a three-dimensional model of the hydrogen-injected natural gas pipeline was constructed. The effects of hydrogen injection inlet and turbulator configuration on the mixing process of hydrogen and natural gas were investigated using a computational fluid dynamics approach. The results show that increasing the number of hydrogen injection inlets shortens the distance L98% of uniform mixing of hydrogen and natural gas. Increasing the radial distance r from the initial hydrogen mixing positions to the center of the pipeline will shorten the distance for uniform gas mixing in the pipeline. The addition of turbulator configurations in the pipeline significantly reduces the distance to uniform gas mixing. Changing the distance Lturb from the turbulator to the initial mixing position further shortens the distance between hydrogen and natural gas mixing uniformly. The results of this study provide a reference for the structural design of the hydrogen–natural gas mixing pipeline and the gas distribution state during the mixing process.

Details

Title
Computational fluid dynamic analysis of hydrogen-injected natural gas for mixing and transportation behaviors in pipeline structures
Author
Shuangjie Yan 1 ; Jia, Guanwei 1   VIAFID ORCID Logo  ; Xu, Weiqing 2   VIAFID ORCID Logo  ; Li, Rui 3 ; Lu, YangHui 4 ; Cai, Maolin 2 

 School of Physics and Electronics, Henan University, Kaifeng, China 
 School of Automation Science and Electrical Engineering, Beihang University, Beijing, China; Pneumatic and Thermodynamic Energy Storage and Supply Beijing Key Laboratory, Beijing, China 
 General Institute of Science and Technology of National Petroleum and Natural Gas Pipeline Network Group Co., Ltd, Langfang, Hebei, China 
 State Power Investment Corporation Research Institute Co., Ltd, Beijing, China 
Pages
2912-2928
Section
ORIGINAL ARTICLES
Publication year
2023
Publication date
Aug 2023
Publisher
John Wiley & Sons, Inc.
e-ISSN
20500505
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2847207645
Copyright
© 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.