Experimental study on crack leakage and diffusion behavior of full-scale hydrogen-blended natural gas pipeline

doi:10.3969/j.issn.1000-1565.2025.05.003

Abstract

Abstract: The study on the diffusion characteristics of hydrogen-blended natural gas leakage is of vital significance for ensuring the safety of transportation through pipelines and for the effective promotion of this technology. This research introduced a novel leakage experimental system. The system was used to conduct experimental research on the leakage and diffusion behaviors of hydrogen-blended natural gas. The research shows that crack induced leakage has obvious directionality, whereas the circular hole did not have. Experiments were carried out under three pressure levels. The results showed that increase of the operation pressure led to an increased risk in the near field, while the far field was not affected significant. Boltzmann formula was used to fit the experimental data.The results of fitting showed that the combustible gas cloud in air have higher flammability and explosiveness than the operating medium. This research provides theoretical basis and data support for the safe and reliable operation of hydrogen-blended natural gas systems, and promotes the application of hydrogen energy.

Key words: hydrogen energy, hydrogen-blended natural gas, cracks, leakage and diffusion

CLC Number:

TK91
TE88

HAN Zicong, DONG Shaohua, LI Jiamei, SUN Meng, CHEN Lin. Experimental study on crack leakage and diffusion behavior of full-scale hydrogen-blended natural gas pipeline[J]. Journal of Hebei University(Natural Science Edition), 2025, 45(5): 466-475.

References

[1] DURAKOVICG, DEL GRANADO P C, TOMASGARDA. Are green and blue hydrogen competitive or complementary? Insights from a decarbonized European power system analysis[J]. Energy, 2023, 282: 128282. DOI:10.1016/j.energy.2023.128282.
[2] 田立霞,黄元生,赵恒凤,等.均衡条件下加氢站的选址定容优化[J].河北大学学报(自然科学版), 2021,41(3): 245-250. DOI:10.3969/j.issn.1000-1565.2021.03.004.
[3] MENG X Y, GU A L, WU X G, et al. Status quo of China hydrogen strategy in the field of transportation and international comparisons[J]. Int J Hydrog Energy, 2021, 46(57): 28887-28899. DOI:10.1016/j.ijhydene.2020.11.049.
[4] 洪芦诚,王梓萩,林今,等.电-碳-绿证市场背景下电氢协同典型形态及参与模式研究综述[J/OL].电工技术学报,(2024-12-03)[2025-02-20]. DOI: 10.19595/j.cnki.1000-753.tces.241914.
[5] LI Y T, KUANG Z L, FAN Z Y, et al. Evaluation of the safe separation distances of hydrogen-blended natural gas pipelines in a jet fire scenario[J]. Int J Hydrog Energy, 2023, 48(49): 18804-18815. DOI:10.1016/j.ijhydene.2023.01.315.
[6] 伍其兵,张行,张萌,等.基于知识图谱的掺氢天然气管输研究现状与演进趋势[J].油气储运,2022,41(12):1380-1394.
[7] CRISTELLO J B, YANG J M, HUGO R, et al. Feasibility analysis of blending hydrogen into natural gas networks[J].Int J Hydrog Energy, 2023, 48(46): 17605-17629. DOI:10.1016/j.ijhydene.2023.01.156.
[8] SOFIAN M, HAQ M B, AL SHEHRI D, et al. A review on hydrogen blending in gas network: Insight into safety, corrosion, embrittlement, coatings and liners, and bibliometric analysis[J]. Int J Hydrog Energy, 2024, 60: 867-889. DOI:10.1016/j.ijhydene.2024.02.166.
[9] CHEN L, ANTONOV S, SONG K K, et al. Effect of solute atoms(C, Al and Si)on hydrogen embrittlement resistance of high-Mn TWIP steels[J]. Corros Sci, 2022, 203: 110376. DOI:10.1016/j.corsci.2022.110376.
[10] 吴瑕,谭旻倩,张沁蕊,等.掺氢天然气管道本体及焊缝裂纹扩展研究进展[J].安全与环境学报,2024,24(8):3063-3073.
[11] CRISTELLO J, DANG Z R, HUGO R, et al. Artificial intelligence based leak detection in blended hydrogen and natural gas pipelines[J].Int J Hydrog Energy, 2024, 91: 744-764. DOI:10.1016/j.ijhydene.2024.10.146.
[12] 孙齐,李凤,王一玮,等. 掺氢天然气管道泄漏扩散规律及监测探头布设方案[J].油气储运, 2022, 41(8): 916-923.
[13] LI X H, JIA M R, ZHANG R R, et al. Dispersion modeling and assessment of natural gas containing hydrogen released from a damaged gas transmission pipeline[J].Int J Hydrog Energy, 2022, 47(83): 35365-35385. DOI:10.1016/j.ijhydene.2022.08.104.
[14] 彭善碧,罗雪,杨林.掺氢天然气长输管道泄漏扩散规律数值模拟[J].石油与天然气化工, 2023,52(6): 44-52, 59. DOI:10.3969/j.issn.1007-3426.2023.06.007.
[15] 蒋宏业,寇明月,廖柯熹,等.掺氢天然气管道泄漏扩散研究现状及发展趋势[J].油气储运, 2024,43(8): 855-868.
[16] TIAN Y, QIN C, YANG Z R, et al. Numerical simulation study on the leakage and diffusion characteristics of high-pressure hydrogen gas in different spatial scenes[J].Int J Hydrog Energy, 2024, 50: 1335-1349. DOI:10.1016/j.ijhydene.2023.10.253.
[17] WANG K, LI C J, JIA W L, et al. Under-expanded jet and diffusion characteristics for small-hole leakage of hydrogen-blended natural gas in high-pressure pipelines[J]. Process Saf Environ Prot, 2024, 190: 195-211. DOI:10.1016/j.psep.2024.07.045.
[18] YANG K, LI W, DAI X L, et al. Effect of hydrogen ratio on leakage and explosion characteristics of hydrogen-blended natural gas in utility tunnels[J].Int J Hydrog Energy, 2024, 64: 132-147. DOI:10.1016/j.ijhydene.2024.03.247.
[19] QIAN J Y, LI X J, GAO Z X, et al. A numerical study of hydrogen leakage and diffusion in a hydrogen refueling station[J].Int J Hydrog Energy, 2020, 45(28): 14428-14439. DOI:10.1016/j.ijhydene.2020.03.140.
[20] 俞进,张皓,贾文龙,等.混氢天然气输气站场泄漏扩散数值模拟[J].西南石油大学学报(自然科学版),2022,44(6):153-161.DOI:10.11885/j.issn.1674-5086.2020.09.24.03.
[21] LIU K, HE C X, YU Y Z, et al. A study of hydrogen leak and explosion in different regions of a hydrogen refueling station[J].Int J Hydrog Energy, 2023, 48(37): 14112-14126. DOI:10.1016/j.ijhydene.2022.12.267.
[22] 韩辉,李玉星,朱建鲁,等.受限空间掺氢天然气燃爆特性的实验研究[J].实验室研究与探索, 2023,42(8): 48-52.DOI:10.19927/j.cnki.syyt.2023.08.011.
[23] CAO J J, WU J S, ZHANG H N, et al. Experimental study on hydrogen-blended natural gas explosion characteristic and severity control measure in utility tunnels[J].Int J Hydrog Energy, 2024, 92: 738-747. DOI:10.1016/j.ijhydene.2024.10.301.
[24] CHEN L H, HONG Y C, QI W, et al. The method to improve the accuracy of experiment using helium instead of hydrogen[J].Int J Hydrog Energy, 2024, 78: 244-255. DOI:10.1016/j.ijhydene.2024.06.223.
[25] 胡婧玮.非线性玻尔兹曼方程的傅里叶谱方法[J].计算数学, 2022,44(3): 289-304. DOI:10.12286/jssx.j2021-0887.
[26] ZHU J L, PAN J, ZHANG Y X, et al. Leakage and diffusion behavior of a buried pipeline of hydrogen-blended natural gas[J]. Int J Hydrog Energy, 2023, 48(30): 11592-11610. DOI:10.1016/j.ijhydene.2022.10.185.
[27] 闫妮.影响可燃气体爆炸极限主要因素相关研究综述[C] //中国消防协会学术工作委员会消防科技论文集, 2024.DOI:10.26914/c.cnkihy.2024.038130.
[28] LI Y C, ZHOU Y H, ZHANG Z L, et al. Experimental and theoretical investigation on hydrogen cloud explosion subjected to external turbulence[J].Int J Hydrog Energy, 2023, 48(40): 15331-15340. DOI:10.1016/j.ijhydene.2023.01.045.
[29] 徐中墨,李舒泓,刘振翼,等.开敞空间掺氢天然气爆燃特性影响因素研究[J].中国安全生产科学技术,2024,20(6):85-91.DOI:10.11731/j.issn.1673-193x.2024.06.011. (