Experimental and Kinetic Study on Laminar Burning Velocities of High Ratio Hydrogen Addition to CH 4 +O 2 +N 2 and NG+O 2 +N 2 Flames

Ziyue Zhang, Runfan Zhu, Yanqun Zhu, Wubin Weng, Yong He and Zhihua Wang ()
Additional contact information
Ziyue Zhang: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Runfan Zhu: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Yanqun Zhu: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Wubin Weng: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Yong He: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Zhihua Wang: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China

Energies, 2023, vol. 16, issue 14, 1-18

Abstract: In 2020, energy-related CO 2 emissions reached 31.5 Gt, leading to an unprecedented atmospheric CO 2 level of 412.5 ppm. Hydrogen blending in natural gas (NG) is a solution for maximizing clean energy utilization and enabling long-distance H 2 transport through pipelines. However, insufficient comprehension concerning the combustion characteristics of NG, specifically when blended with a high proportion of hydrogen up to 80%, particularly with minority species, persists. Utilizing the heat flux method at room temperature and 1 atm, this experiment investigated the laminar burning velocities of CH 4 /NG/H 2 /air/He flames incorporating minority species, specifically C 2 H 6 and C 3 H 8, within NG. The results point out the regularity of S L enhancement, reaching its maximum at an equivalence ratio of 1.4. Furthermore, the propensity for the enhancement of laminar burning velocity aligned with the observed thermoacoustic oscillation instability during fuel-rich regimes. The experimental findings were contrasted with kinetic simulations, utilizing the GRI 3.0 and San Diego mechanisms to facilitate analysis. The inclusion of H 2 augments the chemical reactions within the preheating zone, while the thermal effect from temperature is negligible. Both experimental and simulated results revealed that CH 4 and NG with a large proportion of H 2 had no difference, no matter whether from a laminar burning velocity or a kinetic analysis aspect.

Keywords: natural gas; hydrogen addition; laminar burning velocity; chemical kinetics; heat flux method (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: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/16/14/5265/pdf (application/pdf)
https://www.mdpi.com/1996-1073/16/14/5265/ (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:16:y:2023:i:14:p:5265-:d:1190148

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 ().