All Issue

2023 Vol.28, Issue 4 Preview Page

Research Article

Flame Stability and Emission Characteristics of Non-Premixed Ammonia Cracking Gas/Air Combustion in a Tangential Injection Burner

접선 분사 연소기 내 암모니아 크래킹 혼합물/공기 비예혼합 화염의 안정화 및 NOx 배출 특성 연구

Joo-Won Park12
,
Namsu Kim2†
,
Young Tae Guahk2
,
Hookyung Lee2
,
Minjung Lee3
,
Seong-kyun Im1
박 주원12
,
김 남수2†
,
곽 영태2
,
이 후경2
,
이 민정3
,
임 성균1
1School of Mechanical Engineering, Korea University
2Energy Convergence System Research Department, Korea Institute of Energy Research
3Department of Future Energy Convergence, Seoul National University of Science and Technology
1고려대학교 기계공학과
2한국에너지기술연구원 융합시스템연구단
3서울과학기술대학교 미래에에너지융합학과
*Corresponding Author
31 December 2023. pp. 36-42
PDF XML Citation
Abstract

Combustion characteristics of partial cracking ammonia gas were investigated using a tangential injection burner. As the cracking ratio increased, the stable operational regime expanded, leading to the blowout limit of 𝜙=0.17. Higher injection velocities increased the wall peak temperature due to augmented heat transfer but lowered temperatures near the injector as the high-temperature reaction zone shifted downstream. NO exhibited peak values at 40-60% cracking ratio, attributed to enhanced radical formation with hydrogen addition. Numerical simulations, employing a perfectly stirred reactor model and a steady laminar flamelet model, demonstrated that these models, based on different assumption of flame structure, accurately reproduce NO levels in low and high cracking ratio conditions, respectively.

Keywords
Ammonia
Ammonia cracking
Tangential injection
NO emission
Damköhler number
References
1
A.M. Elbaz, S. Wang, T.F. Guiberti, W.L. Roberts, Review on the recent advances on ammonia combustion from the fundamentals to the applications, Fuel Commun. 10 (2022) 100053. 10.1016/j.jfueco.2022.100053
2
H. Lee, M.-J. Lee, Recent Advances in Ammonia Combustion Technology in Thermal Power Generation System for Carbon Emission Reduction, Energies 14 (2021) 5604. 10.3390/en14185604
3
A. Valera-Medina, H. Xiao, M. Owen-Jones, W.I.F. David, P.J. Bowen, Ammonia for power, Prog. Energy Combust. Sci. 69 (2018) 63-102. 10.1016/j.pecs.2018.07.001
4
T. Lee, Y.T. Guahk, N. Kim, H. Lee, M.J. Lee, Stability and emission characteristics of ammonia-air flames in a lean-lean fuel staging tangential injection combustor, Combust. Flame 248 (2023) 112593. 10.1016/j.combustflame.2022.112593
5
A. Valera-Medina, H. Xiao, M. Owen-Jones, W.I.F. David, P.J. Bowen, Ammonia-methane combustion in tangential swirl burners for gas turbine power generation, Appl. Energy 185 (2017) 1362-1371. 10.1016/j.apenergy.2016.02.073
6
E.C. Okafor, M. Tsukamoto, A. Hayakawa, K.D. K.A. Somarathne, T. Kudo, T. Tsujimura, H. Kobayashi, Influence of wall heat loss on the emission characteristics of premixed ammonia-air swirling flames interacting with the combustor wall, Proc. Combust. Inst. 38 (2021) 5139-5146. 10.1016/j.proci.2020.06.142
7
A.A. Khateeb, T.F. Guiberti, X. Zhu, M. Younes, A. Jamal, W.L. Roberts, Stability limits and exhaust NO performances of ammonia-methane-air swirl flames, Exp. Therm. Fluid Sci., 114 (2020) 110058. 10.1016/j.expthermflusci.2020.110058
8
K. Bioche, L. Bricteux, A. Bertolino, A. Parente, J. Blondeau, Large Eddy Simulation of rich ammonia/ hydrogen/air combustion in a gas turbine burner, Int. J. Hydrogen Energy 46 (2021) 39548-39562. 10.1016/j.ijhydene.2021.09.164
9
G. Vignat, D. Durox, S. Candel, The suitability of different swirl number definitions for describing swirl flows: Accurate, common and (over-) simplified formulations, Prog. Energy Combust. Sci. 89 (2022) 100969. 10.1016/j.pecs.2021.100969
10
I. Hu, S.M. Correa, Calculations of turbulent flames using a PSR microstructural library, Symp. (Int.) on Combust. 26 (1996) 307-313. 10.1016/S0082-0784(96)80230-X
11
Z. Chen, V.M. Reddy, S. Ruan, N.A.K. Doan, W.L. Roberts, N. Swaminathan, Simulation of MILD combustion using Perfectly Stirred Reactor model, Proc. Combust. Inst. 36 (2017) 4279-4286. 10.1016/j.proci.2016.06.007
12
J.P.H. Sanders, J.-Y. Chen, I. Gökalp, Flamelet-based modeling of NO formation in turbulent hydrogen jet diffusion flames, Combust. Flame 111 (1997) 1-15. 10.1016/S0010-2180(97)00094-1
13
A. Stagni, C. Cavallotti, S. Arunthanayothin, Y. Song, O. Herbinet, F. Battin-Leclerc, T. Faravelli, An experimental, theoretical and kinetic-modeling study of the gas-phase oxidation of ammonia, React. Chem. Eng. 5 (2020) 696-711. 10.1039/C9RE00429G
14
Cantera 2.6.0, an open-source suite of tools for problems involving chemical kinetics, thermodynamics, and transport processes. Available: https:// cantera.org/
15
B. Mei, J. Zhang, X. Shi, Z. Xi, Y. Li, Enhancement of ammonia combustion with partial fuel cracking strategy: Laminar flame propagation and kinetic modeling investigation of NH3/H2/N2/air mixtures up to 10 atm, Combust. Flame 231 (2021) 111472. 10.1016/j.combustflame.2021.111472
16
E.R. Hawkes, R. Sankaran, J.C. Sutherland, J.H. Chen, Scalar mixing in direct numerical simulations of temporally evolving plane jet flames with skeletal CO/H2 kinetics, Proc. Combust. Inst. 31 (2007) 1633-1640. 10.1016/j.proci.2006.08.079
Information
  • Publisher :The Korean Society Combustion
  • Publisher(Ko) :한국연소학회
  • Journal Title :Journal of The Korean Society Combustion
  • Journal Title(Ko) :한국연소학회지
  • Volume : 28
  • No :4
  • Pages :36-42
  • Received Date : 2023-11-25
  • Revised Date : 2023-12-27
  • Accepted Date : 2023-12-27
  • DOI :https://doi.org/10.15231/jksc.2023.28.4.036
Journal Informaiton Journal of The Korean Society Combustion Journal of The Korean Society Combustion
Online submission
  • ESCI_jkosco
  • NRF
  • KOFST
  • crossref cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close