TY - GEN
T1 - INVESTIGATION OF THE LAMINAR BURNING VELOCITY AND EXHAUST CHARACTERISTICS OF METHANE-AMMONIA-HYDROGEN TERNARY BLENDS
AU - Nasim, Md Nayer
AU - Nawaz, Behlol
AU - Das, Shubhra Kanti
AU - Landis, Joshua
AU - Shaalan, Amr
AU - Van Dam, Noah
AU - Trelles, Juan Pablo
AU - Assanis, Dimitris
AU - Mack, J. Hunter
N1 - Publisher Copyright:
© 2023 by The United States Government.
PY - 2023
Y1 - 2023
N2 - Even though usage of hydrogen (H2) in the energy sector has gained a considerable amount of traction over the last decade, its high flame speed restricts its feasibility as a drop-in replacement for existing fuels in applications such as internal combustion engines and gas turbines. In order to address some potential issues, ammonia (NH3) can be used in conjunction with hydrogen, as its slow reaction kinetics offset that of H2 without compromising decarbonization efforts. However, simply replacing natural gas (primarily methane, CH4) with hydrogen/ammonia blends is not trivial due to compatibility issues associated with bulk combustion characteristics. In this study, methane-ammonia-hydrogen ternary blends are comprehensively investigated in terms of laminar burning velocity, flame morphology, stability, and emissions in order to understand transitional regimes between fossil-based approaches and carbon-free alternatives. This work presents the analysis of the combustion properties of different ammonia/methane/hydrogen blends at varied equivalence ratios in an optically accessible constant volume combustion chamber (CVCC) coupled with Z-type schlieren visualization. The emissions from each experimental trial were analyzed using a Fourier Transform Infrared (FTIR) Spectroscopy system for detailed speciation. Furthermore, a computational approach was implemented to validate the laminar burning velocity results using an established mechanism already tested for ternary blends.
AB - Even though usage of hydrogen (H2) in the energy sector has gained a considerable amount of traction over the last decade, its high flame speed restricts its feasibility as a drop-in replacement for existing fuels in applications such as internal combustion engines and gas turbines. In order to address some potential issues, ammonia (NH3) can be used in conjunction with hydrogen, as its slow reaction kinetics offset that of H2 without compromising decarbonization efforts. However, simply replacing natural gas (primarily methane, CH4) with hydrogen/ammonia blends is not trivial due to compatibility issues associated with bulk combustion characteristics. In this study, methane-ammonia-hydrogen ternary blends are comprehensively investigated in terms of laminar burning velocity, flame morphology, stability, and emissions in order to understand transitional regimes between fossil-based approaches and carbon-free alternatives. This work presents the analysis of the combustion properties of different ammonia/methane/hydrogen blends at varied equivalence ratios in an optically accessible constant volume combustion chamber (CVCC) coupled with Z-type schlieren visualization. The emissions from each experimental trial were analyzed using a Fourier Transform Infrared (FTIR) Spectroscopy system for detailed speciation. Furthermore, a computational approach was implemented to validate the laminar burning velocity results using an established mechanism already tested for ternary blends.
KW - Ammonia
KW - Emissions
KW - Fourier transform infrared (FTIR) spectroscopy
KW - Hydrogen
KW - Laminar burning velocity
KW - Natural gas
UR - https://www.scopus.com/pages/publications/85183468041
U2 - 10.1115/ICEF2023-109918
DO - 10.1115/ICEF2023-109918
M3 - Conference contribution
AN - SCOPUS:85183468041
T3 - Proceedings of ASME 2023 ICE Forward Conference, ICEF 2023
BT - Proceedings of ASME 2023 ICE Forward Conference, ICEF 2023
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2023 ICE Forward Conference, ICEF 2023
Y2 - 8 October 2023 through 11 October 2023
ER -