TY - CONF
T1 - Product gas characteristics of strain stabilized ammonia/air premixed laminar flames
AU - Hayakawa, Akihiro
AU - Hirano, Yuta
AU - Okafor, Ekenechukwu C.
AU - Kudo, Taku
AU - Kobayashi, Hideaki
N1 - Funding Information:
This research was supported by the Council for Science, Technology and Innovation (CSTI), the Cross-ministerial Strategic Innovation Promotion Program (SIP), "Energy Carriers" (Funding Agency: Japan Science Technology Agency (JST)). We also acknowledge Best Instruments Co. Ltd. for the help of development of the dilution sampling method.
Publisher Copyright:
© Asia-Pacific Conference on Combustion, ASPACC 2019.All right reserved.
PY - 2019
Y1 - 2019
N2 - Recently ammonia has attracted interest as a hydrogen energy carrier as well as a carbon-free fuel. Fundamental combustion characteristics of ammonia mixtures, such as the laminar burning velocity and ignition characteristics, have been clarified. However, product gas characteristics which are important for the use of ammonia in combustors have not been clarified because of difficulty of experimentation. In this study, product gas characteristics of strain stabilized ammonia/air premixed laminar flames were experimentally investigated. An FTIR gas analyzer were employed for gas analysis. Although required amount of sampling gas for FTIR gas analyzer is relatively large, it could be reduced using the dilution sampling method. As a result, product gas characteristics from lean to rich ammonia/air flames were evaluated. Then, analysis of the chemical kinetics of ammonia/air flames was performed using the detailed reaction mechanism developed by Okafor et al. The results showed that some important reactions may need to be updated for accurate modelling of the product gas characteristics.
AB - Recently ammonia has attracted interest as a hydrogen energy carrier as well as a carbon-free fuel. Fundamental combustion characteristics of ammonia mixtures, such as the laminar burning velocity and ignition characteristics, have been clarified. However, product gas characteristics which are important for the use of ammonia in combustors have not been clarified because of difficulty of experimentation. In this study, product gas characteristics of strain stabilized ammonia/air premixed laminar flames were experimentally investigated. An FTIR gas analyzer were employed for gas analysis. Although required amount of sampling gas for FTIR gas analyzer is relatively large, it could be reduced using the dilution sampling method. As a result, product gas characteristics from lean to rich ammonia/air flames were evaluated. Then, analysis of the chemical kinetics of ammonia/air flames was performed using the detailed reaction mechanism developed by Okafor et al. The results showed that some important reactions may need to be updated for accurate modelling of the product gas characteristics.
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M3 - Paper
AN - SCOPUS:85083951603
T2 - 12th Asia-Pacific Conference on Combustion, ASPACC 2019
Y2 - 1 July 2019 through 5 July 2019
ER -