An Updated Comprehensive Chemical Kinetic Mechanism for Ammonia and its Blends with Hydrogen, Methanol, and
N
-Heptane
2023-01-0204
Ammonia is a promising carbon-free alternative fuel for use in combustion systems. The main associated challenges are its relatively low reactivity and high NOx emissions compared to conventional fuels. Therefore, the combustion behaviour of ammonia and ammonia blends still needs to be better understood over a wide range of conditions. To this end, a comprehensive chemical kinetic mechanism C3MechV3.4, which is an update of C3MechV3.3, has been developed for improved predictions of the combustion of ammonia and ammonia blends. C3MechV3.4 has been validated using a wide range of experimental results for pure ammonia and ammonia/hydrogen, ammonia/methanol and ammonia/n-heptane blends. These validations target different data sets including ignition delay times, species profiles measured as a function of time, and/or temperature and laminar flame speeds over a wide range of conditions. The updated developed mechanism gives good predictions for pure ammonia and its blends with hydrogen, methanol and n-heptane. The most important reactions affecting predictions in different regimes for the various ammonia mixtures are discussed.
Citation: Hamdy, M., Nadiri, S., Mohamed, A., Dong, S. et al., "An Updated Comprehensive Chemical Kinetic Mechanism for Ammonia and its Blends with Hydrogen, Methanol, and N-Heptane," SAE Technical Paper 2023-01-0204, 2023, https://doi.org/10.4271/2023-01-0204. Download Citation
Author(s):
Mohamed Hamdy, Solmaz Nadiri, Ahmed Mohamed, Shijun Dong, Yuxiang Wu, Ravi Fernandes, Chongwen Zhou, Shuaishuai Liu, Kelly Senecal, Kuiwen Zhang, Henry Curran
Affiliated:
National Univ. of Ireland, Galway & Assiut Univ., Egypt, Physkalisch Technische Bundesanstalt, University of Galway, Huazhong University of Science and Tech, Beihang University, Physikalisch-Technische Bundesanstalt, Convergent Science Inc., National University of Ireland, Galway
Event:
WCX SAE World Congress Experience
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Ignition timing
Alternative fuels
Nitrogen oxides
Methanol
Combustion and combustion processes
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