Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 47, Issue 61, Pages 25780-25794Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2022.06.007
Keywords
Ammonia; hydrogen mixtures; Chemical kinetics; Laminar flame speed correlations; Flamelet combustion modelling
Categories
Funding
- University of Modena and Reggio Emilia
Ask authors/readers for more resources
This study provides laminar flame speed correlations for ammonia/hydrogen/air mixtures under high pressure and high temperature conditions, and proposes a formula that adapts to the hydrogen content. It is of great importance for the development of suitable numerical tools for ammonia/hydrogen mixtures.
Ammonia/hydrogen mixtures are among the most promising solutions to decarbonize the transportation and energy sector. The implementation of these alternative energy carriers in practical systems requires developing suitable numerical tools, able to estimate their burning velocities as a function of both thermodynamic conditions and mixture quality. In this study, laminar flame speed correlations for ammonia/hydrogen/air mixtures are provided for high pressures (40 bar-130 bar) and elevated temperatures (720 K-1200 K), and equivalence ratios ranging from 0.4 to 1.5. Based on an extensive dataset of chemical kinetics simulations for ammonia/hydrogen blends (0-20-40-60-80-90-100 mol% of hydrogen), dedicated correlations are derived using a regression fitting. Besides these blend-specific correlations, a generalized (i.e., hydrogen-content adaptive) formulation, with hydrogen content used as additional parameter, is proposed and compared to the dedicated correlations.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available