Ammonia/Ethane Blends Combustion and Oxidation: Experimental and Numerical Study
Source abstract
Abstract
Ammonia is considered as a promising hydrogen carrier and a carbon-free fuel. Methods for improving ammonia combustion characteristics often involve its co-firing with more reactive fuels (natural gas, biofuels, etc.). Among the natural gas components, ethane is second most abundant. Therefore, the development of detailed chemical–kinetic mechanisms that accurately consider the interactions between ammonia and each component of natural gas is very important. Such mechanisms must be based on experimental data obtained under a wide range of conditions. In this work, NH3/C2H6/O2/Ar blends were studied in JSR (φ = 0.5–2.0, p = 1 atm, τ = 1 s, T = 800–1300 K) and in a shock tube (p = 7.3–8.6 atm, T = 1260–1590 K). Additionally, the structure of premixed flames was investigated (φ = 0.8–1.2, p = 1–5 atm). Eleven recently published detailed chemical–kinetic mechanisms were tested. The model Shrestha-2025 was updated to achieve better agreement with the entire set of experimental data. The effect of p and φ on intermediate species concentration was analyzed. Ammonia and ethane consumption pathways were also examined.
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Research context
OpenAlex topics: Advanced Combustion Engine Technologies · Combustion and flame dynamics · Combustion and Detonation Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Novosibirsk 630090, Russia
Joint Institute for High Temperatures RAS, Moscow 125412, Russia
Funding
Russian Science Foundation
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