New insight into NH3-H2 mutual inhibiting effects and dynamic regimes at low-intermediate temperatures

MV Manna, P Sabia, G Sorrentino, T Viola… - Combustion and …, 2022 - Elsevier
The hydrogen effect as a “fuel enhancer” on ammonia oxidation features is a relevant topic
for ammonia-based energy conversion systems. For the most, scientific literature is focused …

Ammonia oxidation features in a Jet Stirred Flow Reactor. The role of NH2 chemistry.

P Sabia, MV Manna, A Cavaliere, R Ragucci… - Fuel, 2020 - Elsevier
This work focuses on the characterization of the oxidation process of NH 3/O 2/N 2 mixtures
in a quartz Jet Stirred Flow Reactor (JSFR). Experimental tests are run as a function of …

Oxidation and pyrolysis of ammonia mixtures in model reactors

MV Manna, P Sabia, R Ragucci, M de Joannon - Fuel, 2020 - Elsevier
The present work was devoted to an experimental characterization of NH 3 oxidation and
pyrolysis processes in model reactors. The oxidation tests were performed in a Jet Stirred …

Probing High-Temperature Amine Chemistry: Is the Reaction NH3 + NH2 ⇄ N2H3 + H2 Important?

P Marshall, P Glarborg - The Journal of Physical Chemistry A, 2023 - ACS Publications
The reaction NH3+ NH2⇄ N2H3+ H2 (R1) has been identified as a key step to explain
experimental results for pyrolysis and oxidation of ammonia. However, no direct …

Mutual inhibition effect of hydrogen and ammonia in oxidation processes and the role of ammonia as “strong” collider in third-molecular reactions

P Sabia, MV Manna, R Ragucci… - International Journal of …, 2020 - Elsevier
Ammonia/hydrogen interaction in oxidation chemistry has been extensively valued for
traditional flames, while no-experimental evidences have been provided at lower …

Ammonia oxidation regimes and transitional behaviors in a Jet Stirred Flow Reactor

MV Manna, P Sabia, R Ragucci, M de Joannon - Combustion and Flame, 2021 - Elsevier
The present work was devoted to the experimental identification of combustion regimes for
NH 3/O 2 mixtures diluted in N 2 in a Jet Stirred Flow Reactor (JSFR). Low Temperature (LT) …

Critical issues of chemical kinetics in MILD combustion

P Sabia, M De Joannon - Frontiers in Mechanical Engineering, 2020 - frontiersin.org
Mild combustion processes occur with mixtures highly diluted and preheated by a strong
recirculation of hot exhausted gases (thus mass and sensible enthalpy) within the …

[HTML][HTML] The role of chemistry in the oscillating combustion of hydrocarbons: An experimental and theoretical study

A Stagni, Y Song, LA Vandewalle… - Chemical Engineering …, 2020 - Elsevier
The stable operation of low-temperature combustion processes is an open challenge, due to
the presence of undesired deviations from steady-state conditions: among them, oscillatory …

On H2–O2 oxidation in several bath gases

P Sabia, M de Joannon - International Journal of Hydrogen Energy, 2020 - Elsevier
The oxidation process of H 2/O 2 mixtures has received a lot of attention since it represents
the first step for the development of detailed kinetic schemes for complex fuels within the …

Identifying the skeleton mechanism for oscillatory combustion with functional weight analysis

S Liang, J He, L Ji, D Zhao - Combustion and Flame, 2022 - Elsevier
In this work, a functional weight (FW) method is proposed to identify the primary mechanism
of oscillatory combustion in MILD combustors. Inter-species interactions are quantitatively …