Computational studies on one-dimensional laminar, premixed hydrogen-nitric oxide flames

Journal Article · Wed Jan 01 04:00:00 EST 1992 · Combustion and Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(92)90004-9· OSTI ID:5569454

Goyal, G; Paul, P J; Mukunda, H S ^[1]

---

1. Dept. of Aerospace Engineering, Indian Inst. of Science, Bangalore 560012 (IN)

In this paper results of computational studies of adiabatic flame propagation in the hyperogen-nitric oxide system are presented. The sensitivity of flame speed to the rate constants of various reactions is examined. Reactions of the extended Zeldovich mechanism H + NO = N + OH and N + NO = O + N{sub 2} are the major NO removals reactions at high temperatures. Studies show that the flame speed is extremely sensitive to the rate constant of the reaction H + NO = N + OH. The reactions involving HNO are found to be important in H{sub 2}-NO kinetics, the most sensitive reaction being the HNO decomposition reaction. Reactions involving N{sub 2}O make insignificant change in flame speed (less than 0.5%) at all conditions and can be deleted from the reaction set. A mechanism involving ten species (O{sub 2}, O, H{sub 2}, H OH, H{sub 2}O, N{sub 2}, N, NO, HNO) and ten reversible reactions established here predicts flame speeds of H{sub 2}-NO system at various conditions of equivalence ratio, initial temperature, and pressure. Results are in good agreement with the experimental results of Magnus, Chinatapalli, and Vanpee.

• OSTI ID: 5569454
• Journal Information: Combustion and Flame; (United States), Journal Name: Combustion and Flame; (United States) Vol. 88:1; ISSN CBFMA; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ADIABATIC PROCESSES
CHALCOGENIDES
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
FLAME PROPAGATION
FLAMES
FLUID FLOW
HYDROGEN
HYDROGEN COMPOUNDS
LAMINAR FLOW
MIXING
NITRIC OXIDE
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
ONE-DIMENSIONAL CALCULATIONS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
REMOVAL
SENSITIVITY
VELOCITY