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Gasification and ignition of a condensed fuel by a hot stagnant gas. Final report Apr 73-Apr 76

Technical Report ·
OSTI ID:7100484
Asymptotic techniques based on the limit of high activation energy have been used to analyze the ignition process of a condensed fuel suddenly exposed to a hot stagnant gas. Several cases are studied differing in the location of the exothermic ignition reaction. In a first part, an analysis is presented of the gasification process when an equilibrium process or a rate process is considered to determine the gasification rate, and the use of these results to study ignition by a fast exothermic gas-phase reaction. In a second part an analysis is presented of ignition by a heterogeneous exothermic reaction including the convective effects of the gasification flow. In a third part an analysis is presented of ignition by a condensed phase reaction and the derivation of a closed form expression for the ignition time. In a fourth part an analysis is presented of the heterogeneous ignition process by convective heating described by a Newtonian law. Details of these analyses are given in previous Scientific Reports. (Author)
Research Organization:
Instituto Nacional de Tecnica Aerospacial, Madrid (Spain)
OSTI ID:
7100484
Report Number(s):
AD-A-037976
Country of Publication:
United States
Language:
English

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