Radiative Augmented Combustion.
Abstract
Radiative Augmented Combustion has been identified as a potential technique for extending aircraft operating limits associated with combustion processes. This technique is based on the fact that radiation of selected wavelengths is capable of photodissociating stable molecules, combustion intermediates and other inhibiting species in the flame zone into reactive radicals. Subsequent reactions involving these reactive radicals lead to radiative ignition and combustion enhancement. This program emphasizes research on the interaction between radiation and combustion under flow conditions. Research is divided into two man subjects; ignition and enhancement. The objective of the experimental work is to demonstrate both ignition and enhancement in flow systems. For this purpose, two specially tailored apparatus were designed and fabricated; a plug flow combustor to conduct radiative ignition tests, and a 'pancake' burner to measure combustion enhancement in terms of increase in burning velocity. It is expected that experiments will demonstrate proof of concept by igniting combustible mixtures at conditions where thermal ignition is unreliable, and by increasing the flame speed. Since the role of photochemical reactions within the whole kinetic scheme is currently not completely understood, it is further expected that this research will identify the most effective photodissociative paths. This, in turn, will assist in determining the feasibility of the concept based on the availability of newly developed light sources and their compatibility with the harsh combustion environment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 10, 1984
- Accession Number
- ADA154137
Entities
People
- M. Lavid