Accession Number : ADA138214

Title :   Surface Ignition and Heterogeneous Catalysis of Hydrocarbon Fuels.

Descriptive Note : Final rept. 15 Jul 80-15 Oct 83,


Personal Author(s) : Masel,R. I. ; Buckius,R. O.

Report Date : 25 OCT 1983

Pagination or Media Count : 50

Abstract : This work shows theoredically and experimentally that catalytic combustion is a viable concept at time scales characteristics of those in an engine. A transient code has been developed for hydrogen and carbon monoxide code over a flat plate. Results show that ignition can occur in a time as short as .0001 sec at reasonable temperatures. General operating regions for ignition as a function of the fundamental variables are developed. Radiation heat transfer was also found to be important. Experiments were done for hydrogen combustion over a flat plate were completed which verify the trends seen above. In addition several unexpected phenomenon were observed including self sustained oscillations and isothermal multiplicity and modeled. A detailed kinetic model for formaldehyde combustion has been developed. The main conclusion from the above studies is that catalytic combustion is a complicated process, but it's a viable concept under time scales characteristics of those in an engine. (Author)

Descriptors :   *Combustion, *Fuels, Surface reactions, Ignition, Catalysis, Heterogeneity, Hydrogen, Carbon monoxide, Plates, Time, Heat transfer, Formaldehyde, Oxidation, Kinetics, Models, Gas turbines

Subject Categories : Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE