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The role of surface generated radicals in catalytic combustion (Document No: 19850019557)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Royce, B. S. H. Santavicca, D. A. Stein, Y. |
| Copyright Year | 1985 |
| Description | Experiments were conducted to better understand the role of catalytic surface reactions in determining the ignition characteristics of practical catalytic combustors. Hydrocarbon concentrations, carbon monoxide and carbon dioxide concentrations, hydroxyl radical concentrations, and gas temperature were measured at the exit of a platinum coated, stacked plate, catalytic combustor during the ignition of lean propane-air mixtures. The substrate temperature profile was also measured during the ignition transient. Ignition was initiated by suddenly turning on the fuel and the time to reach steady state was of the order of 10 minutes. The gas phase reaction, showed no pronounced effect due to the catalytic surface reactions, except the absence of a hydroxyl radical overshoot. It is found that the transient ignition measurements are valuable in understanding the steady state performance characteristics. |
| File Size | 1363390 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850019557 |
| Archival Resource Key | ark:/13960/t0ps2nw9j |
| Language | English |
| Publisher Date | 1985-06-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Phase Transformations Surface Reactions Reaction Kinetics Chemical Reactions Catalytic Activity Combustion Chambers Combustion Efficiency Steady State Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
