A shock tube investigation of heat transfer from dissociated hydrogen to catalytic surfaces
Abstract
Shock tube experiments are described which compare the heat transfer rate to flat plate nickel and silicon dioxide surfaces from dissociated hydrogen/argon mixtures at temperatures from 2000 to 6000 K. The experimental conditions were chosen in order to permit the effects of surface recombination of hydrogen atoms on the heat-transfer rate to be explored. Comparison of the experiments with theoretical predictions based on existing laminar boundary layer methods are presented. The results may be interpreted to yield an experimental value for the catalytic efficiency of silicon dioxide surfaces to hydrogen atom recombination of 25 times 10 to the -4th.
- Publication:
-
International Journal of Heat and Mass Transfer
- Pub Date:
- April 1980
- Bibcode:
- 1980IJHMT..23..515N
- Keywords:
-
- Catalytic Activity;
- Gas Dissociation;
- Hydrogen Recombinations;
- Laminar Heat Transfer;
- Shock Tubes;
- Surface Reactions;
- Flat Plates;
- Heat Flux;
- Laminar Boundary Layer;
- Metal Surfaces;
- Nickel;
- Nonequilibrium Flow;
- Silicon Dioxide;
- Fluid Mechanics and Heat Transfer