Combustion Science and Technology

KUMAR, R. K.; KOROLL, G. W.; DEWIT, W. A.; HALLIN, E. L.; SKOPIK, D. M.; CAPLAN, H. S.

doi: 10.1080/00102209208951828pmid: N/A

Abstract An experimental and theoretical study of hot-surface ignition in an intense radiation field is described. A transient, one-dimensional model has been constructed to study the effects of ionizing radiation on the ignition of hydrogen-oxygen-diluent mixtures at a hot surface. The model predicts that the minimum surface temperature required for ignition should decrease as the absorbed radiation dose rate increases. The predicted decrease is small for radiation fields (≃107Gy/h) relevant to nucler reactors Experiments performed in the presence of incident y-fields of about 5 x l06Gy/h showed no measurable change in the surface temperature required for ignition.