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The experiments conducted in this study serve to evaluate the danger that occurs when optical radiation is employed in areas where there is danger of explosion. In a very detailed study of available literature, the question of the possible igniting mechanisms was discussed. The ignition of explodable steam/air and gas/air mixtures by way of optical radiation can, in the main, be triggered by three main causes: absorption of optical radiation; ignition of the explosable mixture; absorption of the radiation by solids. The last named point has the greatest significance for protection from explosions, and was systematically analysed in this study. The dangers of pulsed optical radiation in areas of danger of explosion were not researched in this study.

Additional information

Authors: WELZEL M M, Physikalisch-Technische Bundesanstalt, Braunschweig (DE)
Bibliographic Reference: Report: PTB-W-67 DE (1996) 150pp., FS
Availability: Available from Physikalisch Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig (DE)
ISBN: ISBN 3-89429-812-X
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