Pressure venting of dust explosions in large vessels


  • W. Bartknecht

    1. Ciba-Geigy Ltd., Central Safety Service, Explosion Technology, Basel, Switzerland
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    • W. Bartknecht has been the Director of Explosion Research in the Central Safety Service of CIBA-GEIGY Ltd., Basel, Switzerland, since 1972. He is engaged in extensive research on the explosion behavior of dusts, vapors and gases, the development and testing of design criteria and of explosion protection devices for plant and equipment in the chemical industry.

      He has studied engineering and physics at the technical University of Berlin, from 1945-1952. He then worked on problems of explosion hazards and explosion protection in mines, with a German mining research institute, and earned a doctor's degree with a thesis in the same field.


The validity of the dust explosion venting nomograph D in NFPA 68 was examined in tests with vessels having volumes from 2.4 to 250 cubic meters and with dusts of classes St 1 and St 2.