Fruehwarnsystem zur Erkennung Gefaehrlich Exothermer Reaktionen in der Chemie

  • F. Casadei
Conference paper
Part of the Fachberichte Messen · Steuern · Regeln book series (FACHBERICHTE, volume 1)

Early Warning System for Dangerous Exothermic Reactions in the Chemical Industries


First results of an apparatus capable to recognize dangerous exothermic reactions in the chemical industries are presented. The detection principle consists of calculating the first and the second derivatives of two measured temperature functions and comparing them to two fixed discrimination levels, near zero. Exceeding these levels indicates a potentially dangerous situation.

The apparatus is build around a microcomputersystem, with its programm stored in 2.5 k byte of ROM. The method is applicable to different vessel sizes without the necessity to readjust any parameters.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Hub, L.: Entwicklung von Prüfmethoden zur Erhöhung der Sicherheit bei der Durchführung chemischer Prozesse, Diss. ETH? NF 5577, 1975 Zürich.Google Scholar
  2. 2.
    Temes, G.C.: Modern filter theorie and design, Wiley 1973. Kap. 12: R.M. Golden, Digital Filters.Google Scholar
  3. 3.
    Kuo, B.C.: Analysis and synthesis of sampled-data control systems, Prentice Hall, Englewood Cliffs, N.J. 1963.Google Scholar
  4. 4.
    Kaiser, J.F.: Digital Filters, in Kuo F.F.: System analysis by digital computer, Wiley, New York 1966.Google Scholar

Copyright information

© Springer-Verlag Berlin · Heidelberg 1977

Authors and Affiliations

  • F. Casadei
    • 1
  1. 1.Sandoz AGBaselSwitzerland

Personalised recommendations