Accession Number:

ADA386379

Title:

Fire Extinguishment by Electro-Magnetic Fields. Phase II

Descriptive Note:

Final rept. Jul 1997-Jul 2000

Corporate Author:

SCHNEIDER LABS LTD ALACHUA FL

Report Date:

2000-07-01

Pagination or Media Count:

132.0

Abstract:

This report describes a Phase II effort that demonstrated the technological feasibility to extinguish fires using an electromagnetic EM pulse. Using this technology only electrical energy is used for the fire extinguishment process no water or chemicals are required. The experimental device employed 10 energy storage capacitors of 40 microfarads total and operated at 15 kV. With this device heptane, diesel and kerosene pool fires, as well as forced-flow flames of propane and butane were extinguished.. The facility can be used to study extiguishment of already ongoing fires as well as to study explosion mitigation. In addition a specialized version for the latter application was designed, built and tested 0.5 microfarads at 35 kV. There are some fire extinguishment methods which employ electrostatic fields. In contrast to these methods, the present device employs an electromagnetic EM pulse. The duration of this EM pulse is only several microseconds. Pulse rise times of less than 100 nanoseconds have been achieved. The present process is the only practical process known to date for extinguishment of fires without a chemical agent. It is also the only process known at present that is fast enough to be considered for use in explosion mitigation applications.

Subject Categories:

  • Safety Engineering
  • Electromagnetic Pulses

Distribution Statement:

APPROVED FOR PUBLIC RELEASE