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Electric Ignition of Lycopodium Powder in a Modified Hartmann Apparatus.

Authors
Kubala-TA; Perzak-FJ; Litchfield-EL
Source
MISSING :9 pages
Link
NIOSHTIC No.
10002215
Abstract
Electric discharge ignition has been reinvestigated in a modified hartmann apparatus for lycopodium powder with air. Minimum stored energy to ignite aid dispersions of lycopodium was 25 to 30 mj; ignition occurred with 1 gram of lycopodium dispersed into the 2.7- Liter vessel. Ignition energy was measured as a function of the weight of powder used, although some reservations are expressed concerning the uniformity of the lycopodium-air mixtures. In particular, wall layers of lycopodium, remaining after dispersal of 1 gram of lycopodium, were as easily ignitable as the most easily ignited air dispersion. Thus, an unanswered question has arisen concerning the role of surface coatings in the flammability of all marginally ignitable mixtures.
Publication Date
19810101
Document Type
IH; Report of Investigations
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
RI 8600
NIOSH Division
PRC;
Source Name
MISSING
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