Page 752 - Dust Explosions in the Process Industries

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Abdel-Gayed correlation, 364 procedures, 454
Accelerating rate calorimeter (ARC), 498 in United Kingdom, 447448
Active devices, explosion isolation, 78-8 1 Ballal’s theory, 284-287
Agglomeration BAM. See Bundesanstaltfur Materialprlifung
dispersion of, 232-234. 333 Biological self-heating,388
effects of, 32, 33, 34 Biot number, 397,402
formation by liquid additives, 113, 115 Blast effects. 98,99-101
ion generator and, 483 Blast waves generated by burning dust clouds,
Qfparticles, electrostatic, 203 583,586,609-610
Airflows Borghi diagram, 330
parallel, 221-229 Bradley and Mitcheson three-zone flame
upwards, 230-232 propagation theory, 297-298
Aluminum dust Brush discharges, 16, 17
choice of suppressantfor, 109 hybrid mixtures and, 53
computer model, 364 propagating, 16. 18-19,564,637
experiments with, 344, 357, 370,422 research on, 594, 617
explosions involving Bucket elevators
Anglesey 1983, 195-198 design, 612-613
Gullaug 1973, 192-195 location, 116
literature survey, 138-139 process industry and, 355,465
particle size, 30 risk in. 132, 134. 168
rotary locks and, 76 venting experiment in, 627
suppressing, 109 Building construction and layout, 116-118
Aluminum flake, risk reduction, 127 Bulk strength
Aluminum particles, ignition and combustion, measurement of, 208-212
251-253 theories, 206-208
Aluminum spheres, heat conductivity, 396 Bundesanstaltfur Materialpriifung,474
American Society for Testing and Materials (ASTM) furnace, 420,423,424,501-502,504,518
20 liter closed-bomb test apparatus, 310, 530, test method, 491492
533,646) Burning particles and ignition of dust clouds,
dispersibilitytest methods, 482 618
drop hammer tests, 514 Burning velocity, 266-267
flammability test, 492 coal dusts, 273-275,277,291,292-293
Hartmann bomb, 526,535 electric spark ignition and, 417
minimum explosive dust concentration explosible dust concentrations,307, 308, 312
determination,640 flame versus, 321
test methods standards, 637 laminar flame propagation in closed vessels
Anemometers,use of, 238,239, 338, 339,585, and, 294,296,297,299,300,301
599,603 laminar flames in dust clouds and, 597,598,599
Area classification magnesium dust clouds, 283
combustible dusts and,553-557 metal dusts, 270-272
Standards,574-575 organic materials, 277-280
“Atex 10Oa” Directive, 549, 550, 551-552, 554, particle size and, 290
565,566.567,574,635,636 turbulent dust flames and, 335, 339, 340, 345,
hornattic explosion suppression, 101-109. 346,363,366,601
630-633. See also Suppression systems, zero gravity theory and, 284. 286
automatic Bursting panels, 88-90

Eag filter experiments Capacitance-to-groundvalues, 17
dust deposits in steel works, 404 Capacitors, direct discharge of high voltage (HV),
in Norway, 448451 509-511