SAFEKINEX project - ukelg

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Can an explosion be avoided Explosion Indices Explosion sensitivity: Explosion severity: LEL, UEL (FL), LOC, MIE, AIT, CFT, MIT, MESG, LFP, UFP (flash points), ignition delay time (AIT), induction time (CFT) selfheating (smouldering) temp P max , (dP/dt) max , K st , K g , flame speed, burning velocity (laminar, turbulent), pressure pulse Both engineering and chemical factors play a role in these explosion indices
Effects of running conditions on explosion sensitivity indices Indices related to the explosion sensitivity Lower explosion lim it (LEL) Upper explosion limit (UEL) Lower flash point (LFP) Upper flash point (UFP) Minimum auto-ignition temperature (AIT) Minimum ignition energy (MIE) Maximum experimental safe gap (MESG) Limiting oxygen concentration (LOC) Effect of increased pressure Decreases slightly Effect of increased temperature Decreases Effect of increased turbulence Increases Increases Increases Decreases Increases not applicable Increases Increases not applicable Increases Decreases not applicable Increases Decreases Decreases Increases Decreases Decreases Decreases Decreases Decreases Increases
Page 1 and 2: SAFEKINEX project Delft University
Page 3: Accidents in process industry
Page 7 and 8: Effect of pressure, temperature, an
Page 9 and 10: Importance of reaction kinetic know
Page 11 and 12: General oxidation scheme with respe
Page 13: SAFEKINEX work overview C1-C3 C4-C1

SAFEKINEX project - ukelg

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