TY - CONF A1 - Fomine, Pavel A1 - Mitropetros, Constantinos A1 - Hieronymus, Hartmut ED - Noskov, A. S. T1 - Some Safety Aspects of a Bubbly Medium Inside Chemical Reactor T2 - Proceedings of the XVI International Conference on Chemical Reactors (Chemical engineering journal 107.2005,1/3 : Special issue) T2 - 16th International Conference on Chemical Reactors ; 16th CHEMREACTOR CY - Berlin, Germany DA - 2003-12-01 PY - 2003 VL - 107 IS - 1-3 SP - 188 EP - 191 PB - Elsevier CY - Amsterdam AN - OPUS4-2816 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mitropetros, Constantinos A1 - Hieronymus, Hartmut A1 - Steinbach, J. A1 - Plewinsky, B. T1 - Shock induced ignitions of oxygen bubbles in cyclohexane under normal conditions JF - Archivum combustionis KW - Cyclohexane KW - Oxygen bubbles KW - Bubbly media KW - Organic solvent KW - Shock wave impact KW - Bubble explosion KW - Explosion hazard KW - Shock induced explosion KW - Bubble dynamics PY - 2002 SN - 0208-4198 VL - 22 IS - 1-2 SP - 55 EP - 70 PB - Wydawn. Naukowe PWN CY - Warszawa AN - OPUS4-2430 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mitropetros, Constantinos A1 - Fomine, Pavel T1 - Investigations of bubble explosions in organic solvents T2 - 2nd Mediterranean Combustion Symposium T2 - 2nd Mediterranean Combustion Symposium CY - Sharm el-Sheikh, Egypt DA - 2002-01-06 PY - 2002 AN - OPUS4-3174 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mitropetros, Constantinos A1 - Fomine, Pavel A1 - Steinbach, J. A1 - Plewinsky, Bodo A1 - Hieronymus, Hartmut T1 - Explosions of oxygen bubbles in cyclohexane JF - The chemical engineering journal KW - Cyclohexane KW - Oxygen bubbles KW - Bubbly media KW - Organic solvent KW - Shock wave ignition KW - Bubble ignition KW - Explosion KW - Explosion hazard PY - 2004 SN - 1385-8947 VL - 97 SP - 151 EP - 160 PB - Elsevier CY - Amsterdam AN - OPUS4-3222 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mitropetros, Constantinos T1 - Explosion behavior of bubbles in cyclohexane T2 - Vortrag in Rahmen des sicherheitstechnischen Seminars am Institut für Prozess. und Anlagetechnik der TU-Berlin T2 - Vortrag in Rahmen des sicherheitstechnischen Seminars am Institut für Prozess. und Anlagetechnik der TU-Berlin CY - Berlin, Germany DA - 2003-06-18 PY - 2003 AN - OPUS4-3941 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Mitropetros, Constantinos A1 - Fomin, P. A. A1 - Hieronymus, Hartmut A1 - Steinbach, J. T1 - Modelling of detonation wave parameters, initiation and hazard of chemically active bubble systems JF - Journal de physique 4 N2 - The detonation processes in chemically active bubble systems at high initial pressures are calculated numerically. The dependences of detonation wave velocity at sub- and supersonic regimes of propagation on molar fraction of gas in the mixture and on initial pressure have been calculated for the first time. The Chapman-Jouguet condition for supersonic bubble detonation wave is obtained. The principal possibility for a different detonation wave structure in the case of propagation in the mixture with high initial pressure and longitudinal gradient of bubble volume fraction is predicted. The dynamics and ignition of a chemically active bubble in a field of external pressure is analyzed. It is shown, that an inert diluent addition can increase the explosion hazard of heterogeneous gas - liquid systems. Calculations demonstrate the possibility of chemically active bubble ignition on the second pulsation. It is shown, that single chemically active bubble ignition is possible also owing to a decompression impulse. An algorithm for the calculation of thermodynamic parameters of chemically equilibrium hydrocarbon gas with soot particles has been suggested. It is shown, that soot formation can have an essential influence on the dynamics of single bubble in chemically active hydrocarbon-oxygen (organic solvent (liquid) - oxidizer (gas)) heterogeneous systems. T2 - 4th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions ; 4th ISHPMIE ; 10th International Colloquium on Dust Explosions ; 5th Colloquium on Gas, Vapor, Liquid, Hybrid Explosions CY - Bourges, France DA - 2002-10-21 PY - 2002 DO - https://doi.org/10.1051/jp4:20020309 SN - 1155-4339 VL - 12 IS - 7 SP - 403 EP - 412 PB - EDP Sciences CY - Les Ulis AN - OPUS4-1640 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Fomine, Pavel A1 - Mitropetros, Constantinos A1 - Hieronymus, Hartmut ED - Roy, G. D. T1 - Bubble ignition in chemically active heterogeneous systems T2 - Advances in confined detonations T2 - International Colloquium on Advances in Confined Detonations CY - Moscow, Russia DA - 2002-07-02 PY - 2002 SN - 5-945880-08-6 SP - 167 EP - 170 PB - Torus Press CY - Moskva AN - OPUS4-1974 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Fomine, Pavel A1 - Mitropetros, Constantinos A1 - Hieronymus, Hartmut T1 - Modeling of detonation processes in chemically active bubble systems at normal and elevated initial pressures JF - Journal of loss prevention in the process industries N2 - The detonation processes in chemically active bubble liquids under elevated initial pressures are investigated theoretically. It is shown, that supersonic regimes of wave propagation can exist, if the initial pressure is relatively high and the volume fraction of the bubbles is relatively small. Characteristic values of the bubble detonation wave pressure at sub- and supersonic regimes differ by an order of magnitude. The principal possibility of detonation wave structure transformation in the case of propagation in the mixture with high initial pressure and longitudinal gradient of bubble volume fraction is predicted. The leading shock may transform into a smooth wave of compression. The Chapman-Jouguet conditions for self-sustaining supersonic bubble detonation wave is obtained. A model of shock induced single bubble dynamics and ignition taking into account the real properties of the liquid, inter-phase transition processes, mechanical mixing of phases, ignition delay and continuous shift of chemical equilibrium have been described. Calculations for the oxygen containing bubble in liquid cyclohexane have been performed. KW - Bubble detonation KW - Bubble dynamics KW - Inter-phase exchange KW - Explosion hazard KW - Safety PY - 2003 DO - https://doi.org/10.1016/S0950-4230(03)00018-4 SN - 0950-4230 SN - 1873-3352 VL - 16 SP - 323 EP - 331 PB - Butterworth CY - Guildford, Surrey AN - OPUS4-2579 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mitropetros, Constantinos A1 - Fomine, Pavel A1 - Seeger, Hansjörg A1 - Bender, Josef A1 - Seifert, Stefan A1 - Hieronymus, Hartmut A1 - Steinbach, J. A1 - Plewinsky, B. T1 - Cavitation after shock wave propagation inside a chemically active organic bubbly liquid T2 - Plasma Physics and Short Time-Scale Physics Spring Meeting, RWTH Aachen T2 - Plasma Physics and Short Time-Scale Physics Spring Meeting, RWTH Aachen CY - Aachen, Germany DA - 2003-03-24 PY - 2003 AN - OPUS4-3096 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Mitropetros, Constantinos A1 - Fomine, Pavel A1 - Seeger, Hansjörg A1 - Bender, Josef A1 - Seifert, Stefan A1 - Hieronymus, Hartmut A1 - Steinbach, J. A1 - Plewinsky, B. T1 - Shock Induced Bubble Explosion in a Monodispersed Organic Liquid T2 - Plasma Physics and Short Time-Scale Physics Spring Meeting T2 - Plasma Physics and Short Time-Scale Physics Spring Meeting CY - Aachen, Germany DA - 2003-03-24 PY - 2003 AN - OPUS4-3079 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -