TY - JOUR A1 - Holländer, Lars A1 - Grunewald, Thomas A1 - Grätz, Rainer T1 - Influence of material properties of stainless steel on the ignition probability of flammable gas mixtures due to mechanical impacts T2 - CEt Chemical Engineering Transactions N2 - Grazing impact experiments of various types of stainless steels were performed in explosive atmospheres of hydrogen, acetylene, ethylene or propane with air. Depending on the gas mixture, kinetic energy of the impact, and applied stainless steel, the dominant ignition sources are either separated particles or hot friction surfaces. An influence of chromium content on the ignition probability was not found, although an increase in chromium content results in a reduction of the oxidizability of separated particles. Additionally, the influence of the material properties thermal conductivity, specific heat, density and hardness on the ignition probability of the hydrogen–air mixture was investigated. With increasing thermal conductivity a decreasing rate of ignitions was observed. In contrast, an influence of the physical properties specific heat, density and hardness on the ignitability was not found. PB - AIDIC The Italian Association of Chemical Engineering T2 - 15th International Symposium on Loss Prevention and Safety Promotion in the Process Industries CY - Freiburg, Germany DA - 05.06.2016 KW - Explosion protection KW - Mechanical generated sparks KW - Ignition protection KW - Non-electrical equipment KW - Ignition hazard assessment PY - 2016 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/37456 AN - OPUS4-37456 SN - 2283-9216 SN - 1974-9791 VL - 48 SP - 307 EP - 312 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany