| Zugriffsnummer | 17546 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Autoignition temperatures for mixtures of flammable liquids with air at elevated pressures |
| Autor(in); Institution |
Brandes, Elisabeth; 3.4, Grundlagen des Explosionsschutzes, PTB-Braunschweig
Hirsch, Werner; 3.4, Grundlagen des Explosionsschutzes, PTB-Braunschweig
Stolz, Thomas; 3.4, Grundlagen des Explosionsschutzes, PTB-Braunschweig
|
| Quelle/Jahr | Proceedings of the European Combustion Meeting, ECM 2005, Louvain-la-Neuve, Belgium, April 3 - 6, 2005:(2005), 5 S. |
| Availability | [CD-ROM] ; file name: 218_Hirsch.pdf |
| Herausgeber(in) |
Dias, Véronique
|
| Verlag | Louvain-la-Neuve: CSTR-UCL |
| Konferenzangaben | ECM 2005, Louvain-la-Neuve, 3-6, April, 2005, Belgium |
| Freie Schlagworte | explosion prevention ; autoignition temperatures ; upper explosion limit ; pressure dependence ; elevated pressures |
| Zusammenfassung | The autoignition temperature (AIT) of pure compounds has been measured at pressures between 2 bar and 15 bar in a 0.5 l autoclave. The AITs are found to decrease substantially with increasing pressure, following a Semenoff relation allowing extrapolation of the AIT to higher pressures. The ignition delay times follow an Arrhenius-like relation and may become very long at higher pressures. For some compounds both the AITs and the delay times, the 1 bar values found with the standard apparatus do not fit well to the respective relation, pointing to a profound influence of the experimental differences. Although very high fuel concentrations are required to find the minimum AIT, they remain within the explosion range as the Upper Explosion Limit is shown to shift dramatically to higher values with increasing temperature and pressure. |
