| Zugriffsnummer | 31346 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Numerical investigation of ignition events initiated by a hot turbulent jet using a PDF method |
| Autor(in); Institution |
Ghorbani, Asghar; 3.5, Explosionsschutz in der Energietechnik, PTB-Braunschweig
Markus, Detlev; 3.5, Explosionsschutz in der Energietechnik, PTB-Braunschweig
Steinhilber, G.; Karlsruher Institute of Technology (KIT), Karlsruhe, GERMANY
Maas, U.; Karlsruher Institute of Technology (KIT), Karlsruhe, GERMANY
|
| Quelle/Jahr | Poceedings of the tenth International Symposium of Hazards, Prevention, and Mitigation of Industrial Explosions:(2014), 157 - 164 |
| Herausgeber(in) |
Skjold, Trygve
Eckhoff, Rolf K.
Wingerden, Kees van
|
| ISBN | 978-82-999683-0-0 |
| Verlag | Bergen: GexCon AS |
| Konferenzangaben | 10th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions ; ISHPMIE, Bergen, 10-14, June, 2014, Norway |
| Freie Schlagworte | Transient jet ; ignition ; PDF method ; flameproof enclosure ; explosion protection |
| Zusammenfassung | The ignition of a combustible environment by hot jets is a safety concern in many industries. In explosion protection concepts, for a protection of the type “flameproof enclosures” a maximum permissible gap is of major importance. In this work a numerical framework is described to investigate the ignition processes by a hot turbulent jet which flows out from such gaps. A Probability Density Function (PDF) method in conjunction with a reaction-diffusion manifold (REDIM) technique is used to model the turbulent reactive flow. In this paper the ignition of a stoichiometric mixture of hydrogen/air gas by a hot exhaust turbulent jet is examined. The impact of the nozzle diameter on the ignition delay time is investigated, too. The method is used to explore the maximum nozzle diameter for specific boundary conditions for which there is no ignition. |
Zitierung
Ghorbani, A., Markus, D., Steinhilber, G., & Maas, U. (2014). Numerical investigation of ignition events initiated by a hot turbulent jet using a PDF method. 10th International Symposium on Hazards, Prevention, and Mitigation of Industrial Explosions ; ISHPMIE, Bergen, 10-14, June, 2014, Norway.