1. Flashback Avoidance in Swirling Flow Burners
- Author
-
Syred Nicholas, Valera-Medina Agustín, Vigueras-Zúñiga Marco Osvaldo, and De la Rosa-Urbalejo Daniel
- Subjects
high speed photography ,Engineering ,flujos giratorios ,business.industry ,Nuclear engineering ,Flow (psychology) ,Pilot scale ,Ingeniería ,Fuel injection ,Combustion ,reflujo de llama ,Flashback Phenomenon ,Flashback ,TA ,Natural gas ,fotografía de rápida velocidad ,medicine ,Combustor ,flashback ,swirling flows ,medicine.symptom ,business ,Simulation - Abstract
Lean premixed combustion using swirling flows is widely used in gas tur\ud -\ud bines and combustion. Although flashback is not generally a problem with\ud natural gas combustion, there are some reports of flashback damage with\ud existing gas turbines, whilst hydrogen enriched fuel blends cause concerns\ud in this area. Thus, this paper describes a practical approach to study and\ud avoid flashback in a pilot scale 100\ud kW tangential swirl burner. The flash\ud -\ud back phenomenon is studied experimentally via the derivation of flashback\ud limits for a variety of different geometrical conditions. A high speed camera\ud is used to visualize the process and distinguish new patterns of avoidance.\ud The use of a central fuel injector is shown to give substantial benefits in terms\ud of flashback resistance. Conclusions are drawn as to mitigation technologie
- Published
- 2014