A Ternary Flame System for Soot Oxidation Studies

Abstract

A ternary flame system is presented that allows observations of soot oxidation in a hydrogen diffusion flame in the absence of hydrocarbons. A propylene/air laminar jet diffusion flame emits a soot column with a diameter of 3 mm that passes through a ring burner supporting a hydrogen diffusion flame. The soot oxidizes in a region that is 60 mm long, laminar, steady, axisymmetric, and accessible for optical and sampling diagnostics. Temperatures and soot loading can be controlled nearly independently in this region and a broad range of mixture fraction is encountered without interference from soot formation.

Keywords:

• Hydrogen
• Laminar diffusion flame
• Ring burner

ORCID

Peter B. Sunderland

http://orcid.org/0000-0002-8262-7100

Additional information

Funding

This work was supported by the National Science Foundation (NSF) under grant CBET0954441.