Title

A parametric study of NO2 emission from turbulent H2 and CH4 jet diffusion flames

Abstract

Nitrogen dioxide (NO2) emission levels of fuel jets were experimentally studied for H2, H2/He mixtures, a H2/He/CH4 mixture, and CH4. The study was undertaken to understand the dependence of NO2 emission in turbulent diffusion flames on parameters other than the widely known effects of rapid mixing. These parameters are fuel types (CH4 vs H2), the initial NO level, and the flame temperature. The fuel mixtures were chosen such that these factors could be investigated independently. In all the flames studied, NO2/NO(x) increases with decreasing NO concentration in the flame and with decreasing adiabatic flame temperature. The CH4 fuel demonstrates a qualitatively different influence on the NO2/NO(x) ratio than H2. Its effects are most pronounced when the flame blowout limit is approached. Adding a small amount of CH4 to the H2 flames also qualitatively affected the NO2/NO(x) ratio.

Publication Date

1-1-1998

Publication Title

Combustion and Flame

Volume

112

Issue

1-2

Number of Pages

188-198

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0010-2180(97)81767-1

Socpus ID

0030835019 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0030835019

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