Ignitability of Jet A1 Oxygen Co-axial Diffusion Flames Diluted with Inert Gases

Author:

Ryu Myung-Ho,Park Seul-Hyun

Abstract

In this study, the ignitability characteristics affected by an oxygen coaxial flow diluted with inert gases (nitrogen and helium) were experimentally investigated using Jet A1 oxygen diffusion flame configurations. As the molar concentration of oxygen supplied to the coaxial flow increased, the dilution of the inert gas decreased, which drastically lowered the measured minimum ignition energy. When only oxygen gas was supplied to the coaxial flow without dilution with the inert gas, ignition was most easily observed, thereby widening the ignition range. With a constant oxygen-inert co-flow rate, the ignition suppressibility under helium dilution was superior to that under nitrogen dilution as the molar concentration of oxygen decreased.

Funder

Ministry of Trade, Industry and Energy

Korea Energy Technology Evaluation and Planning

Ministry of Science and ICT

National Research Foundation of Korea

Publisher

Korea Institute of Fire Science and Engineering

Subject

General Medicine

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