Experimental Study on Flame Behavior and NOx Emission in Counter-Swirl Injector for Gas-turbine Engine
Year: 2025
Type: article
Abstract: A study was conducted on flame behavior and NO x emission characteristics in co-axial counter-swirl injector for gas turbine engine under various inner swirl levels and quarl angles.The study was carried out with a fixed total heat release rate of 5 kW, using global equivalence ratio, hydrogen co-firing ratio, quarl angle, and inner swirl number as key parameters.Five distinct flame shapes were identified based on the global equivalence ratio and hydrogen co-firing ratio.It was observed that the inner swirl number and quarl angle influence the mixing performance between the premixed methane-oxidizer flow through the outer nozzle and the hydrogen flow from the inner nozzle, as well as the recirculation zone, leading to variations in flame behavior and NO x emissions.초 록 동축 역선회 인젝터에서 다양한 내부 선회강도와 Quarl 각도에 따른 화염거동과 NO x 배출특성에 관한 연구 가 수행되었다.총 열 발생률이 5 kW로 고정된 상태에서 글로벌 당량비, 수소 혼소율,
Authors: Junpyo Hong, Keeman Lee
Institution: Sunchon National University
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415978723