Improvement of IDF Burner Effects on Lean Non-Premixed Synthetic Thai Natural Gas Flames

10th International Conference on Combustion, Incineration/Pyrolysis, Emission and Climate Change

生态环境科学

Kaewpradap, A.^1 ; Jugjai, S.^1

Combustion and Energy Research Laboratory (CERL), Department of Mechanical Engineering, King Mongkut's University of Technology, Thonburi, Thailand^1

关键词: Combustion characteristics;    Equivalence ratios;    Flame temperatures;    Inverse diffusion flame;    Maximum temperature;    Natural gas flames;    Premixed combustion flames;    Synthetic natural gas;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/265/1/012002/pdf
DOI  :  10.1088/1755-1315/265/1/012002

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The combustion characteristics of lean non-premixed Thai synthetic natural gas on improved inverse diffusion flame (IDF) burner were investigated. Air and fuel nozzles were improved from normal diffusion flame burner (NDF) and set as inside and outside exits on burner, respectively. The combustion flames were studied with variations of fuel and air velocity. The luminous flame length was lower and premixed flame length was higher by designed IDF burner due to enhance of mixing between inside air and ambient air. When the equivalence ratio decreased, lower flame length and flame temperature were obtained. Moreover, the highest premixed combustion flames and the maximum temperature were observed equivalence ratio between Φ = 0.76-0.80 on lean non-premixed synthetic Thai natural gas flames with designed IDF burner.