Open AccessStudy on combustion and nitrogen oxide emissions of gas boiler
Author(s) -
Yanyan Ji,
Songsong Zhang,
Kejian Wang,
Guoli Qi
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/721/1/012054
Subject(s) - flue gas , flue gas emissions from fossil fuel combustion , combustion , nitrogen , boiler (water heating) , nitrogen oxide , nox , nitrogen oxides , waste management , natural gas , chemistry , environmental science , flue , environmental chemistry , engineering , organic chemistry
In order to reduce the emission of nitrogen oxides in gas-fired boilers, the effects of excess air ratio and flue gas recirculation on nitrogen oxide emissions during natural gas combustion are studied by numerical calculation. By adding flue gas recirculation, the generation of nitrogen oxides is significantly reduced. When the flue gas recycling rate is 20%, the emission of nitrogen oxides is minimized to about 40 mg/m 3 .