O2／CO2气氛下煤粉颗粒着火温度的实验研究.pdf

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JOURNAL OF ENGINEERING THERMOPHYSICS May, 2013
2013
O2/CO2

(
200240)


O2 NO

Æ

O2/CO2 21%O2 /79%CO2
◦

∼

(21%O2/79%N2) 62 130 C O2 /CO2

∼

O2 /CO2 26% 44%



O2 /CO2


:TK16 :A : 0253–231X(2013)05–0981–04
Experimental Investigation on the Ignition Temperature of
Pulverized Coal Particles in O2/CO2 Environments
ZHOU Yue-Gui JIN Xu-Dong CHU Wei GU Guang-Jin XU Yang-Yang
(Institute of Thermal Energy Eng., School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)
Abstract The ignition behavior of pulverized coal particles was determined by the measurement
of O2 and NO concentration evolution through the flue gas analyzer at different wall temperatures
of drop tube furnace, and the ignition temperatures of pulverized coal particles at different O2/CO2
environments and air environment were measured as the minimum gas temperatures at the critical
ignition condition. The results show that the ignition temperature of pulverized coal particles
◦◦
at 21%O2/79%CO2 environment is higher from 62 C to 130 C than that