DETERMINATION OF CHARACTERISTIC TEMPERATURES IN COAL COMBUSTION REACTION BY TG-DTA METHOD
In this paper, general definitions of coal combustion reaction characteristic temperatures were described, characteristics and application status of traditional methods used to confirm coal combustion reaction characteristic temperatures were analyzed and summarized, and a new method which was used to confirm combustion reaction characteristic temperatures according to comprehensively utilizing TG-DTA curve was brought forward. One kind of bituminous and two kinds of lean coals were chosen to do experiment on Thermal balance and this method was certificated. By analyzing and comparing with other methods, it was found that two phases of coal combustion process could be represented obviously by TG-DTA method, and mechanism equation and reaction kinetic parameters in each phase could be calculated accurately. Meanwhile, this TG-DTA method was easier for computer calculation and results were steadier and more accurate.
coal combustion TG DTA initial temperature final temperature
Peisheng LI Jie LI Yi HU Wan YU Yanan YUE Zhentao Jing Niansu HU Jun YANG Guolu YANG
College of Power & Mechanical Engineering, Wuhan University, Wuhan 430072, P.R.China School of Water Dept.of Safety Supervision, Tech.& Envi.,China Huaneng Group,Beijing,100082,P.R.China School of Water Resources& Hydropower, Wuhan University, Wuhan 430072, P.R.China Sewage Sludge and S
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
93-97
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）