Experimental investigation for effects of pulverized-coal fineness on combustion characteristics

被引：0

作者：

Yan, Xiaozhong ^{[1
]}

Wang, Xuwei ^{[1
]}

Chen, Donglin ^{[1
]}

Liu, Liang ^{[1
]}

机构：

[1] Changsha Univ Sci & Technol, Sch Energy & Power Engn, Changsha 410076, Peoples R China

来源：

CHALLENGES OF POWER ENGINEERING AND ENVIRONMENT, VOLS 1 AND 2 | 2007年

关键词：

experimental investigation; combustion characteristics; thermogravimetry; pulverized coal;

D O I：

10.1007/978-3-540-76694-0_27

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

For LengShuiJiang and DouLiShan coal samples with different finenesses, the ignition characteristic, combustion efficiency and dynamic parameters were analyzed by thermogravimetry. A comprehensive judging index Hj, which is used to describe the combustion characteristics, is presented and compared. The experimental results show that under the same conditions such as heating-up rate and reaction environment, the released quantity of volatile matter and DTG peak value increases and, the activation energy and ignition temperature decreases when coal particle size decreases, and thus the maximum combustion rate and ignition occurs early. Above all, the ignition and combustion characteristics can be improved along with decrease of coal particle size.

引用

页码：148 / 152

页数：5