摘要
本文对粉煤绝热完全燃烧过程的(火用)损失随空气消耗系数、空气预热温度、富氧程度的变化进行了计算与分析.结果表明:空气消耗系数每降低0.1燃烧(火用)损失率减少1.4～1.6%,空气预热温度每升高100℃燃烧(火用)损失率减少2～3%,而富氧燃烧使燃烧损失率降低较不明显.
In this paper,when air to fuel ratio,air preheat temperature and air oxygen-enriched efficiency are changed,the lost exergy in adibatic combustion of pulverized coal is calculated and analysed.The com- bustion lost exergy efficiency decreases 1.4～1.6% whenever air to fuel ratio is lowered by 0.1,and it de- creases 2～3% whenever air preheat temperature is raised by 100℃.When oxygen-enriched combustion is used,the combustion lost exergy decreases less obviously.
关键词
粉煤
绝热燃烧
YONG损失
空气预热
Pulverized Coal
Adibiatic Combustion
Lost Exergy
Air Preheat
