摘要
介绍了统计中的逐步回归反演算法,阐述了将其应用于燃煤发热量与燃煤化学元素分析的简单回归关系。利用MATLAB对新疆伊犁地区煤炭的发热量进行逐步回归计算分析,得到燃煤的高位发热量之间存在显著的回归关系;将得到的回归公式进行了验证,结果满足实际要求。因此,可利用灰分和水分及氢的含量来预测新疆伊犁地区煤炭的发热量。
The method of stepwise regression was introduced in this paper.The relation between calorific value and ultimate analysis of coal was studied through this method.The calorific value of coal in Yili region of Xinjiang was calculated through stepwise regression based on MATLAB.The regression equation of gross calorific value of coal was obtained.The equation was verified and could meet the practical requirements.Therefore,the calorific value of coal in Yili region of Xinjiang could be forecast by ash and moisture of coal.
出处
《煤质技术》
2011年第4期1-5,共5页
Coal Quality Technology
关键词
煤
发热量
逐步回归法
coal
calorific value
stepwise regression
