电厂用煤元素组成与发热量的数值关系研究  

Research on Numerical Relationship between Elemental Composition and Calorific Value of Power Plant Coal

作　　者：李莉 

机构地区：[1]国网山东省电力公司电力科学研究院,山东济南250002

出　　处：《山东电力技术》2014年第1期57-62,共6页Shandong Electric Power

摘　　要：在2009—2012年期间对山东省内众多燃煤电厂1 898个煤质研究样本进行了元素分析和发热量测定,得出了碳、氢、氮、氧、硫等元素组成的分布情况,通过SPSS分析了各指标与发热量的相关性,在此基础上应用逐步回归分析方法进一步研究,得出了煤质的元素组成与发热量的内部数值规律,从而找出了一种简便易行的煤质发热量估算方法。During 2009-2012,elemental composition analysis and calorific value determination of 1898 coal samples were car ried out in this study,which were collected from many coal-fired power plants in Shandong area. Statistical distributions of such indexes as carbon, hydrogen, nitrogen, oxygen, sulfur were described respectively. On the basis of correlation tests between the indexes and calorific value of the coal samples by means of SPSS, stepwise regression analysis was also carried out, so valuable calculation rules were acquired and that could be used as simple and feasible coal calorific value prediction methods for coal- fired power plants.

关 键 词：元素分析 发热量 相关性 逐步回归分析 

分 类 号：TK113[动力工程及工程热物理—热能工程]