新型燃烧指标方程的建立

A New Combustion Index Equation

从热动力学积分方程出发建立了新型燃烧特征方程。新型燃烧特征方程与常规燃烧指标对应的基本方程为一般与特殊的关系;基本方程及其燃烧指标只能对燃烧达到最大速率之前的燃烧特性进行正确的判断,而用新型燃烧指标可以对整个阶段的燃烧特性进行正确的判断;典型煤种的热重实验得到的常规燃烧指标优劣次序与新型燃烧指标有所差别,新型燃烧特征方程更具有优越性。

Starting from the integral equation of thermal kinetics, a new characteristic equation of combustion is derived. The relationship between this equation and the basic equation, which is in accord with the conventional combustion index, corresponds to the relationship between general and special. The basic equation and its combustion index can only be used to correctly determine combustion cheracteristics before the combustion rate has reached its maximal value, while the new combustion index can be used to correctly adjudge characteristics in the whole combustion stage. The sequence in order of superiority or inferiority of conventional combustion indices of tppical coal catagories obtained by thermogravimetric tests differ somewhat from the sequence according to the new combustion index. The new combustion characteristic equation moreover has its own advantages.