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利用绝热边界条件模拟了无限大平板的导热,提出了基于多点测温的自热反应动力学分析方法(多点法).该方法认为在一维导热下,在系统内某一点的导热方向发生变化的临界时刻,通过该点的导热项为零,此时可以采用类似CPT方法求解得出动力学参数.导热方向发生临界变化的时刻可以通过计算等间距的多点温度的相关系数来确定.与CPT方法和HR方法仅关注中心点温度不同,多点法关注多个测温点的数据,一次实验可以得出多组数据.通过堆积烟草样品的实验将新方法与以上两种方法进行了对比分析,结果证明了新方法的优越性和可靠性.
The adiabatic boundary conditions are used to simulate the thermal conduction of an infinite plate, and a multi-point method based on multi-point temperature measurement is proposed (multi-point method). This method considers that the thermal conduction at a certain point in the system under one- At the critical moment of change, the thermal conduction through this point is zero, at which point the kinetic parameters can be solved by CPT method, and the critical moment of thermal conduction can be determined by calculating the correlation coefficient of multi-point temperature at equal intervals. Compared with the CPT method and the HR method, which only focus on the temperature of the center point, the multi-point method focuses on the data of multiple temperature measurement points, and multiple sets of data can be obtained in one experiment. The new method and the above two methods are carried out by stacking tobacco samples Comparative analysis, the results demonstrate the superiority and reliability of the new method.