A novel method for analyzing the heating of coal particles in a coal powder-laden jet in the near-burner region is proposed. This method takes into accout both the delay due to coal paricle unsteady heating and the induction period needed for the coal particle to ignite from the practical engineering point of view. A review of the flow and heating of coal partcles is preseted. The principle and analysis procedures for estimating the ignition heat and the heat balance are oulined. The advantage of the propsed method over the previous analyzing method which is based on the steady-state heat balance is also discussed. The influncing trends of various factors on the results are calculated and drawn in a group of diagrans. The calculating procedure is demonstrated by using an industrial swirl burner as data source. The predicted hot gases recirculating ratio is in geeral agreenent with the measurements on the physical model. This study offers a useful reference in engineering practice for improving burnher design and performance.

电站锅炉煤粉燃烧过程中，煤粉着火前期的升温速率可达104K/s。而且煤粉在着火前期的升温状态直接影响到煤粉挥发份的释放速度和挥发份成分，进而影响到煤粉颗粒的着火和燃烧。该文针对开煤颗粒快速升温过程中非傅立叶导热效应，利用热波模型D-P-L模型对快速升温过程中煤颗粒的温度场时行的数值模拟，与实测结果进行了比较。并发现对于电站锅炉所燃用煤粉的粒径范围，在煤粉着落火前的升温过程中考虑非傅立叶导热应是十分必要的。

基于回转式空气预热器受热面积灰程度与烟气侧流动阻力间的依赖关系其相关影响因素，提出了折算压差的概念。推导了保佑灰监测的计算摸型。根据发电机组计算机数据采集系统（DAS）烟气侧实时检测的烟气侧压差等到参数，实现了300MW燃煤电站锅炉回转式究气预热器积灰状态监测。

基于边界层理论和完整的边界条件，采用Collocation方法，推导出了沿倾斜壁面下降的在蒸发、等温和冷凝状态下普通适用的二维降膜拜表面波扰动时域演化方程， 并分析了不同因素的影响。结果表明：蒸发不利于稳定，冷凝有利于稳定， 在蒸发状态下，热毛细力导致其失稳，在冷凝状态下，则促进其稳定；表面张力不从有促进流动稳定的作用，液膜的稳定性随倾角和雷诺数的增大逐渐减小，随Ka数的增大逐渐加强；在小雷诺数下，液膜的稳定性主要取决于蒸汽压力和热毛细力的变化，在高雷诺数下，则取决于惯性力；流体物性和壁面倾角在一整个雷诺数范围内对液、膜的稳定性起着非常重要的作用。

深入研究了某热电厂450t/h循环流化床锅炉运行中炉膛布风板严重漏渣的问题，根据布风板稳定运行的基本原理以及锅炉结构和实际运行数据，对炉膛布风板的漏渣原因进行了理论分析，计算了布风板当量直径与床层高度的比值对流化床临界压降的影响，合理地解释了漏渣的机理，并计论了可能存在的炉膛布风板设计和运行上的原因。