The results of the experimental studies of the ignition process of a pulverized fuel mixture based on coal and biomass — forest combustible material (FCM) have been given. As the second component of the fuel the wastes of various deciduous or coniferous species of trees have been used.

The experiments have been carried out on the equipment that provides a fairly low level of error when registering the main characteristics (ignition delay time of the fuel particles _tign, ambient temperature T_g) of heat and mass transfer processes occurring together during ignition of bio-coal fuel during thermal preparation. It has been established that the addition of biomass to coal leads to a significant reduction (up to 30%) of the entire ignition period of the fuel mixture. The video recording of the ignition processes has allowed to identify the main stages of thermal preparation and ignition of the bio-coal fuel particles. It has been established that the particles of biomass (leaf or fir needles) ignite faster than coal.

A mathematical model has been developed based on the results of a detailed analysis of the videograms of the ignition process of the bio-coal mixtures describing the joint flow of the main processes of heat and mass transfer under conditions of the intense phase and thermochemical transformations. A numerical simulation of the ignition process has been carried out and the ignition delay times have been established. A comparative analysis of the theoretical and experimental values of t_ign has shown their good conformance.

给出了基于煤和生物质的粉状燃料混合物-森林可燃物（FCM）着火过程的实验研究结果。作为燃料的第二成分，已经使用了各种落叶或针叶树种的废物。

在记录_生物燃料点火过程中同时发生的传热和传质过程的主要特征（燃料颗粒点火的点火延迟时间，环境温度T _g）时，该设备在提供较低误差水平的设备上进行了实验。热准备过程中的煤燃料。已经确定，向煤中添加生物质会导致燃料混合物整个点火期间的显着减少（最多30％）。点火过程的视频记录可以识别生物煤燃料颗粒的热准备和点火的主要阶段。已经确定，生物质颗粒（叶或冷杉针）的点燃速度比煤快。

基于对生物煤混合物着火过程的视频图进行详细分析的结果，开发了数学模型，描述了在强相和热化学转化条件下热与质传递的主要过程的联合流动。进行了点火过程的数值模拟，并确定了点火延迟时间。对t _ign的理论和实验值的比较分析表明它们具有良好的一致性。