典型煤碳燃烧特性研究和数值模拟

本文以三种典型煤的碳燃烧为研究对象，分别采用简单一维沉降燃烧方式和等温加热燃烧方式，实验研究了煤在快速加热条件下，其碳的初期和中，后期燃烧过程。以实验为基础，建立了煤的碳燃烧模型，变工况数值模拟了煤的碳燃烧过程，揭示了煤不同条件下的单颗粒碳燃烧特性。

STUDY OF CHARACTERISTICS OF CHAR COMBUSTION OF TYPICAL KINDS OF COAL AND NUMERICAL SIMULATIONS

The processes of char combustion of three typical kinds of coal were investigated. The both experiments which are the coal particle combustion in a simple one dimension furnace and in a constant high temperature heating furnace were performed for the research of combustion behaviors of coal combustion in different periods. Based on the experiments, the char of coal combustion mode was developed. The numerical simulations of coal char combustion were made under several conditions. The results from the experiments and the numerical computations discovered characteristics of char combustion of single coal particle.