Modelling coal gasification in an entrained flow gasifier

被引：30
|
作者：
Liu, XJ [1 ]
Zhang, WR
Park, TJ
机构：
[1] Univ Sci & Technol Beijing, Dept Thermal Engn, Beijing 100083, Peoples R China
[2] KEIR, Energy Environm Res Dept, Taejon 305343, South Korea
来源：
COMBUSTION THEORY AND MODELLING | 2001年 / 5卷 / 04期
关键词：
D O I：
10.1088/1364-7830/5/4/305
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Coal gasification processes in a slurry-feed-type entrained-flow gasifier are studied. Novel simulation methods as well as numerical results are presented. We use the vorticity-stream function method to study the characteristics of gas flow and a scalar potential function is introduced to model the mass source terms. The random trajectory model is employed to describe the behaviour of slurry-coal droplets. Very detailed results regarding the impact of the O-2/coal ratio on the distribution of velocity, temperature and concentration are obtained. Simulation results show that the methods are feasible and can be used to study a two-phase reacting flow efficiently.
引用
收藏
页码：595 / 608
页数：14
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