Mechanism and Model Realization of Pulverized Coal Combustion Simulation and Calculation with FLUENT
DING Li-wei;LI Feng-rui(Zhejiang Electric Power Test and Research Institute;
Abstract：
In-depth knowledge of the mechanism and model realization approach of pulverized coal combustion simulation and calculation with FLUENT is required for modification of calculation model of pulverized coal combustion.This paper elaborates the implication and switching conditions for every step of combustion of a single particle,performs the study on the method of calculating the number of particles for tracking with User Defined Function(UDF),switching between processes,relationship between process and rules,maximum transfer number of user-defined rules in particle life cycle and the transfer mechanism of process rules.The study is illustrated clearly with the schematic diagram.The indepth knowledge can be obtained as to mechanism and model realization approach of pulverized coal combustion simulation and calculation with FLUENT based on the research result so that it can provide basis for rebuilding the pulverized coal combustion model.
Key Words： FLUENT;pulverized coal;combustion;numerical calculation;rules;UDF
Foundation:
Author: DING Li-wei;LI Feng-rui(Zhejiang Electric Power Test and Research Institute;
DOI: 10.19585/j.zjdl.2010.11.010
References：
- 王培萍,岳希明,赵世伟,等.双强少油煤粉点火燃烧技术在600 MW锅炉上的应用[J].锅炉技术,2009,40(4):49-52.
- 阎维平,刘亚芝.300 MW四角切圆煤粉锅炉燃烧工况的数值模拟及优化研究[J].锅炉技术,2007,38(6):14-19.
- 李路明,陈力哲,孙锐,等.水平浓淡微油点火煤粉燃烧器燃烧过程数值模拟及工业应用[J].电力建设,2008,29(8):7-12.
- 郭建民,刘石,姜凡.300 MW旋流对冲燃煤锅炉燃烧与排放数值模拟[J].锅炉技术,2006,37(4):44-48,54.
- 申春梅,孙悦,吴少华.1 GW单炉膛双切圆炉内煤粉燃烧过程的数值模拟[J].中国电机工程学报,2006,26(15):51-57.
- Fluent Inc.Fluent6.2 User′s Guide[M].2005
- 徐旭常,周力行.燃烧技术手册[M].北京:化学工业出版社.2008.
- Fluent Inc.Fluent6.2 UDF Manual[M].2005.