CAJ | 학술논문

以固定床式煤气化炉发展兴起的型煤富氧气化技术是符合我国能源战略政策的新技术。为掌握现有气化炉生产特性,采用计算流体动力学软件进行数值模拟。在建立与实际相对应的常压气化炉几何模型基础上,选用k-ε双方程模型、流体输运模型、SIMPLE方法求解N-S方程、P1模型,模拟出炉膛内的组分浓度场、温度场,为进一步研究炉内的燃烧状况、优化燃烧过程和指导生产工艺改进提供了理论依据。
이고정상식매기화로발전흥기적형매부양기화기술시부합아국능원전략정책적신기술。위장악현유기화로생산특성,채용계산류체동역학연건진행수치모의。재건립여실제상대응적상압기화로궤하모형기출상,선용k-ε쌍방정모형、류체수운모형、SIMPLE방법구해N-S방정、P1모형,모의출로당내적조분농도장、온도장,위진일보연구로내적연소상황、우화연소과정화지도생산공예개진제공료이론의거。
The briquette oxygen-enriched gasification technology developed with fixed bed coal gasifier is a new technology in line with our strategic policy of energy.In order to master the production characteristics of the existing gasifier,a computational fluid dynamics software was utilized to simulate in this paper.Based on the establishment of the geometric model of the atmospheric pressure gasifier corresponding to the actual operation,the two-way k-ε model,the fluid transport model and SIMPLE method was adopted to solve N-S equation and P1 model,so as to simulate the temperature and species concentration fields of the furnace.The simulation results provide theoretical basis for further study on combustion in the furnace,optimization of combustion process and guidance for production process improvement.