CAJ | 학술논문

以某循环流化床富氧燃烧中试系统为模拟对象，借助Aspen Plus流程模拟软件搭建了Oxy-CFB燃烧系统的稳态模型。在此基础上针对动态过程模拟进行改进，并利用Aspen Dynam-ics平台建立了该燃烧系统的动态模型，利用试验数据对模拟结果进行了验证。基于动态模型对Oxy-CFB床温以及燃烧排放产物中二氧化碳、氧气、一氧化碳、一氧化氮等进行了仿真研究。研究表明，基于Aspen平台的动态过程模拟为Oxy-CFB锅炉燃烧系统的动态特性分析提供了新的研究手段，模拟所得的床温及烟气各组分随给煤量、一次风量阶跃变化的动态响应规律可为今后Oxy-CFB燃烧系统的控制设计提供重要依据。
이모순배류화상부양연소중시계통위모의대상，차조Aspen Plus류정모의연건탑건료Oxy-CFB연소계통적은태모형。재차기출상침대동태과정모의진행개진，병이용Aspen Dynam-ics평태건립료해연소계통적동태모형，이용시험수거대모의결과진행료험증。기우동태모형대Oxy-CFB상온이급연소배방산물중이양화탄、양기、일양화탄、일양화담등진행료방진연구。연구표명，기우Aspen평태적동태과정모의위Oxy-CFB과로연소계통적동태특성분석제공료신적연구수단，모의소득적상온급연기각조분수급매량、일차풍량계약변화적동태향응규률가위금후Oxy-CFB연소계통적공제설계제공중요의거。
Taking an oxy-fuel circulating fluidized bed (Oxy-CFB )combustor pilot facility as the simulation object,a steady-state model for the Oxy-CFB combustion system was built with the plat-form of Aspen Plus.After modifying the steady-state model for the dynamic process simulation,a new dynamic model for the combustion system was built based on Aspen Dynamics and the results were validated by the test data.The simulation study on the responses of the bed temperature and the components,including carbon dioxide,oxygen,carbon monoxide,and nitrogen monoxide in the flue gas,was carried out.The research results show that the dynamic model based on Aspen pro-vides a new method to investigate the dynamic characteristics of the Oxy-CFB combustion system. The dynamic response characteristics of bed temperature and gas components for the coal feed and primary air step changes can provide valuable information for design and implementation of the con-trol system of the Oxy-CFB combustion system.