光热辅助碳捕集系统动态建模与特性分析  

Dynamic Modeling and Characteristic Analysis of Solar-assisted Post-combustion Carbon Capture System

作　　者：唐子寒 吴啸[1] 沈炯[1] TANG Zihan;WU Xiao;SHEN Jiong(National Engineering Research Center of Power Generation Control and Safety,Southeast University,Nanjing 210096,China)

机构地区：[1]东南大学大型发电装备安全运行与智能测控国家工程研究中心,南京210096

出　　处：《工程热物理学报》2025年第2期384-393,共10页Journal of Engineering Thermophysics

基　　金：国家重点研发计划项目(No.2021YFE0112800);国家自然科学基金项目(No.52376002);中央高校基本科研业务费专项资金。

摘　　要：利用光热为溶剂再生供能是降低化学吸收碳捕集系统运行成本的有效方式,然而烟气和光照强度等因素的波动为系统运行带来挑战,需要分析光热辅助碳捕集系统的动态运行特性,为其稳定高效运行提供指导。为此,本文基于机理建模方法构建了光热辅助碳捕集系统的动态模型,并深入分析环境参数、烟气流量和系统内部操作参数变化下,整体系统的动态运行特性。基于分析结果设计了基于前馈–反馈的光热辅助碳捕集控制系统,为复杂工况下光热辅助碳捕集系统的灵活运行提供支撑。The utilization of photothermal energy for solvent regeneration is an effective way to reduce the operating cost of the chemical absorption carbon capture system.However,the fluctuations of parameters such as flue gas and irradiation intensity bring challenges to the operation of the system.It is necessary to analyze the dynamic operating characteristics of the solar-assisted postcombustion carbon capture system to provide guidance for its stable and efficient operation.To this end,a dynamic model of the solar-assisted post-combustion carbon capture system is built based on mechanism modeling method,and the dynamic characteristics of the integrated system are deeply analyzed under the changes of environmental parameters,flue gas flowrate and internal operating parameters of the system.Based on the analysis results,a feedforward-feedback control system for the solar-assisted carbon capture system is designed,providing support for the flexible operation of the integrated solar-assisted post-combustion carbon capture system under complex work conditions.

关 键 词：光热辅助碳捕集 动态建模 特性分析 灵活运行 

分 类 号：TK519[动力工程及工程热物理—热能工程] TP15[自动化与计算机技术—控制理论与控制工程]