“双碳”目标下新型医疗废物气化多联产系统3E分析  

3E Analysis of a Novel Medical Waste Gasification Polygeneration System with'Carbon Peak'and'Carbon Neutrality'Goals

作　　者：孔梦迪 叶学民[1] 刘迪[1] 李春曦[1] KONG Mengdi;YE Xuemin;LIU Di;LI Chunxi(Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology,North China Electric Power University,Baoding 071003,Hebei Province,China)

机构地区：[1]华北电力大学河北省低碳高效发电技术重点实验室,河北保定071003

出　　处：《动力工程学报》2024年第5期817-826,共10页Journal of Chinese Society of Power Engineering

摘　　要：基于传统医疗废物气化多联产机组(常规方案),提出了2种耦合碳捕集与封存(CCS)的低碳方案1和方案2。从能量、[火用]和经济性(3E)角度对3种方案进行对比。针对最优的方案2开展[火用]流分析,并讨论了烟气再循环比对系统性能的影响。结果表明:相较于常规方案,方案2在净发电效率降低15.38%的情形下,整体[火用]效率提高了7.18%;低碳方案2的动态回收期比方案1的减少3.12a,净现值增加590.60万元;方案2在保证机组良好性能的同时可实现低碳排放的目标,且具有较高的经济收益;增大烟气再循环比可提高集成系统的经济收益。Based on the conventional medical waste gasification polygeneration system(conventional scheme),two low-carbon schemes 1 and 2 coupled with carbon capture and storage(CCS)were proposed.The three schemes were compared from the viewpoints of energy,exergy and economy(3E).The exergy analysis of optimal scheme 2 was carried out,and the impact of exhausted gas recirculation(EGR)on system performance was discussed.Results show that the overall exergy efficiency of scheme 2 is increased by 7.18%with 15.38%reduction in net power generation efficiency compared with conventional scheme.The dynamic payback period(DPP)of low carbon scheme 2 is 3.12 years less than that of scheme 1,and the net present value(NPV)is increased by 5.9060 million yuan.Scheme 2 can ensure the excellent performance of the system and achieve the goal of low carbon emissions with significant economic benefits.Meanwhile,increasing the exhausted gas recirculation ratio can enhance the economic benefits of the integrated system.

关 键 词：医疗废物气化 冷热电联产系统 碳捕集与封存 3E分析 烟气再循环 

分 类 号：TM611[电气工程—电力系统及自动化]