摘要
为进一步优化现有集成超临界水煤气(SCWG)发电系统的热效率,文中提出了一种新型的煤与超临界水煤气一体化高效率发电系统设计。在该设计中,气化产物直接进入超临界涡轮机发电,并在减压之后与未反应的水分离的合成气转移到联合循环中。在不同水煤浆浓度(CWSC)和蒸汽机出口压力(Ph)对发电系统热效率的影响的实验结果表明,所设计的发电系统热效率高于参考发电系统,并在CWSC为25wt%和Ph为1bar情形下达到了54.68%的最佳热效率。
In order to optimize the thermal efficiency of the existing supercritical water gas(SCWG)integration power generation system,this paper proposes a new type of high efficiency power generation system for coal and supercritical water gas integration.In this design,the gasification product directly enters the supercritical turbine to generate electricity,and the syngas separated from the unreacted water after depressurization is transferred to the combined cycle.Experimental results on the effects of different coal water slurry concentration(CWSC)and steam engine outlet pressure(Ph)on the thermal efficiency of the power generation system show that the power generation system has higher thermal efficiency than the reference power generation system,achieves optimum thermal efficiency of 54.68%in the case of CWSC of 25 wt%and Ph of 1 bar.
作者
梁国智
LIANG Guo-zhi(Maoming Mineng Thermal Power Co.,Ltd.,Maoming 525011,Guangdong Province,China)
出处
《信息技术》
2019年第4期152-156,共5页
Information Technology
关键词
超临界水气化
能量平衡
系统集成
supercritical water gasification
energy balance
system integration
