摘要
将分析引入煤炭地下气化过程分析当中,建立了煤炭地下气化过程分析模型,研究了煤炭地下气化系统的物料及能量转移规律.分析了唐山刘庄煤矿地下气化过程.结果表明,其系统综合效率为85.18%,外供效率为65.66%,不可逆过程损达到14.82%.与地面气化装置相比,地下气化炉综合效率高于高炉和发生炉,低于焦炉,其损主要来自于燃烧不可逆损和传热不可逆损.
The exergie analysis model of underground coal gasification (UCG) process was established. The mass and energy conversion of special UCG system was studied and evaluated. The evaluation of UCG process in Liuzhuang mine shows that 1) the general exergie efficiency of the UCG process is about 85.18% ;2) the outer-supply exergie efficiency is 65.66%; and 3) the irreversible exergie loss is 14.82%. Compared with the ground surface gasification, the exergie efficiency of underground gasifier is higher than that of blast furnace and ground surface gasifier but lower than that of coke oven. The exergie loss mainly comes from the irreversible losses of both combustion and heat transfer.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2004年第2期200-204,共5页
Journal of China University of Mining & Technology
基金
国家高技术研究发展计划(863计划)项目(2001AA529030)
国家自然科学基金项目(20207014)
关键词
煤炭地下气化
能量转移
炯分析
综合炯效率
外供炯效率
炯损
UCG
exergie analysis
general exergie efficiency
outer-supply exergie efficiency
exergie loss
