基于SOFC的功冷联供系统热力学特性分析  

Thermodynamic characteristic analysis of power and cooling system drived by SOFC

作　　者：王寒冰 刘晓辉 田民丽 王桂华[1] 于泽庭[1] 纪少波[1] WANG Hanbing;LIU Xiaohui;TIAN Minli;WANG Guihua;YU Zeting;JI Shaobo(School of Energy and Power Engineering,Shandong University,Jinan 250061,Shandong,China;Weichai Power Co.,Ltd.,Weifang 261061,Shandong,China)

机构地区：[1]山东大学能源与动力工程学院,山东济南250061 [2]潍柴动力股份有限公司,山东潍坊261061

出　　处：《山东大学学报（工学版）》2019年第5期64-71,共8页Journal of Shandong University（Engineering Science）

基　　金：国家重点研发计划项目;山东省自然科学基金资助项目(ZR2019MEE045)

摘　　要：为提高固体燃料电池(solid oxide fuel cell,SOFC)的能源综合利用效率,提出一种基于SOFC循环、燃气轮机和吸收式制冷机的功冷联供系统。建立联供系统的热力学模型,给出设计工况下的热力学参数,对联供系统进行模拟分析。结果表明,在设计工况下,燃料电池发电效率、联供系统总发电效率和功冷联供效率分别为46.81%、54.53%和72.24%。燃料电池进口温度为620℃时,联供系统取得最大总发电效率和功冷联供效率,分别为54.66%和72.42%;在燃料电池进口温度为600℃时,联供系统输出制冷量最多。In order to improve the energy utilization efficiency of a solid oxide fuel cell,a combined power and cooling system which integrated a solid oxide fuel cell,a gas turbine and an absorption chiller was proposed.A mathematical model was developed,and the thermodynamic parameters of the system were given to study the system performance under steady-state conditions.Results showed that,under the given conditions,the SOFC electrical efficiency,the total electrical efficiency of combined system and the power-cooling efficiency were 46.81%,54.53%and 72.24%,respectively.When the SOFC inlet temperature was 620℃,the maximum total electrical efficiency of combined system and the maximum power-cooling efficiency were obtained 54.66%and 72.42%,respectively.When the inlet temperature of fuel cell was 600℃,the cooling capacity of the combined supply system was the largest.

关 键 词：固体氧化物燃料电池 吸收式制冷 热力性能 功冷联供 

分 类 号：TM911[电气工程—电力电子与电力传动]