基于生态学准则对MCFC/AR混合系统的优化分析  

OPTIMIZATION ANALYSIS OF MCFC/AR HYBRID SYSTEM BASED ON ECOLOGICAL CRITERION

作　　者：缪承壮 黄跃武[1] Miao Chengzhuang;Huang Yuewu(College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《太阳能学报》2020年第6期143-149,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51078068)。

摘　　要：基于生态学准则对稳定状态下运行的熔融碳酸盐燃料电池(MCFC)与吸收式制冷机(AR)组成的混合系统进行优化,考虑系统存在的电化学和热力学不可逆性,导出混合系统等效输出功率、效率以及生态学性能系数(ECOP)的表达式。应用数值模拟分析混合系统性能,得到功率密度、效率以及ECOP分别与电流密度的基本关系,从而确定工作参数的优化区间。结果表明:混合系统运行时的输出功率和效率相比于燃料电池单独运行时有所提升,并且通过生态学优化能得到更为精确的优化工作区间。最后分析燃料电池的工作温度、工作压力以及制冷机内部不可逆性对混合系统生态学性能的影响。The optimization of the molten carbonate fuel cell(MCFC)and the absorption refrigerator(AR)hybrid system running in a stable state is carried out based on the ecological criterion.By considering the electrochemical and thermodynamic irreversibility of the system,the numerical expressions for the equivalent power output,the efficiency and the performance coefficient(ECOP)of the hybrid system are respectively derived.The performance of the hybrid system is analyzed by numerical simulation,and the basic relationship between the current density and the power density,the efficiency and the ECOP are obtained respectively.Then the optimization intervals of the working parameters are determined.The results show that the power output and efficiency of the hybrid system are increased compared to that of the stand-alone MCFC,and that the optimized working intervals is more accurate by ecological optimization.Finally,the influences of the operating temperature,operating pressure of the MCFC and the internal irreversibility of the AR on the ecological performance of the hybrid system are studied.

关 键 词：熔融碳酸盐燃料电池(MCFC) 吸收式制冷 混合系统 生态学优化 

分 类 号：TM911.4[电气工程—电力电子与电力传动]