太阳能驱动的氢-冷-热-电综合能源系统性能分析  

Performance Assessment of Hydrogen-cooling-heating-electricity Integrated Energy System Driven by Solar Energy

作　　者：卞飞宇 陈常念[1] 赵浩然 于泽庭[1] BIAN Feiyu;CHEN Changnian;ZHAO Haoran;YU Zeting(School of Energy and Power Engineering,Shandong University,Jinan 250061,China;School of Electrical Engineering,Shandong University,Jinan 250061,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]山东大学电气工程学院,山东济南250061

出　　处：《供用电》2022年第1期17-23,共7页Distribution & Utilization

基　　金：山东省自然科学基金项目(ZR2019MEE045);国家自然科学基金项目(61733010)。

摘　　要：基于可再生能源的综合能源系统具有清洁低碳与安全高效的特点。提出一种以抛物面槽式太阳能集热器驱动的综合能源系统,该系统包括质子交换膜电解池、有机朗肯循环和吸收式制冷子系统。根据能量梯级利用原理和热力学分析理论,建立综合能源系统的稳态数学模型,分析热力参数变化对系统性能的影响规律。结果表明,在设计条件下,质子交换膜电解槽制氢效率、有机朗肯循环发电效率和吸收式制冷效率分别为58.65%、12.20%、36.93%,制氢功冷联供总效率为55.58%。系统总效率随着涡轮机入口温度升高先增加后减少;随着发生器出口温度升高而增加。另外,增加工作压力和膜厚度会导致电解槽电压升高和电解槽效率下降。研究结果可为以抛物面槽式太阳能集热器驱动的多联供系统的建立和评价提供参考。Renewable energy based integrated energy system is characterized by clean,low-carbon,safe and efficient features.This study proposed an integrated energy system driven by parabolic trough solar collector(PTSC),which included polymer electrolyte membrane electrolyzer(PEM),organic rankinecycle(ORC) and absorption chiller(AC) subsystem.According to the principle of energy gradient utilization and thermodynamic analysis theory,a steady-state mathematical model of the integrated energy system was established to analyze the influence of key thermodynamic parameters on the system performance.The results showed that under the design conditions,the PEM hydrogen generation efficiency,the ORC electrical efficiency,and the AC efficiency were 58.65%,12.20%,36.93% respectively,and the total efficiency of the integrated energy system was 55.58%.It was found the system efficiency was increased firstly then decreased with the inlet temperature of the turbine increased,and was increased as the generator outlet temperature was increased.In addition,increasing working pressure and membrane thickness led to a higher cell voltage and a lower electrolyzer efficiency.The research results can provide references for the establishment and evaluation of innovative multigeneration system driven by PTSC.

关 键 词：综合能源系统 PEM电解池 有机朗肯循环 吸收式制冷 系统效率 

分 类 号：TM71[电气工程—电力系统及自动化]