基于超高温气冷堆的氢电联产系统设计分析  

Design and Analysis of the Hydrogen-electricity Cogeneration System Based on Very-high-temperature Gas-cooled Reactors

作　　者：倪航 曲新鹤 赵钢 张平[1,2] 彭威 NI Hang;QU Xinhe;ZHAO Gang;ZHANG Ping;PENG Wei(Institute of Nuclear and New Energy Technology,Advanced Nuclear Energy Technology Cooperation Innovation Center,Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education,Tsinghua University,Beijing 100084,China;Tsinghua University-Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学核能与新能源技术研究院,先进核能技术协同创新中心,先进反应堆工程与安全教育部重点实验室,北京100084 [2]清华大学-张家港氢能与先进锂电技术联合研究中心,北京100084

出　　处：《工程热物理学报》2023年第11期3117-3124,共8页Journal of Engineering Thermophysics

基　　金：国家重点研发计划(No.2022YFB1903000,No.2020YFB1901604)。

摘　　要：超高温气冷堆耦合碘硫循环制氢是一种极具发展前景的核能制氢技术。本文提出了一种基于超高温气冷堆的新型氢电联产系统,采用碘硫循环和氦气透平循环来制氢和发电,建立了能量分析的热力学模型,分析了氦气透平循环总压比和反应堆出口温度对系统性能的影响。然后本文以系统氢电效率最大为目标,在总压比、反应堆入口温度、系统净输出功等参数的约束条件下,对系统进行关键参数优化,并分析了反应堆出口温度对优化结果的影响。结果表明:950℃、1000℃、1050℃三种反应堆出口温度下,建议的氦气分流比控制范围分别为0.031~0.750、0.112~0.750、0.181~0.750,对应的产氢率变化范围分别为17.4~295.6 mol·s^(-1)、61.4~298.0 mol·s^(-1)和96.5~299.8 mol·s^(-1)。The coupling of the very-high-temperature gas-cooled reactor and the iodine-sulfur cycle for hydrogen production is a promising nuclear hydrogen production technology.In this paper,a hydrogen-electricity cogeneration system based on a very-high-temperature gas-cooled reactor is proposed,which uses iodine-sulfur cycle and helium turbine cycle to produce hydrogen and generate electricity.The thermodynamic model of energy analysis is established,and the effects of total compression ratio of helium turbine cycle and reactor outlet temperature on system performance are analyzed.Then the key parameters of the system are optimized under the constraints of total compression ratio,reactor inlet temperature,and net output work of the system with the maximum hydrogen-electricity efficiency as the target,and the influence of the reactor outlet temperature on the optimization results is analyzed.The results show that the suggested control ranges of the helium split ratio are 0.031∼0.750,0.112∼0.750,and 0.181∼0.750 for the three reactor outlet temperatures of 950℃,1000℃,and 1050℃,respectively,and the corresponding variation ranges of hydrogen production rate are 17.4∼295.6 mol·s^(-1),61.4∼298.0 mol·s^(-1),and 96.5∼299.8 mol·s^(-1).

关 键 词：超高温气冷堆 碘硫循环 氦气透平循环 热力学分析优化 

分 类 号：TK123[动力工程及工程热物理—工程热物理]