摘要
随着空间探索任务的不断深入,对高效、可靠的空间核电源需求日益迫切。本文建立了一种由铯热离子能量转换器(Cesium Thermionic Energy Converter, CTEC)和温差发电器(Thermoelectric Generator, TEG)组成的静态混合动力发电系统的数学模型,考虑了CTEC模块的不可逆热损失和附加能垒,以及TEG模块的汤姆逊效应。探究CTEC输出电压、阳极功函数、TEG电流对系统输出功率、转换效率的影响。结果显示:混合发电系统的输出功率与转换效率随CTEC输出电压的增大呈抛物线关系,减小阳极功函数有利于提高系统性能,TEG电流变化对系统影响较小,通过效率随输出功率的变化确定了该系统的最佳工作区间,为今后CTEC-TEG混合发电系统的优化设计和应用提供了参考。
In this study,a mathematical model of a static hybrid power generation system com-posed of a cesium thermionic energy converter(CTEC)and a thermoelectric generator(TEG)was established.The model takes into account the irreversible heat loss and additional energy barriers of the CTEC module,as well as the Thomson effect of the TEG module.The effects of the CTEC output voltage,anode work function,and TEG current on the system's output power and conversion efficiency were investigated.The results show that the output power and conversion efficiency of the hybrid power generation system exhibit a parabolic relationship with the increase of the CTEC output voltage.Reducing the anode work function is beneficial for improving system performance,while the TEG current has a minor impact on the system.The optimal operating region of the sys-tem was determined by analyzing the relationship between eficiency and output power,providing a reference for the optimal design and application of CTEC-TEG hybrid power generation systems in the future.
作者
马方惟
张昊春
邓明浩
罗曦
MA Fangwei;ZHANG Haochun;DENG Minghao;LUO Xi(School of Energy Science and Engineering,Harbin Institute of Technology,Harbin150001,China)
出处
《工程热物理学报》
北大核心
2025年第8期2481-2491,共11页
Journal of Engineering Thermophysics
关键词
静态混合发电系统
铯热离子能量转换
温差热电能量转换
不可逆热损失
static hybrid power generator system
cesium thermionic energy converter
thermo-electric generator
irreversible heat loss
