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建立了考虑电子源间热漏的不可逆双谐振通道能量选择性电子热机模型,联合统计力学和有限时间热力学理论,导出了系统的功率、效率、熵产率、生态学函数等主要性能参数的表达式。由数值计算对系统的生态学性能进行了分析和优化,得到了功率、效率、生态学函数等特性参数的最优区间和相互关系;获得了热漏、中心能量位置等设计参数对系统最优性能的影响特点。所得结果对多层固态热离子装置等实际电子机系统的设计和运行具有理论指导意义。
The irreversible double-resonance channel energy-selective electron heat engine model considering the heat leak between electron sources was established, and the expression of the key performance parameters such as power, efficiency, entropy yield rate and ecological function of the system was derived by combining the statistical mechanics and the finite-time thermodynamics theory formula. The ecological performance of the system was analyzed and optimized by numerical calculation. The optimal intervals and correlations of the characteristic parameters such as power, efficiency and ecological function were obtained. The design parameters such as heat leak and central energy position were obtained to optimize the system Characteristics of the impact of performance. The results provide theoretical guidance for the design and operation of practical electronic machine systems such as multi-layer solid-state thermionic devices.