布雷顿循环和半导体温差联合发电技术在飞行器上的应用

Applicability of combined generation technology based on Brayton cycle and semiconductor thermoelectric principle for vehicles

文章针对飞行器燃烧室高温壁面提出了初步的闭式布雷顿循环和半导体温差联合发电方案。首先,建立了简化的理论计算模型,开展了温度场计算分析;然后,根据布雷顿循环发电系统的关键节点温度和半导体温差电材料冷热端温差计算结果,给出联合发电系统的整体发电量和基本性能参数。研究结果为布雷顿循环和半导体温差联合发电系统在飞行器上的应用提供了指导和借鉴。

A new combined power generation scheme based on the Brayton cycle and the semiconductor thermoelectric principle is proposed for the high temperature shell of the flying vehicle combustor. A theoretical model is built and a computational analysis of the temperature is carried out. The calculation results of a key node of the Brayton cycle and the temperatures of the semiconductor thermoelectric generator are used to calculate the overall generation capacity and the basic performance parameters of the combined generation system. The result may provide some guidance and reference for the applications of combined generation technology for aerospace vehicles.