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模拟高速飞行器服役环境下的热发电系统研究

Research on Thermal Power Generation System in Simulated Service Environment of High Speed Aircraft

  • 摘要: 高速飞行器属于未来具有重大颠覆意义的飞行器,而能源装置是高速飞行器的关键技术。基于半导体的热发电技术有望实现高速飞行器能源装置轻质化。针对高速飞行器在热/能源管理方面的关键问题,以及对高比功率和高比能的需求,本文以高速飞行器对结构、设备提出的高度轻质化、集成化、一体化设计要求为牵引,开展了轻质高效防隔热材料与热电器件组集成技术的研究,完成了热发电系统集成样机方案的设计和原理样机的研制,并设计开展了地面模拟加热环境下的集成装置热态性能测试。研究结果表明:当冷热端温差约为275 ℃时,热发电系统集成样机的最大输出功率为103.9 W,系统转化效率最大为7.4%,且能稳定发电不小于1800 s。

     

    Abstract: High-speed aircrafts belong to the future aircraft with significant disruptive significance, and energy is the key technology for high-speed aircraft. Thermoelectric power generation technology based on semiconductors is expected to achieve lightweight energy devices for high-speed aircraft. In response to the key issues of thermal/energy management for high-speed aircraft and the demands for high specific power and high specific energy, driven by the highly lightweight, integrated and integrated design requirements for structures and equipment proposed by high-speed aircraft, research on the integration technology of lightweight and efficient thermal insulation and heat dissipation materials and thermoelectric devices was carried out. The design of the integrated prototype scheme of the thermoelectric power generation system and the development of the principle prototype were accomplished. The thermal performance test of the integrated device under the ground simulation heating environment was designed and carried out. The results show that under the temperature difference of around 275 ℃, the maximum output power of the thermoelectric power generation system integrated prototype is 103.9 W, the maximum system conversion efficiency is 7.4%, and the stable power generation is not less than 1800 s.

     

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