低压储能的升浮一体飞行器总体参数研究

李冠雄; 王靖宇; 王运涛

doi:10.7527/S1000-6893.2020.24438

航空学报 >

2021 , Vol. 42 >Issue 7: 224438 - 224438

DOI: https://doi.org/10.7527/S1000-6893.2020.24438

固体力学与飞行器总体设计

低压储能的升浮一体飞行器总体参数研究

李冠雄 ,
王靖宇 ,
王运涛

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1. 四川大学空天科学与工程学院, 成都 610065;
2. 四川大学视觉合成图形图像技术国防重点学科实验室, 成都 610065

收稿日期: 2020-06-19

修回日期: 2020-07-24

网络出版日期: 2020-09-14

基金资助

四川省科技计划项目（2020YJ0019）；四川省重大科技专项课题（2019YFG0382）；四川省科技计划项目（2019YJ0294）

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Parametric study on buoyancy-lifting aerial vehicle with low pressure energy storage method

LI Guanxiong ,
WANG Jingyu ,
WANG Yuntao

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1. School of Aeronautics and Astronautics, Sichuan University, Chengdu 610065, China;
2. National Key Laboratory of Fundamental Science on Synthetic Vision, Sichuan University, Chengdu 610065, China

Received date: 2020-06-19

Revised date: 2020-07-24

Online published: 2020-09-14

Supported by

Sichuan Science and Techonology Program (2020YJ0019); Sichuan Major Science and Technology Program (2019YFG0382); Sichuan Science and Technology Program (2019YJ0294)

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摘要

升浮一体飞行器是一种综合了太阳能无人机和平流层飞艇特点的新型临近空间飞行器，是航空航天领域研究的热点，可再生燃料电池是升浮一体飞行器最有发展前景的储能装置。针对现有燃料电池中氢气和氧气存储方式的缺陷，充分利用升浮一体飞行器巨大的机身体积，提出了采用低压气囊储气的燃料电池方案，建立了升浮一体飞行器总体参数计算模型，提出常规燃料电池和气囊储气燃料电池的理论计算方法。研究了不同储气方式对升浮一体飞行器的能源系统以及飞行器总体参数的影响。研究表明，采用低压储气方法后，氢气的质量储气密度可提高至13.0%，燃料电池存储能量为1 489.7 kWh条件下，能量密度可达到1 000 Wh/kg以上，对减小升浮一体飞行器总重和外形尺寸、提高飞行器载荷能力有显著作用。

关键词： 临近空间; 升浮一体飞行器; 低压储能; 燃料电池; 总体参数

本文引用格式

李冠雄 , 王靖宇 , 王运涛 . 低压储能的升浮一体飞行器总体参数研究[J]. 航空学报, 2021 , 42(7) : 224438 -224438 . DOI: 10.7527/S1000-6893.2020.24438

Abstract

The buoyancy-lifting aerial vehicle, a novel near-space aircraft with characteristics of both the solar aircraft and the stratospheric airship, has become a research hotspot in the field of aeronautics and astronautics. The regenerative fuel cell is the most promising energy storage device for the buoyancy-lifting aerial vehicle. Aiming at the defects of the hydrogen and oxygen storage method of existing fuel cells, we propose a scheme of fuel cells with low pressure gasbags, fully utilizing the huge fuselage volume of the buoyancy-lifting aerial vehicle. The calculation model of the general parameters of the vehicle is established, and the theoretical calculation methods for conventional fuel cells and the fuel cells with gasbags are proposed. Effects of the energy storage methods on the energy system and the general parameters of the aircraft are studied. Results show that the low pressure energy storage method can increase the mass storage density of the hydrogen to 13.0%; when the stored energy of the fuel cell is 1 489.7 kWh, the specific energy can reach more than 1 000 Wh/kg, leading to significant reduction in the total weight and the overall dimension of the buoyancy-lifting aerial vehicle and improvement in the load capacity of the vehicle.

Key words： near-space; buoyancy-lifting aerial vehicles; low pressure energy storage; fuel cells; general parameters

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