使用燃料电池为电力推进系统提供动力
Using fuel cells to power electric propulsion systems
摘要：
燃料电池技术的起源与航天历史有着显著的联系，曾被用于双子星、阿波罗和航天飞机等非凡的计划中。随着近年来电力推进技术的不断发展，燃料电池的一个自然应用将是为不同任务剖面的推进器供电。在这篇文章中，我们将详细探讨这种可能性，显示什么样的设备是必要的特性，以改善任务参数，如有效载荷比和推力，等等。在第一部分中，简要回顾了燃料电池在航天工业中的应用，并介绍了这些设备的经典分析模型。在第二部分中，两个案例研究说明了大多数可能的方式来使用燃料电池与电力推进系统的显示，和可能的优点和应用的局限性进行了论证分析。分析结果表明，在燃料电池反应产物被处理和推进器有自己的供给系统的情况下，燃料电池技术的应用对大多数任务没有优势。另一方面，当考虑使用燃料电池排气作为推进剂的情况时，表明如果满足某些条件，则可以改善任务参数，例如推力和比冲。
英文摘要：
The origin of fuel cell technology has a notable connection to the history of spaceflight, having been used in remarkable programs such as Gemini, Apollo and the Space Shuttle. With the constant growth of the electric propulsion technology in the last years, one natural application for fuel cells to be considered would be the electrical feeding of those thrusters for different mission profiles. In this article we explore in details this possibility, showing what would the necessary characteristics of such a device be in order to improve mission parameters, as payload ratio and thrust, among others. In the first section, a brief review of the applications of fuel cells in the space industry is shown, and the classical analytical modeling of these devices is presented. In the second part, two case studies illustrating most of the possible ways to use fuel cells in conjunction with electric propulsion systems are shown , and the possible advantages and limitations of the applications are demonstrated analytically. The result of the analysis shows that, in the case where the fuel cell reaction products are disposed of and the propulsion has its own feed system, the application of fuel cell technology would bring no advantages for most kinds of missions. On the other hand, when the case where the fuel cell exhaust is used as a propellant is considered, it is shown that it is possible to improve mission parameters, such as thrust and specific impulse, if certain conditions are met.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
