Development of an experimental loop heat pipe for application in future space missions
Development of an experimental loop heat pipe for application in future space missions
复制标题
DOI：
10.1016/j.applthermaleng.2004.05.010
复制
发表时间：
2005
影响因子：
6.4
通讯作者：
R. Riehl;T. Dutra
中科院分区：
文献类型：
--
作者：
R. Riehl;T. Dutra
回路热管作为航天器的两相热控装置已被广泛应用于航天器。因此，与这种装置的设计、小型化和使用危险工作流体（例如氨）有关的问题仍然是一个问题。为了面对这样的问题，本文提出了一个实验LHP的小型化和使用替代工作流体处理的发展。建立了一个实验性的LHP，并使用丙酮作为工作流体进行测试，设计为管理高达70 W，并使用有效长度减少的毛细管蒸发器。实验结果表明，良好的热管理性能的建议LHP的限制，其设计和操作。拟议的LHP是一种可靠的热管理装置，适用于未来的空间飞行任务，特别是在考虑使用危险性较小的工作流体和特定的几何特征时。
The application of loop heat pipes (LHPs) as two-phase thermal control devices for space missions has been considered and successfully used in many spacecraft. Therefore, issues related to design, miniaturization of such a device and use of hazardous working fluids such as ammonia are still a concern. In order to face such concerns, this paper presents the development of an experimental LHP that deals with miniaturization and the use of an alternative working fluid. An experimental LHP was built and tested with acetone as the working fluid, designed to manage up to 70 W and using a capillary evaporator with reduced active length. The experimental results showed good thermal management performance of the proposed LHP for the imposed limitations to its design and operation. The proposed LHP presented to be a reliable thermal management device for application in future space missions, especially when considering the use of a less hazardous working fluid and the particular geometric characteristics.