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Recent development on heat pipes for ground and space applications

机译:地面和太空应用热管的最新发展

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Self-Rewetting Fluid experiment is aimed to study the fundamental physics and the evaporative heat and mass transfer from the free surface of pure liquids and self-rewetting fluids, in a grooved heat pipe model on board the International Space Station. In this paper, the role of thermo-capillary effect on two-phase heat transfer device is investigated on ground with a semi-transparent breadboard apparatus based on a single V-shaped groove channel. The working fluid is an environmentally sustainable engineered liquid Novec 7100 (Methoxy-nonafluorobutane), whose low freezing point makes it ideal for use in space applications. The experimental results are explained on the basis of numerical models including evaporation, heat and mass transfer from the liquid/vapour interface and Marangoni effects. In addition, special attention is focused on the wetting properties of copper surfaces. Work is in progress in order to control the wettability of copper surface with water, using functionalized surfaces.
机译:自重润湿流体实验旨在在国际空间站上的带槽热管模型中研究纯物理液体和自重润湿流体的自由表面的基本物理原理以及蒸发传热和传质。在本文中,利用基于单个V形凹槽通道的半透明面包板设备,在地面上研究了热毛细管效应在两相传热装置中的作用。该工作液是一种环保可持续的工程液体Novec 7100(甲氧基-九氟丁烷),其低凝固点使其非常适合在太空应用中使用。实验结果是基于包括蒸发,液体和蒸气界面的传热和传质以及Marangoni效应在内的数值模型进行解释的。此外,应特别注意铜表面的润湿性能。为了使用功能化的表面控制铜表面与水的润湿性,正在进行工作。

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