Next Generation Loop Heat Pipe wick technology for thermal management of Space and Terrestrial applications

本项目旨在全面了解和改进LHP技术，并设计和开发几个功能单元进行测试。制造新型LHP设计的目的是展示该技术在许多热控制应用中的可靠性和灵活性，特别是在空间、航空航天、医疗/测试设备和卫星领域的设备中使用。测试每个单元的结果将用作开发更小、更高效设计的垫脚石。这些活动被认为是为了实现上述目标：*建立一套设计要求；*全面检讨使用热管冷却空间及地面设备的被动系统，以及最新的新型热管芯设计；*制定组件选择、制造、清洗、装配、疏散和充电的程序；*为LHP实验室配备制造和测试能力；*灯芯性能的定制和新灯芯轮廓的构建（例如非圆形），从而建立新的高性能LHP设计；*使用先进的制造方法（如选择性激光熔化/增材制造和微纤维芯烧结）研究下一代芯材和设计；*基于气泡点测试和/或想象技术的新型灯芯材料的结构特征和孔隙度、渗透率、孔隙半径、毛细高度的测量；*计算流体动力学（CFD）模型的流体流动通过提出的灯芯结构；*基于循环热管的新型换热器结构；*热交换器样机测试；*通过性能测试确定需要解决的关键问题；*开发一种新的数学模型来估计工作流体的性质，并计算流体库存和补偿室的尺寸；*开发一种新的数学模型来模拟LHP的特性；*对LHP试验所得数据进行实验验证，并与文献数据进行比较；*将测试结果与以往有关lhp的调查结果进行比较；*将数学模型与文献中已有的模型进行比较；*编写换热器技术文档；写论文；

This project aims to gain an overall understanding and improvement of LHP technology and to design and develop several functional units for testing. The purpose of manufacturing a novel designs of LHP is to demonstrate the technology's reliability and flexibility for use in many thermal control applications, and in particular devices operating in space, aerospace, medical/test equipment and satellite sectors. The results from testing each unit will be use as stepping stone for development of much smaller and more efficient designs. Those activities are considered to achieve the above mentioned objectivities:* Establish a set of designs requirements;* Comprehensive review of the passive systems for cooling of devices working in space and terrestrial applications using heat pipes and state-of-art of novel heat pipes wick designs;* Develop procedures for component selection, manufacturing, cleaning, assembly, evacuation and charging;* Equip the LHP laboratory with capabilities for fabrication and testing;* Tailoring of wick properties and construction of new wick profiles (e.g. non circular) leading to establish new high performance design of LHP;* Investigation of next generation of wicking materials and designs using advanced manufacturing method (e.g. selective laser melting/additive manufacture and micro-fibre wick sintering);* Characterisation of structure of novel wick material and measurement of porosity, permeability, pore radius, capillary height basing on bubble point test and/or imagining techniques;* Computational Fluid Dynamics (CFD) modelling of fluid flow through proposed wick structure;* Construction of novel heat exchanger on the basis of Loop Heat Pipe;* Testing the prototype of heat exchanger;* Identify key areas of concerns to be addressed through performance testing;* Develop a novel mathematical models to estimate working fluid properties, and calculate fluid inventory and compensation chamber sizing;* Develop a novel mathematical models that simulates a LHP properties;* Experimental verification of the data obtained during the LHP test and comparison them with the data from the literature;* Compare the test results with previous investigations regarding LHPs;* Compare the mathematical model with previous models available at the literature;* Writing a technical documentation of heat exchanger;* Writing a thesis;