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使用的可靠性和灵活性，特别是在太空、航空航天、医疗/测试设备和卫星领域运行的设备。测试每个单元的结果将被用作开发更小和更有效的设计的垫脚石。这些活动被认为是为了实现上述目标：* 制定一套设计要求;* 全面审查利用热管和最先进的新型热管芯设计对空间和地面应用中的设备进行冷却的被动系统;* 制定部件选择、制造、清洁、组装、排空和充电程序;* 为LHP实验室配备制造和测试能力;* 定制灯芯特性和建造新的灯芯轮廓（例如，非圆形）导致建立LHP的新的高性能设计;* 采用先进制造方法研究新一代芯吸材料和设计（例如选择性激光熔化/增材制造和微纤维芯烧结）;* 根据泡点测试和/或成像技术表征新型吸液芯材料的结构并测量孔隙率、渗透率、孔隙半径、毛细管高度;* 基于回路热管构造新型热交换器;* 测试热交换器的原型;* 通过性能测试确定要解决的关键问题;* 开发新型数学模型以估计工作流体特性，并计算流体存量和补偿室尺寸;* 开发模拟LHP特性的新型数学模型;* 对LHP测试期间获得的数据进行实验验证，并将其与文献中的数据进行比较;* 将测试结果与先前关于LHP的研究进行比较;* 将数学模型与文献中可用的先前模型进行比较;* 编写热交换器的技术文档;* 撰写论文;

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;