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

该项目旨在全面了解和改进LHP技术，并设计和开发几个用于测试的功能单元。制造新型LHP设计的目的是展示该技术在许多热控应用中的可靠性和灵活性，特别是在空间、航空航天、医疗/测试设备和卫星部门运行的设备。每个单元的测试结果将被用作开发更小、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；*全面审查利用热管冷却在空间和地面应用中工作的设备的被动系统，以及最新的热管灯芯设计；*制定部件选择、制造、清洁、组装、疏散和充电的程序；*使LHP实验室具备制造和测试能力；*调整灯芯特性和构造新的灯芯型材(例如非圆形)，从而建立LHP新的高性能设计；*利用先进的制造方法(例如选择性激光熔化/添加剂制造和微纤维芯管烧结)研究下一代灯芯材料和设计；*表征新型灯芯材料的结构，并基于泡点测试和/或想象技术测量孔隙率、渗透率、孔隙半径、毛细管高度；*对拟议的灯芯结构中的流体流动进行计算流体动力学(CFD)建模；*基于环形热管建造新型热交换器；*测试热交换器的原型；*通过性能测试确定需要解决的主要问题；*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大小；*开发一种模拟低热泵性能的新的数学模型；*对低热泵测试过程中获得的数据进行实验验证，并将它们与文献中的数据进行比较；*将测试结果与以前关于低热泵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;