含纳米弥散体复合介质热辐射特性分析

项目名称： 含纳米弥散体复合介质热辐射特性分析

项目编号： No.51476078

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 能源与动力工程

项目作者： 李佳玉

作者单位： 南京理工大学

项目金额： 80万元

中文摘要： 含纳米弥散体复合介质对入射辐射的电磁响应是新能源利用等很多领域中所共有的物理过程。本项目将以此过程为研究对象，研究该类型复合介质与电磁波相互作用的物理机理，分析可能会对含纳米弥散体复合介质辐射响应产生影响的相关因素，基于相关理论，建立相应的数学物理模型，模型中考虑到介质的结构特征、弥散体与基体介质等影响因素；结合复合介质的结构特征建立其辐射吸收产热及温度场模型，计算辐照条件下该类型介质对入射电磁波的辐射吸收产热量及温度场分布，通过模拟计算为该类材料的实验研究提供参考和理论依据；同时本项目拟针对具体情况采用合适的微纳米制备技术制备该类型的复合介质，调控弥散体的结构及其在基体介质中的分布状态,测试复合介质的辐射传递特性及其内部辐射吸收产热分布，并由介质的辐射特性反演其等效光学参数，将理论结果与实验结论进行比较，分析模型的适用情况。最后结合不同应用背景需求，优化设计相应的结构参数。

中文关键词： 热辐射特性；辐射吸收；纳米弥散体；复合介质；产热

英文摘要： The electromagnetic response of composites with dispersed nanoparticle to incident wave is a common physical process in many fields, such as the application of new energy. This project will investigate this process, the physical mechanism of the interaction between the composite and incident wave will be studied, and the possible factors that would influence this process will be analyzed, then the mathematical physics model will be constructed based on some related theories, where the influences of composite's structure, dispersed nanoparticle and host media will be considered.The model that calculate the distribution of radiant absorption, heat generation and temperature field will be built by considering the nano structure of the composite.The calculated results will be beneficial to experimental study of the project. Suitable micro-nano technology will be chosen for the preparation of the composite with dispersed nanoparticle, then dispersed nanoparticle's structure and their distribution in host media will be controlled. The radiative properties and heat generation from the incident wave for these composites will be measured, and the effective optical constants will be inversed from the radiative properties. The results calculated from the model will be compared with those from experimental study, and the application domain of the model will be analyed.The parameters that discribe the nano structure of the composite will be optimized by considering the corresponding application.

英文关键词： thermal radiative property;radiant absorption;dispersed nanoparticle;composite;heat generation