掌握NaK-BASE管内传热传质机理并实现该过程的真正优化，以提高NaK-AMTEC电输出性能，开展相关研究具有重要科学意义和实用价值。 本项目拟在微观传热传质学、电化学及微电子学范畴内，探索发展不同显微结构NaK-BASE管内传热传质的多孔数理模型，阐释Na+和K+在NaK-BASE管内热质传递机制；采用CT及其他相关测试技术获得NaK-BASE管内显微结构与物性参数的定量关系，以（火积）耗散极值原理为指导构建Na+和K+在NaK-BASE管内热质传递过程（火积）传递方程，筛选出能强化传热传质的NaK-BASE管；建立NaK-AMTEC电输出性能测试平台，测试采用具有不同优选显微结构NaK-BASE管时NaK-AMTEC的时间-电输出特性及热电转换效率，确定最佳结构NaK-BASE管，达到有效降低NaK-AMTEC电输出功率衰退并切实提高NaK-AMTEC热电转换效率的目的。

To grasp the heat and mass transfer mechanism in the NaK-BASE tube, and to optimize the process for increasing the electrical output performance of NaK-AMTEC, the studies carried out on the above-mentioned contents are very important scientifically and practically. In the scope of microscopic heat and mass transfer, electrochemistry and microelectronics, th mathematical equations for the porous heat and mass transfer in NaK-BASE tube with different microstructures are explored and developed to explain the process of the heat and mass transfer of Na+ and K+ in the NaK-BASE tube. The quantitative relationship between the microstructures and physical parameters of the NaK-BASE tube is obtained by the CT and other relevant testing techniques. In order to screen out the NaK-BASE tube which can enhance heat and mass transfer, the entransy transfer equation for the heat and mass transfer of Na+ and K+ in the NaK-BASE tube is established according to entransy dissipation extreme principle. The testing platform for the NaK-AMTEC electrical output performance established, and the time-electrical output performance and thermal-to-electric converting efficiency of the NaK-AMTEC are tested with preferred microstructures NaK-BASE tubes, to determine the NaK-BASE tube with optimum microstructures and to meet the purpose of lowering the electrical output power recession and improving the thermal-to-electric converting efficiency of NaK-AMTEC.