Development And Application Of Performance Testing Device For Hydrogen Storage Material Based On LabVIEW

In the face of increasingly severe energy depletion and environmental pollution, people committed to the searching for clean energy all the time, such as wind energy, solar energy etc. The hydrogen, which has the prospects for development and it has the characteristics of reserve quantity, easy preparation and no pollution, will be gradually applied to people’s lives. At the same time, deuterium and tritium can also be used in nuclear reactor. How to storage and transport the hydrogen safety is a very difficult problem that the people faced. But with the advent of the hydrogen storage materials, the problems have been solved to a certain extent. The problem, which in front of the developed. In order to solve the problem, we based ideas on the comprehension of researchers, is how to know the properties of the hydrogen storage materials that they testing equipment both at home and abroad, and developed the hydrogen circulation testing apparatus that based on the LabVIEW. It can obtain the performance parameters of hydrogen storage materials and develop the new hydrogen storage materials that has the characteristics of extensive sources, low cost and so on. At the same time, it can make a theoretical guidance for the hydrogen storage materials applied to real life, such as nickel metal hydride batteries, etc. In addition, it is beneficial to the development of China’s nuclear industry and national defense industry.Firstly, This paper introduces the basic principles and structure of absorption-desorption hydrogen cycle testing device. In order to improve the development efficiency, we using the software of Solidworks design and assemble the 3D virtual apparatus. The apparatus belongs to the type of full metal which can prevent hydrogen isotope irradiation effectively for a long time caused the leakage. Then to built the device and debug it. Through the results of the device leakage rate compared with related literature at home and abroad indicates that, the system has good air tightness and can meet the requirements of the follow-up testing. Based on the understanding of testing process, method and content of the hydrogen storage materials, we achieved the functions of data acquisition, data storage, processing and outputting test curves, and completed the automatic testing of absorption-desorption cycle kinetic curve, PCT curve and TPD curve of the hydrogen storage materials through the LabVIEW software. So developing sets of programs of friendly user interface testing system software is important, and this may promote the research and development of hydrogen storage materials in China.In order to verify the performance of the apparatus and the correctness of the testing program, we weighed a certain quality of the hydrogen storage alloy of LaNis and LaNi4.25Al0.75, and tested the kinetic curve, PCT curve and TPD curve etc. The results of the experiments indicate that the testing data is correct and the programs are running normally by comparing with the foreign literature. This testing equipment can complete the testing and output the testing data automatically, so it has a higher degree of automation at a certain extent.To study the influence factors of the PCT curve, such as leak, reaction time, volume error, temperature error and sample dosage etc. Why to study the effects on the PCT curve is that when the measured PCT curve is abnormal, we are able to quickly find out the reasons and solve the problem effectively. For example, if the system leaked, the PCT curve that measured is not closed and it will be greater as the amount of leakage increasing. Finally, in order to assess quality of measurement and improve the performance evaluation of the hydrogen absorption-desorption cycle testing equipment, we evaluated the measurement uncertainty of the testing apparatus.