Heat Transfer Simulation And Thermal Control Study Of Hydrogen Storage System In Metal Hydride On Vehicle

As a clean energy, hydrogen fuel has great potential for development. Engines or fuel-cells using hydrogen fuel can provide excellent power output for vehicles. At the same time, hydrogen fuel is environment friendly and renewable. But the ways to store and purify hydrogen restrict its using on vehicle whether in hydrogen engines or hydrogen fuel-cells. However, hydrogen adsorbing alloy can settle all that problems. Further more it don't need high-pressure, low-temperature, and have no hydrogen evaporation or leak. Using hydrogen adsorbing alloy is safer on vehicle. Thus, it is significant to study hydrogen adsorbing in alloys for hydrogen feul vehicles practicability.On the process of desorbing hydrogen, because metal hydride materials adsorb a lot of heat to break chemical bones to desorb hydrogen, its temperature decreases. Then the pressure of hydrogen, the dynamics of hydrogen flow both decrease, impactting the hydrogen supply. In order to satisfy the vehicle's need, the temperature of metal hydride materials have to be known at any moment. And control the process of desorbing hydrogen by heat flux based on the change of materials'temperature and the state of vehicle.In order to know the temperature of the metal hydride materials, wrote a metal hydride material heat transfer 3D simulation software. By simulating hydrogen desorption process, this soft can calculate the temperature field, the hydrogen pressure, heat-absorbing and so on. Based on all that simulation results, the heat control can be built to control hydrogen desorption process.This soft, writing by C language, is according to the basic principles of numerical heat transfer. User can simulate the specified hydrogen desorption process by the friendly graphic user interface. Compared with other business software, this soft is more suitable for hydrogen absorbing alloy system heat control, by its commonality and effectiveness. What's more, check this soft result by compared it with the business software result.In order to offer the proper, effective hearting structure, this thesis uses FLUENT simulating some kinds of heat structures, and also analyses them. Finally, this thesis simulates the hydrogen desorption process in some different situations to analyzing the heat control strategy by metal hydride material heat transfer 3D simulation software.