Reliability Analysis Of Fuel Cell Engine Reactor

Proton exchange membrane fuel cell(PEMFC),as a battery energy,compared with other types of batteries,they have obvious advantages in working environment.As energy,it has obvious advantages over traditional energy,such as low pollution and so on.It’s been gradually taken seriously in the field of energy recently.But as a potential alternative to fossil fuels,it is very important to work safely and steadily.Therefore,it is very important to study the reliability of PEMFC.In this paper,the reliability of a certain 60KW fuel cell is studied.In this paper,the reliability of PEMFC is analyzed based on fault tree and mathematical model.Different kinds of new energy batteries are introduced,and the working principle and classification of fuel cells are introduced.The reliability of membrane,electrode and bipolar plate in fuel cell is discussed respectively.The assembly and sealing reliability,operation reliability and control system reliability of fuel cell are introduced.The fault tree model of stack failure is established,and qualitative and quantitative analysis of the model,the probability importance and key importance of the minimum cut set and the minimum cut set are obtained.The microphysical model,diffusion model,hydraulic model and joint model are established for proton exchange membrane modeling.The mass and component conservation equations,energy conservation equations,proton transport equations and water activity equations are established for the proton exchange membrane.The proton exchange membrane was simulated by matlab.The gas diffusion layer,catalyst layer and flow field plate are also modeled.Finally,the pretightening force of bolt is modeled,and the optimal preload is calculated by matlab simulation,and the result is verified.