Modelling of polymeric membrane used in proton exchange membrane fuel cells

After the industrial era, due to excessively increasing population and demand occuring energy exposure had been tried to be destroyed by using fossil fuels, however this situation had engrafted the world to a dead end. Tended extinction of fossil fuels and extreme ecological pollution had made people to head for new energy solutions. With renewable energy it has been looked around for preventing ecological pollution as well as finding for an alternative for fossil fuels. While hydrogen is one of the futuristic alternative energy, fuel cell technology which can produce electric from hydrogen is also a renewable, clean and high efficiency energy solution which is approved by majority. For producing electricity polimer electrolyte membrane (PEM) fuel cells which is using the hydrogen from electrochemical are been tried to develop especially used in transportation as an internal combustion engine. PEM fuel cells are upcoming manufacturing devices due to enviroment friendliness, high productivity, usage in low temperatures, working noiseless, however fuel cells are not used for commercial design yet because of some deficiencies. First of all the most essential factor is the membrane of PEM fuel cell's main course does not endure to the optimum life time, indicates mechanical and chemical damages in high temperatures and humidity. Due to these reasons membrane electrolyte is tried to be developed.In this study, while considering the working conditions of membrane in fuel cells which is the main component of proton exchange membrane fuel cells, through membrane materials by using Nafion 112; tensile test, DTA-TG experiment and air conditioning experiments were been made and then the samples taken from air conditioning device had been observed by (SEM) Scanning Electron Microscope and damages on those samples had been determined. Information acquired within the literature in modelling studies which had been totally observed the behaviour of polimeric material hadn?t been reflected to the actual model and by considering this deficiency the modelling studies had been implemented. By using the solutions from these experimental studies in this content it had been obtained the solution denoted viscoelastic-viscoplastic behaviour.The tensile behaviour of Nafion had been modelled through membrane materials in room temperature and disctinct high temperatures as widespread by using one of the viscoplasticity theories which is 'Viscoplasticity Theory Based On Overstress (VBO)? by using acquired datas from the experimental studies. Simulation results had been compared, quite harmonic results had been acquired.