The Efficacy of Novel Designs on the Proficiency of Polymer Exchange Membrane Fuel Cell | ||
| AUT Journal of Mechanical Engineering | ||
| مقاله 4، دوره 4، شماره 3، پاییز 2020، صفحه 331-346 اصل مقاله (2.52 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/ajme.2020.16416.5817 | ||
| نویسندگان | ||
| Ali Sheikhmohamadi1؛ Iraj Mirzaee2؛ Nader Pourmahmoud3؛ Nima Ahmadi* 4 | ||
| 1PhD student, Mechanical Engineering Department, Urmia University, Urmia, Iran | ||
| 2دانشگاه ارومیه*دانشکده فنی و مهندسی | ||
| 3Professor, Mechanical Engineering Department, Urmia University, Urmia, Iran | ||
| 4Mechanical Engineering, Urmia University of Technology, Urmia, Iran | ||
| چکیده | ||
| Numerical simulation is extensively used in the many industries to investigate transport phenomena inside channels with variant dimensions to save time and cost. In this paper, novel designs for cylindrical polymer fuel cell in the numerical and three-dimensional form are presented. In the simulation of these models, finite volume method is used. Thereafter, novel designs are used to increase the proficiency of polymer electrolyte fuel cell. In this study at first, the effect of semi-circular prominent gas diffusion layers is studied. By locating these prominences on gas diffusion layers, this fact is observed that the performance of fuel cell is enhanced in same condition. However, the optimum size of the prominences is also investigated in the present work. By reaching the magnitude of the radius to 0.55 mm, the flow velocity exceeds the desired magnitude. By this way the diffusion of species impressed negatively. Then, the effect of gradual changes in cross-section, the geometrical configuration of cell parts on species diffusion, the output current density is put under careful study. The results displayed the optimal performance is belong to the cylindrical fuel cell with elliptical cross-section. Wider transport region and lower drop quantity in identical volume for reactive gases to pass to the reactive domain are the reasons for optimal function. | ||
| کلیدواژهها | ||
| Polymer fuel cell؛ Finite volume method؛ Species؛ Computational fluid dynamics؛ Simulation | ||
| مراجع | ||
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