Design and parametric study of a tubular passive micro direct methanol fuel cell

A tubular passive micro DMFC is designed to work in a special condition. The designed cell is a cylinder, anode channel is inside, cathode is outside and exposes to the air. When the overload exceeds the critical value, the liquid inside reserve tank will splash and comes into the two electrodes, and then the cell will be activated. The voltage, current density and work time of DMFC are calculated, and the DMFC performance of serpentine and parallel flow fields is analyzed preliminary. A current collector open ration of 70% is chosen in the design of the DMFC, and effect of the open ratio on the performance of the DMFC is analyzed simultaneously. Although there are many experimental works to do to testify its performance, it is true that the flow field simulation is authentic and the primary design is feasible compared to other references.