Systematic approach for modeling methanol mass transport on the anode side of direct methanol fuel cells

Comprehensive mass transport modeling technique for the cathode side of an open-cathode direct methanol fuel cell

“…A model for calculating the concentration c ACL CH 3 OH appearing in Equation (59) is given in Ref. [41]. Furthermore, the anode exchange current density appearing in Equation (59) can be expressed as [31] …”

“…Consistent with prior work carried out in our laboratory facilities [41,54,55], the independently manipulated operating variables are the following: the methanol feed concentration at the anode fuel inlet, the anode fuel flow rate, the operating temperature, and the load current density. These experimental factors are adjusted as shown in Table 4.…”

“…The air flow rate in the cathode flow channels is adjusted using a controller to maintain the operating cell temperature at a specified set point. Further details of the setup are given in the literature [41,54,55].…”

“…Finally, the fourth column shows the methanol concentration in the anode catalyst layer obtained using the modeling prescriptions given in Ref. [41].…”

Study on Two-Phase Flow and Temperature Characteristics of Direct Methanol Fuel Cells

“…Wong et al [6] visually studied an in-house fabricated micro DMFC with various-sized micro single serpentine channels down to 400.0 μm and demonstrated that the CO 2 bubble behavior depended on the channel width. The study of mass transport in the anode has mainly been focused on flow field geometry, the flow field design and the operating conditions [5][6][7][8][9][10][11][12]. However, there are few combination of research on two-phase flow and its temperature characteristics.…”