Optimum operating strategies for liquid-fed direct methanol fuel cells

Modern Applied Science, Vol. 3, No. 8, August 2009, all in one file

“…-A solid polymer electrolyte is used in these kinds of fuel cells (FCs), -Their operational temperature is relatively low, and -Their fuel is low cost and has high energy density (Jeong et al, 2008).…”

“…where, k c and ka are rate constant of anodic and cathodic reactions respectively, CL Extended studies about abovementioned relations and expressions can be found in (Jeong, 2008;Guo,2004;Sundmacher et al, 2001).…”

Using Maximum Power Capability of Fuel Cell in Direct Methanol Fuel Cell / Battery Hybrid Power System

“…Rate of methanol oxidation reaction at anode catalyst layer, r a , and oxygen reduction at cathode catalyst layer, r c , can be expressed as: Extended studies about abovementioned relations and expressions can be found in (Jeong, 2008;Guo,2004;Sundmacher et al, 2001). …”

“…DMFC is one of the newest electric power sources, which become increasingly more attractive subject for many researchers because: -A solid polymer electrolyte is used in these kinds of fuel cells (FCs), -Their operational temperature is relatively low, and -Their fuel is low cost and has high energy density (Jeong et al, 2008).…”

“…A large number of internal parameters can impact on produced voltage of DMFC (Jeong et al, 2008;Guo et al, 2004;Sundmacher et al, 2001), but in any condition, there is just one unique point on V-I curve which represents MPP. In this point, DMFC can produce its maximum power.…”