摘要:
An apparatus to control a swelling of a catalyst coated membrane in a fuel cell includes an insulator layer provided at a perimeter of the fuel cell. The insulator layer has a plurality of insulator films and is secured to a flow field plate. The insulator layer has a less compressibility relative to a gasket used in the fuel cell. A method for controlling a swelling of a catalyst coated membrane in a fuel cell includes providing an insulator layer at a perimeter of each of fuel cells in a fuel cell stack. The fuel cell stack is compressed for a predetermined duration when the catalyst coated membrane is in a substantially dry state. Passage of fuel is allowed inside the fuel cell thereby facilitating the catalyst coated membrane to swell. A swollen catalyst coated membrane is allowed to contact the insulator layer.
摘要:
An apparatus for fuel cell stacking includes an assembly jig having a base; an alignment assembly configured to be engaged with the base; and a compression assembly configured to be engaged with the alignment assembly.
摘要:
An apparatus for fuel cell stacking includes an assembly jig having a base; an alignment assembly configured to be engaged with the base; and a compression assembly configured to be engaged with the alignment assembly.
摘要:
A direct methanol fuel cell integrated process assembly is provided. The assembly includes a housing, a fuel mixing/surge tank and an air/liquid separator integrated to the housing. A vent of the mixer/surge tank is at least proximal to a vent of the separator. The housing further includes at least one condensation pathway integrated along the housing, where the pathway enables exhaust condensates to return to the assembly. At least one exhaust port is provided, which vents directly to a cooling airstream to facilitate exhaust removal. A manifold is also provided, with the fuel valve, a water valve, a fuel pump and a water pump integrated with the housing, where the integrated process assembly reduces an amount of plumbing between the a liquid volume in the mixer and the separator. Further, a water volume of the process assembly is reduced and a form factor of the process assembly is also reduced.
摘要:
A concentration sensor assembly for measuring a concentration of a aqueous hydrocarbon fuel to be supplied to a fuel cell stack, the assembly including a membrane electrode assembly having an anode, a cathode and an electrolyte membrane located between the anode and the cathode; a first monopolar flow field plate provided near the anode; a second monopolar flow field plate provided near the cathode; and a liquid gas separator.
摘要:
A method of determining the vertices of a character in a two-dimensional barcode symbol image includes tracing a contour around a character. The contour is examined and pixels therealong believed to be vertices of the character are determined. The relative positions of the determined pixels are compared to determine if they satisfy a threshold. If the relative positions of the determined pixels satisfy the threshold, the determined pixels are designated as the vertices of the character. If the relative positions of the determined pixels satisfy the threshold, the determined pixels are designated as the vertices of the character. If the relative positions of the determined pixels do not satisfy the threshold, new pixels along the contour are selected using geometric relationships between the determined pixels to replace determined pixels that are not vertices of the character.