摘要:
Disclosed is a reformer for a fuel cell. The reformer for a fuel cell includes a reforming reactor generating reformed gas having abundant hydrogen gas by reforming fuel and steam and a standing shape of a water gas shift reactor coupled to the reforming reactor for lowering the concentration of carbon monoxide contained in the reformed gas. The water gas shift reactor has an opening. A pipe is coupled to the opening and has a portion located below the opening. Liquid water which may stay in the inside at the time that the operation stops can be drained out of the water gas shift reactor to prevent the water gas shift catalyst from being submerged in liquid water.
摘要:
An integrated circuit device includes a memory array having a multi-port memory cell (e.g., dual-port SRAM cell) therein. This multi-port memory cell includes at least first and second read/write ports, which may be provided by respective access transistors (e.g., N-type MOS transistors) that are responsive to word line signals. The first and second read/write ports are electrically coupled to the first and second bit lines, respectively. A first clipping circuit is also provided. The first clipping circuit is responsive to a first write control signal. The first clipping circuit is configured to bias the first bit line with a read blocking voltage during a first “overlapping” operation to write data from the second bit line into the multi-port memory cell concurrently with reading data from the multi-port memory cell onto the first bit line.
摘要:
A fuel reforming system and a fuel cell system including the same, the fuel reforming system including: a fuel reformer adapted to produce a reformed gas having hydrogen as a main component from a fuel containing hydrogen; a carbon monoxide (CO) remover adapted to remove carbon monoxide from the reformed gas; a heat source adapted to supply heat energy to the reformer and the CO remover; and a moving unit adapted to move the heat source between the fuel reformer and the CO remover. With this configuration, the fuel reformer and the CO remover can be directly heated by a heat source. Then, when the temperature of the CO remover reaches a catalyst activation temperature, the heat source can be moved to directly heat only the fuel reformer, thereby enhancing a reforming effect and a power generation efficiency of the fuel reforming system.
摘要:
A barrel module and an imaging apparatus including the same. The barrel module includes: a base having a surface on which an image pickup device is disposed; a lens barrel disposed on the base; a driver for providing driving power to move the lens barrel up and down over the base; a clip connected to the driver to be disposed between the driver and the lens barrel; and an elastic member for providing elasticity between the lens barrel and the clip, wherein the lens barrel moves from an original position toward the base according to an external force is applied, and when the external force is removed, the lens barrel goes back to the original location due to the elasticity of the elastic member.
摘要:
A power gating circuit of a memory device includes a power gating unit and a control unit. The power gating unit includes first, second, and third power gating transistors connected in parallel between a power supply voltage and an internal power supply voltage bus of the memory device. The three power gating transistors are sequentially turned ON. The second and third power gating transistors turn ON sequentially in response to the increasing voltage level of the bus. The timing points when the second and third power gating transistors are sequentially turned ON is based upon detecting the gradually increasing the voltage level of the internal power supply voltage. The size of the first power gating transistor may be smaller than the size of the second power gating transistor, and the size of the second power gating transistor may be smaller than the size of the third power gating transistor.
摘要:
A method of driving a heating unit for a fuel cell reformer, a reformer applied with the method for driving the heating unit, and/or a fuel cell system including the reformer. The method includes: supplying an oxidant to the heating unit and absorbing the oxidant by a fuel oxidizing catalyst of the heating unit; supplying a fuel at an excessive amount to the heating unit and absorbing the fuel by the fuel oxidizing catalyst of the heating unit; and supplying the fuel and the oxidant to the heating unit at a stoichiometric ratio of the fuel to the oxidant ranging from 1:1 to 2:1, wherein the heating unit generates heat through an oxidizing catalyst reaction between the fuel and the oxidant.
摘要:
A fuel oxidizing catalyst, a method of preparing the same, and a reformer and a fuel cell system including the same. In one embodiment, the fuel oxidizing catalyst for a fuel cell includes CeO2, MO (wherein M is a transition metal), and CuO. In this embodiment, the fuel oxidizing catalyst has a relatively high (or excellent) catalytic activity for a fuel oxidizing catalyst reaction and performs a fuel oxidizing catalyst reaction at a relatively low temperature even though it does not include a noble metal.
摘要:
The carbon monoxide oxidizing catalyst for a reformer of a fuel cell system according to the present invention includes an active material including Au—Ag alloy nano-particles, and a carrier supporting the active material.
摘要:
The reformer for a fuel cell system includes a reforming reaction part that generates hydrogen gas from a fuel through a catalyst reforming reaction using heat energy, and a carbon monoxide reducing part that reduces the concentration of carbon monoxide in the hydrogen gas, through an oxidizing reaction of hydrogen gas with the oxidant. The carbon monoxide reducing part includes a first reducing part including a first carbon monoxide oxidizing catalyst and a second reducing part including a second carbon monoxide oxidizing catalyst.
摘要:
A fuel reforming apparatus including reaction substrates is provided. The reaction substrates of the present invention is made of stainless steel, nickel steel, or chromium steel. Each of the reaction substrates has a channel formed on the surface of the reaction substrate. Reactant for oxidation reaction or for fuel reforming reaction flow through the channel. A catalyst containing layer is formed on the surface of the channel by directly oxidizing the surface of the channel. Therefore, the catalyst containing layer is formed with oxidized steel. A catalyst layer is formed on the catalyst containing layer. A pair of substrates can be laminated to make one substrate a thermal source unit and another a reforming reaction unit.