摘要:
In a fuel cell, a fuel cell stack for high temperature comprises: a main body of the fuel cell having an electrolyte membrane, and an anode electrode and a cathode electrode bonded to both sides of the electrolyte membrane for generating electric energy by electro-chemically reacting fuel supplied to the anode electrode and oxidizer supplied to the cathode electrode; and a heater having a chamber attached to the main body of the fuel cell and an oxidation catalyst installed inside the chamber. The heater generates heat by oxidizing fuel supplied to the inside of the chamber, and heats the main body of the fuel cell with the generated heat. According to the present invention, it is possible to significantly reduce the starting time of the main body of the fuel cell, and to easily control a starting temperature of the main body of the fuel cell.
摘要:
A fuel cell system includes a fuel cell stack, a reformer which generates a reformed gas through a reforming reaction between a gaseous fuel and water and supplies the reformed gas to the fuel cell stack, a fuel tank which compresses the gaseous fuel, stores the compressed fuel in an at least a partially liquid phase, and supplies the gaseous fuel to the reformer, a water tank connected to the fuel tank and the reformer to store water and to supply the water to the reformer by an internal air pressure of the fuel tank, and a first valve installed in a connection line connecting the water tank to the fuel tank to selectively open or close the connection line according to an electrical on/off pulse signal.
摘要:
A fuel cell system includes a fuel cell stack, a reformer which generates a reformed gas through a reforming reaction between a gaseous fuel and water and supplies the reformed gas to the fuel cell stack, a fuel tank which compresses the gaseous fuel, stores the compressed fuel in an at least a partially liquid phase, and supplies the gaseous fuel to the reformer, a water tank connected to the fuel tank and the reformer to store water and to supply the water to the reformer by an internal air pressure of the fuel tank, and a first valve installed in a connection line connecting the water tank to the fuel tank to selectively open or close the connection line according to an electrical on/off pulse signal.
摘要:
A fuel cell stack includes a body that includes electrical generators and a device that is electrically connected to the electrical generators to measure an electrical output from the electrical generators. The device includes a base substrate that is fixed to the body and terminal members that are formed on the base substrate and electrically connected to the electrical generators.
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.
摘要:
A fuel reforming apparatus which generates a reformed gas containing hydrogen by reforming a fuel and supplies the reformed gas to a fuel cell body is provided. The fuel reforming apparatus is constructed with a burner which generates a flame by burning the fuel together with the atmospheric air, a reforming reactor which receives thermal energy of the flame and generates the reformed gas through a reforming reaction between the fuel and steam, an evaporator in which a pipeline for allowing the fuel and water to flow is disposed in the direction of the flame sprayed from the burner, with the water being evaporated by using the flame and the fuel and steam being supplied to the reforming reactor, and a spraying unit which is disposed in a direction of the sprayed flame to spray additional air into the evaporator.
摘要:
A carbon monoxide oxidizing catalyst for a reformer of a fuel cell system comprises: a compound including selenium oxide, tellurium oxide, bismuth oxide, or a combination thereof; copper oxide; and cesium oxide.
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.