| Patent application number | Description | Published |
|---|
| 20090104487 | FUEL CELL SYSTEM INCLUDING FUEL PROCESSOR AND MANAGING METHOD THEREOF - A fuel cell system including a fuel processor, and a method of operating the fuel cell system, the fuel cell system includes: a reformer that reforms a hydrocarbon group fuel source into a reformed gas; a burner that heats the reformer; a CO remover unit that removes CO from a reformed gas generated by the reformer; a stack to generate electricity using the reformed gas; a first burner fuel supply line to supply the hydrocarbon group fuel source to the burner; and a second burner fuel supply line to supply the reformed gas from the CO remover unit to the burner. | 04-23-2009 |
| 20090186246 | Fuel cell and control method thereof - Disclosed herein are a fuel cell and a method for controlling the fuel cell. The fuel cell includes a reforming apparatus to perform reformation reactions and thereby to produce a fuel gas and a heat by-product, a stack to receive the fuel gas from the reforming apparatus and thereby to generate energy, a preheating unit to heat the stack and thereby to promote the operation of the stack, and an operation control unit to supply at least one of the fuel gas and heat by-product to the preheating unit during an initial operation of the reforming apparatus, and to supply the fuel gas to the stack upon the completion of the initial operation of the reforming apparatus. According to the fuel cell, it is possible to rapidly elevate an internal temperature of the fuel cell in an economical manner until the fuel cell initially operation and then enables normal operation. | 07-23-2009 |
| 20090269631 | Fuel cell system and control method thereof - Disclosed is a method of controlling a fuel cell system including a fuel processor to generate reforming gas and a stack to generate energy by receiving the reforming gas from the fuel processor. The method includes performing an initial operation, in which the fuel processor is operated to generate thermal energy heating, a heat medium is heated by the thermal energy generated from the fuel processor, and raising a temperature of the stack to a normal operation temperature by the heat medium having a high temperature, and performing a normal operation, in which the reforming gas is supplied to the stack after the temperature of the stack has reached the normal operation temperature. The stack temperature is raised until the stack is normally operated by heating the stack through the circulation of a heat medium heated by heat generated from a fuel processor. | 10-29-2009 |
| 20100062291 | Fuel cell system and fuel supply method thereof - A stable fuel supply system in a fuel cell system produces heat and electricity by combining hydrogen modified from a major raw material selected from various hydrogen compounds, with oxygen existing in air. A fuel supply device and a fuel supply method in a fuel cell system, which automate a steam to carbon ratio (S/C) control and a lamda control, and achieve a fuel cell system operation efficiently and stably coping with pressure loss and pulsation occurring within the system, while using a minimum number of balance-of-plant (BOP) units. A method more efficiently and precisely supplies fuel during the start-up and operation of the fuel cell system, while preventing flame failure of a burner and maintaining an appropriate carbon monoxide concentration even when an abrupt flow rate variation occurs. Also, an operating method improves functions associated with a decomposition ability based on selection of the specification of a fuel pump, and thus, is more economical and stable in terms of the costs and configuration of the fuel cell system. | 03-11-2010 |
| 20100062295 | Fuel cell system and air supply method thereof - A stable air supply system in a fuel cell system produces heat and electricity by combining hydrogen modified from a major raw material selected from various hydrogen compounds, with oxygen existing in air. An air supply device and an air supply method in a fuel cell system, automate a lamda control, and achieve a fuel cell system operation efficiently and stably coping with pressure loss and pulsation occurring within the system, while using a minimum number of balance-of-plant (BOP) units. A method efficiently and precisely supplies air during the start-up and operation of the fuel cell system, while preventing flame failure of a burner and maintaining an appropriate carbon monoxide concentration even when an abrupt flow rate variation occurs. In this regard, an operating method is economical and stable in terms of the costs and configuration of the fuel cell system. | 03-11-2010 |
| 20100143756 | CONNECTING APPARATUS IN FUEL CELL SYSTEM AND FUEL CELL SYSTEM INCLUDING THE CONNECTING APPARATUS - A connecting apparatus in a fuel cell system and a fuel cell system including the connecting apparatus include a pipe module and a controller controlling the operation of the pipe module. The pipe module includes a first valve connecting a fuel processor and an anode of a stack, a second valve connecting an automatic drain and a heat exchanger, and a check valve connecting the anode of the stack and the heat exchanger. | 06-10-2010 |
| 20100167097 | HEAT RECOVERY METHOD AND APPARATUS IN FUEL CELL SYSTEM, AND FUEL CELL SYSTEM INCLUDING THE APPARATUS - A fuel cell heat recovery system and method, the heat recovery method including: closing a proportionate valve to control water flow to a second heat exchanger that recovers heat from an electric heater that uses surplus power of the fuel cell system, if the fuel cell system is completely activated; opening an electronic valve to control water flow to a first heat exchanger that recovers heat from cooling water discharged from a stack of the fuel cell system; and supplying a predetermined amount of water to the first heat exchanger. | 07-01-2010 |
| 20110143231 | INTEGRATED PIPING MODULE IN FUEL CELL SYSTEM - An integrated piping module to connect a fuel cell and a fuel processor, the integrated piping module including: tanks to collect heat emitted from a reformate gas generated by the fuel processor, heat emitted from air discharged from the fuel cell, and water condensed from the reformate gas and/or the discharged air; pipes to heat and cool the reformate gas, and to remove the water from the tanks. | 06-16-2011 |
| 20110151344 | METHOD OF CONTROLLING FUEL CELL SYSTEM - A method of controlling a fuel cell system, the method involving: controlling the power output of the fuel cell system and an amount of a fuel that is supplied to the fuel cell system, so as to increase a fuel utilization rate of a fuel cell, according to variations of the power output of the fuel cell system. | 06-23-2011 |
