Fuel cell system and method of heat recovery thereof
AssigneeNational Chiao Tung University
InventorsTsung-Lin CHEN, Chien-Chang WU
Life of this patent
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Abstract
The present invention provides a fuel cell system, and the fuel cell system comprises a fuel cell, an after burner, a heat exchanger and a reformer. The after burner connects with the fuel cell to receive rest-bar of the fuel cell and produce a gas with high temperature. The heat exchanger comprises a first heat exchanging unit and a second heat exchanging unit connected with the first heat exchanging unit, and the second heat exchanging unit connects with a fuel input pipe for receiving the fuel. The reformer connects with the after burner, the first heat exchanging unit and the second heat exchanging unit separately.
Claims10
A fuel cell system, comprising:
- a fuel cell;
- an after burner means for receiving a rest-bar of the fuel cell and producing a gas with high temperature, the after burner connecting with the fuel cell;
- a heat exchanger, the heat exchanger having a first heat exchanging unit and a second heat exchanging unit connected with the first heat exchanging unit, and the second heat exchanging unit connecting with a fuel input pipe for receiving the fuel;
- and
- a reformer, the reformer connecting with the after burner, the first heat exchanging unit and the second heat exchanging unit separately;
- wherein the gas with high temperature being orderly delivered to the reformer, the first heat exchanging unit and the second heat exchanging unit, the gas with high temperature being provided to the reformer, so that the reformer being able to reform an output fuel of the second heat exchanging unit as a necessary heat of a hydrogen-rich gas.
A heat recovery method of the fuel cell system, comprising:
- providing a fuel cell system, comprising
- a fuel cell;
- an after burner, the after burner connecting with the fuel cell to receive a rest-bar of the fuel cell and produce a gas with high temperature;
- a heat exchanger, the heat exchanger comprising a first heat exchanging unit and a second heat exchanging unit connected with the first heat exchanging unit, and the second heat exchanging unit connecting with a fuel input pipe for receiving a fuel;
- a reformer, the reformer connecting with the after burner, the first heat exchanging unit and the second heat exchanging unit separately;
- delivering the gas with high temperature to the reformer in order to provide a heat energy required for reforming the fuel to a hydrogen rich gas;
- delivering the gas with high temperature to the first heat exchanging unit;
- and
- delivering the gas with high temperature to the second heat exchanging unit from the first heat exchanging unit to conduct a heat exchange for the fuel.
Dependencies are inferred from the claim text.