US 7,563,527 B2
Fuel cell-atmospheric-pressure turbine hybrid system
Kazuo Tanaka, Kobe (Japan); Eiichi Harada, Kakogawa (Japan); Takatoshi Shoji, Kobe (Japan); Junichi Kitajima, Akashi (Japan); and Seiji Yamashita, Kobe (Japan)
Assigned to Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi (Japan)
Appl. No. 10/553,692
PCT Filed Jun. 29, 2004, PCT No. PCT/JP2004/009130
§ 371(c)(1), (2), (4) Date Oct. 18, 2005,
PCT Pub. No. WO2005/001974, PCT Pub. Date Jan. 06, 2005.
Claims priority of application No. 2003-186933 (JP), filed on Jun. 30, 2003; and application No. 2004-062096 (JP), filed on Mar. 05, 2004.
Prior Publication US 2006/0222919 A1, Oct. 05, 2006
Int. Cl. H01M 8/04 (2006.01)
U.S. Cl. 429—22  [429/26] 11 Claims
OG exemplary drawing
 
1. A fuel cell-atmospheric-pressure turbine hybrid system comprising:
a combustor configured to burn a cell exhaust gas discharged from an atmospheric-pressure, high-temperature fuel cell, the atmospheric-pressure, high-temperature fuel cell to which an atmospheric pressure air and an atmospheric pressure fuel are supplied at an atmospheric pressure and from which the cell exhaust gas is discharged at the atmospheric pressure;
a turbine in which a combustion gas discharged at the atmospheric pressure from the combustor expands and the pressure of the combustion gas drops to a negative pressure lower than the atmospheric pressure, the turbine being configured to discharge a turbine exhaust gas at the negative pressure;
a compressor configured to compress the turbine exhaust gas discharged from the turbine to increase the pressure of the turbine exhaust gas to the atmospheric pressure and to discharge a compressor exhaust gas at the atmospheric pressure; and
a heat exchanger configured to transfer heat from the turbine temperature exhaust gas discharged from the turbine to the atmospheric pressure air to be supplied to the fuel cell;
an evaporator capable of recovering heat from the turbine exhaust gas discharged from the turbine and generating steam by the recovered heat; and
a reforming device configured to reform the atmospheric pressure fuel by using steam generated by the evaporator and to supply the reformed fuel to the fuel cell.