公开(公告)号：CA1126806A

公开(公告)日：1982-06-29

申请号：CA337108

申请日：1979-10-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： REISER CARL A ,  LANDAU MICHAEL B

IPC: H01M8/04 ,  H01M8/24

Abstract: METHOD FOR REDUCING FUEL CELL OUTPUT VOLTAGE TO PERMIT LOW POWER OPERATION Fuel cell performance is degraded by recycling a portion of the cathode exhaust through the cells and, if necessary, also reducing the total air flow to the cells for the purpose of permitting operation below a power level which would otherwise result in excessive voltage.

公开(公告)号：CA1043860A

公开(公告)日：1978-12-05

申请号：CA244682

申请日：1976-01-27

Applicant: UNITED TECHNOLOGIES CORP

Inventor： LANDAU MICHAEL B

IPC: F02C6/00 ,  F02C6/10 ,  H01M8/04 ,  H01M8/06

Abstract: PRESSURIZED FUEL CELL POWER PLANT WITH AIR BYPASS A power plant for producing electricity uses fuel cells run on pressurized air and pressurized fuel. The air is compressed by compressor apparatus which is driven by waste energy in the form of hot pressurized gases produced in the power plant. In one embodiment the compressor apparatus includes a turbine operably connected to a compressor for driving the same. At part power, in order to maintain the pressure of the air being fed to the cells while reducing the amount of air fed to the cells, a portion of the compressed air is bypassed around the fuel cells, is increased in temperature using an auxiliary burner, and is delivered into the turbine to help drive the compressor. By doing this the mass flow of air through the cells may be reduced without reducing the mass flow of gases into the turbine thereby maintaining the speed of the compressor at part power.

公开(公告)号：CA1043856A

公开(公告)日：1978-12-05

申请号：CA244336

申请日：1976-01-23

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BLOOMFIELD DAVID P ,  LANDAU MICHAEL B

IPC: H01M8/04 ,  H01M8/06

Abstract: PRESSURIZED FUEL CELL POWER PLANT WITH STEAM FLOW THROUGH THE CELLS A fuel cell power plant for producing electricity uses pressurized air and fuel in the cells. The air is compressed by compressor apparatus powered by waste energy in the form of hot pressurized gases including hot pressurized steam produced by the power plant. In one embodiment the compressor apparatus includes a turbine operably connected to a compressor, and hot pressurized gases produced by the power plant flow into the turbine thereby driving the compressor. The steam is generated by heat from the fuel cells, passes through the fuel cells adjacent the cathode electrode thereof, and is delivered into the turbine along with the other gases.