Other

Delphi Technologies, Inc.

Steven R Shaffer

Karl Jacob Haltiner, Jr

Sean Michael Kelly

Kevin Richard Keegan

Haskell Simpkins

Subhasish Mukerjee

John G Noetzel

Michael Thomas Faville

John F O'Brien

Harry L Husted

Gail E Geiger

John Alan MacBain

Donald J Armstrong

David R Schumann

M James Grieve

Christopher M DeMinco

James Michael Haller

Juergen T Kammerer

Catherine Vavonese

John A Macbain

An SOFC fuel cell stack system in accordance with the invention including a recycle flow leg for recycling a portion of the anode tail gas into the inlet of an associated hydrocarbon reformer supplying reformate to the stack. The recycle leg includes a controllable pump for varying the flow rate of tail gas. Preferably, a heat exchanger is provided in the leg ahead of the pump for cooling the tail gas via heat exchange with incoming cathode air. A low-wattage electrical reheater is also preferably included between the heat exchanger and the pump to maintain the temperature of tail gas entering the pump, during conditions of low tail gas flow, at a drybulb temperature above the dewpoint of the tail gas.

Anode tail gas recycle cooler and re-heater for a solid oxide fuel cell stack assembly

A method of starting a solid oxide fuel cell system is disclosed. The method comprises pressurizing a main plenum to a first pressure. The main plenum comprises a first supply of fuel, blowers, and air control valves. The first supply of fuel and a first supply of air are directed to a preheated micro-reformer. A heated pre-reformate is created in the micro-reformer and discharged from the micro-reformer to a main reformer. The main reformer is preheated with the heated pre-reformate. A second supply of fuel and a second supply of air are introduced to the main reformer. A heated main reformate is created in the main reformer and directed to a waste energy recovery assembly. A cathode supply is heated in the waste energy recovery system and then directed to a solid oxide fuel cell stack in order to heat the solid oxide fuel cell stack. Methods of transitioning, operating, shutting down, and maintaining in standby mode are also disclosed. A solid oxide fuel cell mechanization for a transportation vehicle is also disclosed.

Integrated solid oxide fuel cell mechanization and method of using for transportation industry applications

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Fairport, NY, United States of America

Steven R Shaffer