Abstract: A fuel cell stack assembly and method of operating the same are provided. The assembly includes a fuel cell stack column and side baffles disposed on opposing sides of the column. The side baffles and the fuel cell stack may have substantially the same coefficient of thermal expansion at room temperature. The side baffles may have a laminate structure in which one or more channels are formed.

Abstract: A fuel cell system including power modules including fuel cells, and an exhaust flue connected to the power modules. The exhaust flue includes an outer duct configured to receive relatively cool cabinet exhaust from the power modules, and an inner duct disposed inside of the outer duct and configured to receive relatively hot reaction exhaust from the power modules.

Abstract: A method of operating a vessel includes providing hydrogen or a fuel mixture containing hydrogen and a hydrocarbon fuel to a power generator disposed on the vessel, and providing power from the power generator to an electrical load of the vessel.

Abstract: A fuel cell device includes at least one fuel cell column containing first and second fuel cell stacks, a fuel manifold located between the first and second fuel cell stacks and configured to provide fuel to the first and second fuel cell stacks, and a dielectric material located to electrically isolate the first and second fuel cell stacks from the fuel manifold.

Abstract: A method of operating a fuel cell system includes providing an anode exhaust from a fuel cell stack to a water injector, supplying water to the water injector, and injecting the water from the water injector into the anode exhaust to vaporize the water and generate a humidified anode exhaust.

Abstract: A method of operating a fuel cell system includes providing an anode exhaust from a fuel cell stack to a water injector, supplying water to the water injector, and injecting the water from the water injector into the anode exhaust to vaporize the water and generate a humidified anode exhaust.

Abstract: A fuel cell column includes first and second fuel cell stacks, a fuel manifold disposed between the first and second fuel cell stacks and configured to provide fuel to the first and second fuel cell stacks, and first and second dielectric separators located between the fuel manifold and the respective first and second fuel cell stacks, and configured to electrically isolate the respective first and second fuel cell stacks from the fuel manifold. The first and second dielectric separators each include a top layer of a ceramic material, a bottom layer of the ceramic material, a middle layer disposed between the top and bottom layers and including a material having a lower density and a higher dielectric strength than the ceramic material, and glass or glass ceramic seals which connect the middle layer to the top and bottom layers.

Abstract: A method of forming a fuel cell interconnect includes depositing a Cr alloy powder, sintering the Cr alloy powder, and repeating the depositing and the sintering to form the fuel cell interconnect. The Cr alloy powder may include a pre-alloyed powder containing from about 4 wt. % to about 6 wt. % Fe, and from about 94 wt. % to about 96 wt. % Cr.

Abstract: The present invention relates to a novel apparatus for delivering herbicide and/or fertilizer to row crops.

Abstract: A fuel cell system includes fuel cells disposed in a stack and separated by interconnects, a cathode recuperator configured to heat air provided to the stack using reaction exhaust provided from the stack, a steam generator configured to receive the reaction exhaust from the cathode recuperator and generate steam using the reaction exhaust, a hot box housing the stack, cathode recuperator, and steam generator, and a Cr filter including a porous metal and configured to remove Cr vapor species from the reaction exhaust.

Abstract: A fuel cell system includes a plurality of fuel cell stacks or columns, each fuel cell stack or column containing a plurality of fuel cells, and at least one pressure drop tool located in a fuel path of at least one first fuel cell stack or column but not in a fuel path of at least one second fuel cell stack or column.

Abstract: One method of operating a fuel cell system including splitting a cathode exhaust from one or more fuel cell stacks in the system into a majority cathode exhaust stream comprising more than 50% of the cathode exhaust and a first cathode exhaust bypass stream, providing the majority cathode exhaust stream to an inlet of an anode tail gas oxidizer (ATO) containing a catalyst and providing the first cathode bypass stream downstream of the catalyst such that it bypasses the catalyst. Another method includes providing an air inlet stream to the SOFC system via a main air inlet, providing the air inlet stream from the main air inlet to a cathode recuperator, and providing a cooling medium to a heat exchanger to cool the cathode recuperator.

Abstract: A fuel cell system and method of operating the same, the system including: a fuel cell stack and a reaction zone configured to receive a fuel/air mixture; an electromagnetic induction glow plug configured to heat the fuel/air mixture; and an alternating current (AC) generator configured to provide an AC voltage to the glow plug. The glow plug includes a housing extending outside of the hotbox, a heating element disposed in the housing, and a coil coiled around the housing, electrically connected to the AC generator, and configured to inductively heat the heating element.

Abstract: A fuel cell stack assembly includes a fuel cell stack column, and side baffles disposed on opposing sides of the column. The side baffles include side baffle plates containing at least one ceramic matrix composite (CMC) panel having at least one hole, and at least one denser ceramic element joined to the at least one CMC panel at the hole in the CMC panel.

Abstract: A fuel cell device includes at least one fuel cell column containing first and second fuel cell stacks, a fuel manifold located between the first and second fuel cell stacks and configured to provide fuel to the first and second fuel cell stacks, and a dielectric material located to electrically isolate the first and second fuel cell stacks from the fuel manifold.

Abstract: A fuel cell system includes at least one of plural electrochemical pump separators to separate carbon dioxide from a fuel exhaust stream or a combination of a gas separator and a fuel exhaust cooler located outside a hotbox.

Abstract: Various hot box fuel cell system components are provided, such as heat exchangers, steam generator and other components.

Abstract: A fuel cell system includes a fuel cell stack, a fuel inlet conduit configured to provide a fuel to a fuel inlet of the fuel cell stack, an electrochemical pump separator containing an electrolyte, a cathode, and a carbon monoxide tolerant anode, a fuel exhaust conduit that operatively connects a fuel exhaust outlet of the fuel cell stack to an anode inlet of the electrochemical pump separator, and a product conduit which operatively connects a cathode outlet of the electrochemical pump separator to the fuel inlet conduit.

Abstract: A power generating system includes power modules disposed in vertically stacked levels, exhaust plenums that extend vertically through the levels of power modules and are configured to receive exhaust output from the power modules, and an exhaust conduit that extends horizontally across an uppermost level of the power modules and is fluidly connected to the exhaust plenums.

Abstract: A method of operating a fuel cell system includes providing an anode exhaust from a fuel cell stack to a water injector, supplying water to the water injector, and injecting the water from the water injector into the anode exhaust to vaporize the water and generate a humidified anode exhaust.