Bloom Energy Corporation

Silicon Graphics, Incorporated

Swaminathan Venkataraman

David Weingaertner

Arne Watson Ballantine

Matthias Gottmann

Martin Perry

Fred Mitlitsky

John Finn

James F McElroy

K R Sridhar

Vlad Kalika

Chockkalingam Karuppaiah

Emad El Batawi

William David Lyle

Padiadpu Shankara Anantha

Michael Gasda

John Fisher

Cheng-Yu Lin

Robert M Hintz

Kr Sridhar

M Douglas LeVan

Jonathan Scholl

Greg Young

Abhijit Dutta

Sagar Mainkar

William Alan Whittenberger

Tad Armstrong

Jeffrey Glenn Libby

Ranganathan Gurunathan

Prasad Pmsvvsv

Michael Petrucha

David Edmonston

Gilbert Richards

Jayakumar Krishnadass

Vijay Srivatsan

John Keen

Stephen Couse

Jessica Mahler

Manoj Pillai

Nilanjana Basu

James Smith

Andy Ta

Vijay Radhakrishnan

Ram Ramanan

Christian Daco

Brent D Miller

Pramod Vachhani

Samuel Juday

Stuart Aaron

Deepak Balakrishnan

Virpaul Bains

Deepak Shukla

Mohamed Sharif

Brent Cheldelin

Selfia Halim

Pradhiba Mohan

Rakesh Kandiboina

Matthias Gottman

James Mcelroy

Navaneetha Krishnan

Ananda Sundararajan

KR Sridhar

M Douglas Levan

A cross-flow interconnect and a fuel cell stack including the same, the interconnect including fuel inlets and outlets that extend through the interconnect adjacent to opposing first and second peripheral edges of the interconnect; an air side; and an opposing fuel side. The air side includes an air flow field including air channels that extend in a first direction, from a third peripheral edge of the interconnect to an opposing fourth peripheral edge of the interconnect; and riser seal surfaces disposed on two opposing sides of the air flow field and in which the fuel inlets and outlets are formed. The fuel side includes a fuel flow field including fuel channels that extend in a second direction substantially perpendicular to the first direction, between the fuel inlets and outlets; and a perimeter seal surface surrounding the fuel flow field and the fuel inlets and outlets.

Cross-flow interconnect and fuel cell system including same

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.

Solid oxide fuel cell system with hydrogen pumping cell with carbon monoxide tolerant anodes and integrated shift reactor

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.

Fuel cell system including exhaust heat recovery components

A method of controlling an inverter having a three phase output and a plurality of single phase loads connected to respective one of the three phases of the three phase output includes determining if a first phase of the three phase output has a heavier load than a second phase of the three phase output, and providing a higher output power from the inverter to the first phase than to the second phase if it is determined that the first phase has a heavier load than the second phase.

Methods of advanced grid and microgrid support functionalities through hybrid fuel cell systems

A method of operating a solid oxide fuel cell (SOFC) system which contains a plurality of SOFCs having cermet anode electrodes includes operating the SOFC system above 760&#xb0; C. to generate electricity and intentionally oxidizing the cermet anode electrodes at a temperature of at least 760&#xb0; C. when the SOFC system stops operating to generate electricity.

High temperature air purge of solid oxide fuel cell anode electrodes

A fuel cell stack module includes a base, a cover dome removably positioned on the base, and a plurality of fuel cell stacks removably positioned on the base below the cover dome. A modular fuel cell system includes a plurality of the fuel cell stack modules, where each fuel cell stack module may be electrically disconnected, removed from the fuel cell system, repaired or serviced without stopping an operation of the other fuel cell stack modules in the fuel cell system.

Modular fuel cell system

A method of operating a fuel cell system includes providing a fuel inlet stream into a fuel cell stack, operating the fuel cell stack to generate electricity and a hydrogen containing fuel exhaust stream having a temperature above 200 C, lowering a temperature of the fuel exhaust stream to 200 C or less, separating the fuel exhaust stream into a first separated fuel exhaust stream and a second separated fuel exhaust stream, and recycling the first separated fuel exhaust stream into the fuel inlet stream.

Fuel cell system with partial recycling of anode exhaust

A fuel cell system comprises at least one fuel cell stack, a CPOX reactor, and a conduit for providing a fuel stream to the at least one fuel cell stack through the CPOX reactor during both a start up and a steady state modes of operation of the system.

Integrated fuel line to support CPOX and SMR reactions in SOFC systems

A method of operating a fuel cell system includes characterizing the fuel or fuels being provided into the fuel cell system, characterizing the oxidizing gas or gases being provided into the fuel cell system, and calculating at least one of the steam:carbon ratio, fuel utilization and oxidizing gas utilization based on the step of characterization.

Derivation of control parameters of fuel cell systems for flexible fuel operation

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

SOFC hot box components

A multi-stream heat exchanger includes at least one air preheater section, at least one cathode recuperator section, and at least one anode recuperator section, wherein each section is a plate type heat exchanger having two major surfaces and a plurality of edge surfaces, a plurality of risers through at least some of the plates, and a plurality of flow paths located between plates. The cathode recuperator section is located adjacent to a first edge surface of the anode recuperator, and the air preheater section is located adjacent to a second edge surface of the anode recuperator section.

Multi-stream heat exchanger for a fuel cell system

A method of operating a fuel cell system includes introducing a fuel mixture comprising hydrogen, fuel, and steam at a fuel inlet of the fuel cell system, and operating the fuel cell system to generate electricity. A ratio of hydrogen to carbon from fuel (H:C) in the fuel mixture is within a range of 0.25:1 to 3:1, inclusive; and a ratio of steam to carbon (S:C) in the fuel mixture is less than 2:1.

Operation of fuel cell systems with reduced carbon formation and anode leading edge damage

Growing community of inventors

Cupertino, CA, United States of America

Swaminathan Venkataraman