A High-Energy Module Containing a Micro-Tubular Solid Oxide Fuel Cell Coupled with Catalytic Partial Oxidation of n-Butane

2019 ◽  
Vol 91 (1) ◽  
pp. 339-348 ◽  
Author(s):  
Jixin Shi ◽  
Siqi Gong ◽  
Hongyu Zeng ◽  
Tianyu Cao ◽  
Yixiang Shi ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Partial Oxidation ◽  
High Energy ◽  
Solid Oxide ◽  
Catalytic Partial Oxidation ◽  
Oxide Fuel

Performance of a solid oxide fuel cell couple operated via in situ catalytic partial oxidation of n-butane

2009 ◽  
Vol 189 (2) ◽  
pp. 950-957 ◽  
Author(s):  
Michio Horiuchi ◽  
Fumimasa Katagiri ◽  
Jun Yoshiike ◽  
Shigeaki Suganuma ◽  
Yasue Tokutake ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Partial Oxidation ◽  
Solid Oxide ◽  
Catalytic Partial Oxidation ◽  
Oxide Fuel

Evaluation of Reforming Characteristics for a Catalytic Partial Oxidation Micro-Reformer Built in the Solid Oxide Fuel Cell

2018 ◽  
Vol 2018.71 (0) ◽  
pp. F21
Author(s):  
Wataru Matsunaka ◽  
Hironori Nakajima ◽  
Alejandro J. Santis-Alvarez ◽  
Dimos Poulikakos ◽  
Kohei Ito
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Partial Oxidation ◽  
Solid Oxide ◽  
Catalytic Partial Oxidation ◽  
Oxide Fuel

Surge Prevention Techniques for a Turbocharged Solid Oxide Fuel Cell Hybrid System

2021 ◽  
Author(s):  
L. Mantelli ◽  
M. L. Ferrari ◽  
A. Traverso
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Rotational Speed ◽  
Pressure Ratio ◽  
High Energy ◽  
Cell System ◽  
Solid Oxide ◽  
Pollutant Emissions ◽  
Inlet Temperature ◽  
Oxide Fuel

Abstract Pressurized solid oxide fuel cell (SOFC) systems are one of the most promising technologies to achieve high energy conversion efficiencies and reduce pollutant emissions. The most common solution for pressurization is the integration with a micro gas turbine, a device capable of exploiting the residual energy of the exhaust gas to compress the fuel cell air intake and, at the same time, generating additional electrical power. The focus of this study is on an alternative layout, based on an automotive turbocharger, which has been more recently considered by the research community to improve cost effectiveness at small size (< 100 kW), despite reducing slightly the top achievable performance. Such turbocharged SOFC system poses two main challenges. On one side, the absence of an electrical generator does not allow the direct control of the rotational speed, which is determined by the power balance between turbine and compressor. On the other side, the presence of a large volume between compressor and turbine, due to the fuel cell stack, alters the dynamic behavior of the turbocharger during transients, increasing the risk of compressor surge. The pressure oscillations associated with such event are particularly detrimental for the system, because they could easily damage the materials of the fuel cells. The aim of this paper is to investigate different techniques to drive the operative point of the compressor far from the surge condition when needed, reducing the risks related to transients and increasing its reliability. By means of a system dynamic model, developed using the TRANSEO simulation tool by TPG, the effect of different anti-surge solutions is simulated: (i) intake air conditioning, (ii) water spray at compressor inlet, (iii) air bleed and recirculation, and (iv) installation of an ejector at the compressor intake. The pressurized fuel cell system is simulated with two different control strategies, i.e. constant fuel mass flow and constant turbine inlet temperature. Different solutions are evaluated based on surge margin behavior, both in the short and long terms, but also monitoring other relevant physical quantities of the system, such as compressor pressure ratio and turbocharger rotational speed.

Impact of low concentration hydrocarbons in natural gas on thermal partial oxidation in a micro-flow reactor for solid oxide fuel cell applications

2020 ◽  
Vol 477 ◽  
pp. 229007
Author(s):  
Brent B. Skabelund ◽  
Hisashi Nakamura ◽  
Takuya Tezuka ◽  
Kaoru Maruta ◽  
Jeongmin Ahn ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Natural Gas ◽  
Solid Oxide Fuel Cell ◽  
Partial Oxidation ◽  
Flow Reactor ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Low Concentration ◽  
Micro Flow

System Configuration and Performance Studies of Solid Oxide Fuel Cell -Gas Turbine Hybrid Cycle

2007 ◽  
Author(s):  
Wei Jiang ◽  
Ruxian Fang ◽  
Jamil A. Khan ◽  
Roger A. Dougal
Keyword(s):  
Fuel Cell ◽  
Power Plant ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Finite Volume ◽  
Hybrid System ◽  
High Energy ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Hybrid Cycle

Fuel Cell is widely regarded as a potential alternative in the electric utility due to its distinct advantages of high energy conversion efficiency, low environmental impact and flexible uses of fuel types. In this paper we demonstrate the enhancement of thermal efficiency and power density of the power plant system by incorporating a hybrid cycle of Solid Oxide Fuel Cell (SOFC) and gas turbine with appropriate configurations. In this paper, a hybrid system composed of SOFC, gas turbine, compressor and high temperature heat exchanger is developed and simulated in the Virtual Test Bed (VTB) computational environment. The one-dimensional tubular SOFC model is based on the electrochemical and thermal modeling, accounting for the voltage losses and temperature dynamics. The single cell is discretized using a finite volume method where all the governing equations are solved for each finite volume. Simulation results show that the SOFC-GT hybrid system could achieve a 70% total electrical efficiency (LHV) and an electrical power output of 853KW, around 30% of which is produced by the power turbine. Two conventional power plant systems, i.e. gas turbine recuperative cycle and pure Fuel Cell power cycle, are also simulated for the performance comparison to validate the improved performance of Fuel Cell/Gas Turbine hybrid system. Finally, the dynamic behavior of the hybrid system is presented and analyzed based on the system simulation.

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