Experimental Analysis on Performance and Durability of SOFC Demonstration Unit

Halinen, Matias; Saarinen, Jaakko; Noponen, Matti; Vinke, Izaak C.; Kiviaho, Jari

doi:10.1002/fuce.200900152

Cited by 25 publications

(12 citation statements)

References 17 publications

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“…Even though a higher air flow rate offers a smoother internal temperature profile, its negative side effects on the cell performance, such as the fuel utilization and power produced, are significant, as described in the literature (Halinen et al, 2010;Di Carlo et al, 2013). More importantly the higher air flow rates cause higher operating costs as greater power is consumed in providing the required flow rate (Di Carlo et al, 2013).…”

Section: Effect Of Air Flow Rate At Constant Fuel Flow Ratementioning

confidence: 99%

Solid oxide fuel cell reactor analysis and optimisation through a novel multi-scale modelling strategy

Amiri

Vijay

Tadé

et al. 2015

Computers & Chemical Engineering

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Section: Effect Of Air Flow Rate At Constant Fuel Flow Ratementioning

confidence: 99%

Solid oxide fuel cell reactor analysis and optimisation through a novel multi-scale modelling strategy

Amiri

Vijay

Tadé

et al. 2015

Computers & Chemical Engineering

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“…The calculation method used at VTT utilizes the Cantera toolbox using GRI‐Mech 3.0 reactions for natural gas combustion . The calculation is performed stepwise for each FU and RR combination: The fuel need is calculated based on FU, RR and the current.…”

Section: Methodsmentioning

confidence: 99%

Development of a fuel feeder for a solid oxide fuel cell test station

Tallgren

Thomann

Halinen

et al. 2015

Int. J. Energy Res.

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SUMMARYSolid oxide fuel cells (SOFC) can utilize various fuels, such as natural gas, hydrogen and biogas, but often, it is sensible to use a pre-reformer that converts the fuel into a hydrogen-rich gas stream. Relevant testing conditions, including the fuel to be used in SOFC systems, are important because cell performance depends on test conditions, such as fuel composition. Still, a majority of the reported single-cell and short stack tests are performed with pure hydrogen or synthetic reformate mixed from gas bottles. In this article, the development of a fuel feeder used to pre-reform natural gas for a single cell SOFC test station is presented. To mimic SOFC system conditions, natural gas is taken from the grid, desulfurized with commercial sulfur sorbent and reformed with a commercial precious metal catalyst. The fuel feeder is designed to be a versatile and efficient research tool, capable to be used in a wide temperature and gas flow range and with different reforming techniques, such as steam reforming, catalytic partial oxidation and simulated anode off-gas recycling. The construction, operation and characterization of the fuel feeder as well as methods of avoiding carbon formation are discussed. The performance is evaluated by comparing measured outlet temperatures and compositions against equilibrium values. All measured gas compositions matched closely with the calculated equilibrium values, and the identified deviations were small and to no harm in practical use. The operator can control the product gas composition by setting the fuel feeder heater to the temperature corresponding to the targeted composition. Results show that the fuel feeder design can be used as such for single-cell testing or scaled to fit larger stack test stations.

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“…constructed such a system by arranging a 5 kW‐class SOFC stack and two heat exchangers for air preheating in series and evaluated its performance. They also analyzed the amount of power generation and the increase in temperature of the preheated air through the connected operation using a stack . Kazempoor et al.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis for Thermal Performance of Heat Distribution System in hot BoP of 2 kW‐class SOFC

Kim

Yoon

et al. 2019

Fuel Cells

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This study designed and tested the components of hot balance of plant (BoP) included in a 2 kW‐class solid oxide fuel cell (SOFC) system and evaluated their thermal performance. A Pd/Pt catalytic combustor was fabricated as a component of hot BoP, and integrated hot BoP with an efficient structure was fabricated by calculating the heat transfer rates of the air preheater and steam generator through a theoretical design method. It was found that placement of the air preheater in front of the steam generator exhibited the most excellent heat transfer rate. Moreover, the heat transfer rates of the designed air preheater and steam generator exceeded the upper limit of the maximum possible heat transfer of the preheated air and the water. In experimental results, the thermal efficiency of the integrated system was 60% at the reference heat input and 70% at low heat input. The oxidizing flame of the catalyst was visualized, and the oxidation characteristics of the catalytic combustor were analyzed by measuring the concentration of the final discharged gas, that is, carbon monoxide (CO). This study helps to fabricate the integrated hot BoP system, as it provides design techniques and efficient system configuration.

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Experimental Analysis on Performance and Durability of SOFC Demonstration Unit

Cited by 25 publications

References 17 publications

Solid oxide fuel cell reactor analysis and optimisation through a novel multi-scale modelling strategy

Solid oxide fuel cell reactor analysis and optimisation through a novel multi-scale modelling strategy

Development of a fuel feeder for a solid oxide fuel cell test station

Experimental Analysis for Thermal Performance of Heat Distribution System in hot BoP of 2 kW‐class SOFC

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