Experimental characterization of an anode-supported tubular SOFC generator fueled with hydrogen, including a principal component analysis and a multi-linear regression

Santori, Giulio; Brunetti, Emanuela; Polonara, Fabio

doi:10.1016/j.ijhydene.2011.04.036

Cited by 13 publications

(11 citation statements)

References 38 publications

(22 reference statements)

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“…The above-described tendency towards a decrease of the SOFC operating temperature resulted in the need to reduce the electrolyte thickness and transfer the function of the mechanical support to another component. The most widespread at present is the anode-supported (AS) structure of SOFC [ 85 , 86 , 87 , 88 , 89 ], which allows achieving high specific power at temperatures below 800 °C due to the thin electrolyte layer and high conductivity of the Ni-based anode [ 18 ]. In addition, this design is cheaper, because the NiO cost is lower than that of electrolyte and cathode materials.…”

Section: Classification Of Sofcmentioning

confidence: 99%

“…Moreover, the manufacturing process of the tubular cells is more expensive. Today, as well as for the planar cells, the supporting anode design is the most widespread architecture of tubular SOFC [ 88 ], having displaced the cathode-supported design from the leading position. Although, as already mentioned, the first large stacks were assembled on tubular CS SOFC [ 91 ].…”

Section: Classification Of Sofcmentioning

confidence: 99%

“…Nevertheless, Figure 8 shows that the most well-developed O-SOFC used industrial generators operate at temperatures of 800 °C and above. Only AS O-SOFC stacks operate at lower temperatures [ 88 , 115 ]. Alternative designs such as EFFC and H-SOFC are promising for reducing operating temperatures; however, research and development are needed to reach a more mature state of these technologies.…”

Section: Systematization Of Sofcmentioning

confidence: 99%

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Classification of Solid Oxide Fuel Cells

et al. 2022

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Solid oxide fuel cells (SOFC) are promising, environmentally friendly energy sources. Many works are devoted to the study of materials, individual aspects of SOFC operation, and the development of devices based on them. However, there is no work covering the entire spectrum of SOFC concepts and designs. In the present review, an attempt is made to collect and structure all types of SOFC that exist today. Structural features of each type of SOFC have been described, and their advantages and disadvantages have been identified. A comparison of the designs showed that among the well-studied dual-chamber SOFC with oxygen-ion conducting electrolyte, the anode-supported design is the most suitable for operation at temperatures below 800 °C. Other SOFC types that are promising for low-temperature operation are SOFC with proton-conducting electrolyte and electrolyte-free fuel cells. However, these recently developed technologies are still far from commercialization and require further research and development.

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Section: Classification Of Sofcmentioning

confidence: 99%

Section: Classification Of Sofcmentioning

confidence: 99%

Section: Systematization Of Sofcmentioning

confidence: 99%

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Classification of Solid Oxide Fuel Cells

et al. 2022

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“…The rates of DIR and WGSR in anode can be obtained by (25)(26) [6] where i N is the flux vector of mass transfer of species i (kg/m 2 /s), eff ik D are the effective multicomponent Fick diffusivities (m 2 /s), k d is the diffusional driving force (1/m).…”

Section: Mass Transportmentioning

confidence: 99%

Three-dimensional Modeling of Internal Reforming SOFC with a Focus on the Interconnect Size Effect

Sun

2015

ECS Trans.

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A three-dimensional (3D) model of methane fed SOFC stack has been developed to investigate interconnect size effect on stack performance. Different from the existing studies on interconnect size effect which only consider hydrogen (H 2 ) as a fuel, we considered direct internal reforming (DIR) of methane and water gas shift reaction (WGSR) in anode. In addition, both H 2 and carbon monoxide (CO) are considered as electrochemically active fuel in this model. Parametric simulations are performed to study the geometric effect of interconnect on stack performance. Different from H 2 fuel case, the temperature decreases along the gas channel of methane fed SOFC. It is also found that the interconnect rib size has obvious effect on the current density distribution. The results also show that the optimum ratio Ra is 0.3 for stacks with different ratio of the inlet methane to steam, while the optimum ratio is 0.2 for SOFC running on H 2 .

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“…However, the above discussion and the literatures illustrate that there are many mathematical models; designs and experimental investigation have been done dealing with planner and tubular SOFC; where most efforts have been given to concern with the electrical performance of the cell [18][19][20][21][22][23][24][25][26]. But, among them, there are very few, especially the experimental efforts using tubular SOFC, concerning with the cogeneration purpose.…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation on a single tubular SOFC for renewable energy based cogeneration system

Ullah

Akikur

Ping

et al. 2015

Energy Conversion and Management

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a b s t r a c tHaving negative impacts on environment and the scarcity of resources of conventional fossil fuels, fuel cell technology draws more attention as an alternative for providing the electrical energy in parallel with thermal energy. In this study, a single tubular solid oxide fuel cell (SOFC) with an electrolyte of YttriaStabilized Zirconia 8 mol% ceramic powder was experimentally investigated. The investigation illustrated the effects of three different fuel flow-rates (175 ml/min, 250 ml/min and 325 ml/min) and two operating temperatures (650°C and 750°C) on the output electrical and thermal powers. The highest electrical voltage (open circuit) and overall output power of the cell were found to be 1.1 V and 5.30 W respectively for the fuel flow-rate of 250 ml/min at the operating temperature of 750°C. The electrical power and efficiency were increased about 18.80% and 1.27% respectively for the increase of operating temperature from 650°C to 750°C for a constant fuel flow-rate of 250 ml/min, where; thermal power and efficiency were increased about 33.33% and 10.51% respectively for the same condition. The overall efficiencies of the fuel cell were obtained about 80.42%, 77.49% and 60.73% for the fuel flow-rates of 175 ml/min, 250 ml/min and 325 ml/min respectively for the operating temperatures of 650°C. On the other hand, the overall efficiency of the cell was found to be 83.38% at the operating temperature of 750°C and fuel flow-rate of 250 ml/min. The investigation recommends that for achieving higher efficiency, fuel flow-rate should be lower and operating temperature should be higher.

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Experimental characterization of an anode-supported tubular SOFC generator fueled with hydrogen, including a principal component analysis and a multi-linear regression

Abstract: Experimental characterization of an anode-supported tubular SOFC generator fueled with hydrogen, including a principal component analysis and a multi-linear regression

Cited by 13 publications

References 38 publications

Classification of Solid Oxide Fuel Cells

Classification of Solid Oxide Fuel Cells

Three-dimensional Modeling of Internal Reforming SOFC with a Focus on the Interconnect Size Effect

An experimental investigation on a single tubular SOFC for renewable energy based cogeneration system

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