Simulation of a SOFC/Battery powered vehicle

Bessékon, Yannick; Zielke, Philipp; Wulff, Anders Christian; Hagen, Anke

doi:10.1016/j.ijhydene.2018.11.126

Cited by 54 publications

(20 citation statements)

References 11 publications

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“…SOFCs (Solid Oxide Fuel Cells) have high electrical efficiency [1] compared to traditional systems with low emissions and high fuel flexibility [2,3,4]. Biogas-fed SOFC system can produce clean electricity and heat at potentially low costs, boosting the biogas production sites potential.…”

Section: Introductionmentioning

confidence: 99%

Comparison of integrated fuel processing options for biogas-fed solid-oxide fuel cell plants

Loreti

Wang

et al. 2021

E3S Web Conf.

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The Solid-oxide fuel cell is a highly efficient prime mover for biogas conversion, but a part of biogas needs to be reformulated externally to facilitate the electrochemical conversion, easy control of reforming conditions, and thermal management of the stack. Carbon deposition and external mineralcarrying water should be avoided to ensure the durability of the fuel processor and stack catalysts. This paper investigates four plant layouts with different anode off-gas recirculation schemes and biogas reforming methods: (1) pre-reforming with hot recirculation (HR), (2) pre-reforming with cold recirculation (CR), (3) no pre-reforming and hot recirculation (NR), (4) partial oxidation with hot recirculation (PO). All the schemes feature an electrolyte supported SOFC working at 860°C and 0.23 A/cm2 current density. A sensitivity analysis of the plant efficiency as a function of the Recirculation Ratio (RR) and the Reformer Temperature (RT) is performed. The results show that HR and CR schemes achieve the highest efficiency (58-63%). The HR scheme benefits from the recirculated water and does not require external water for RR > 50% and RT > 600°C; the CR scheme achieves the same result for RR > 80% and RT > 700°C. The optimal RR is within 50 – 80% for the highest system efficiency, as a trade-off between the overall fuel utilization and electrochemistry performance. The RT should be between 600 and 700°C. The HR scheme is the overall best performing if the re-circulator and stack designs do not limit the flow rates at a high RR.

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Section: Introductionmentioning

confidence: 99%

Comparison of integrated fuel processing options for biogas-fed solid-oxide fuel cell plants

Loreti

Wang

et al. 2021

E3S Web Conf.

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“…Instead, a 30 l tank and a commercially available SOFC was integrated in the power train model. Using liquefied petroleum gas (LPG), a range extension towards values common for internal combustion engine vehicles were simulated in this setup (823 km vs. 170 km of the original vehicle (15)). In order to achieve even longer ranges, the tank size could be increased, which is a cheaper option than increasing the battery size.…”

Section: Introductionmentioning

confidence: 99%

Metal Supported SOFCs for Mobile Applications using Hydrocarbon Fuels

Hagen

Sun

Sudireddy

et al. 2020

J. Electrochem. Soc.

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“…Ceres Power company reveals that its metal-supported SOFC uses gadolinium-doped ceria as the electrolyte, a ceria–nickel cermet as the anode, lanthanum perovskite as the cathode, and laser-drilled ferritic steel as the substrate . Fast startup capability and high mechanical robustness make it a promising candidate for mobile applications, especially the SOFC-battery hybrid power system can lower the vehicle weight and extend the driving range with fast refueling …”

Section: Introductionmentioning

confidence: 99%

“…7 Fast startup capability and high mechanical robustness make it a promising candidate for mobile applications, especially the SOFC-battery hybrid power system can lower the vehicle weight and extend the driving range with fast refueling. 8 In mobile applications, liquid fuel can operate the SOFC system directly with easy storage and transportation, reducing the system size and complexity. 9 Without depending on the hydrogen infrastructure, the SOFC system has safer and cheaper refueling than the hydrogen fuel cell system.…”

Section: Introductionmentioning

confidence: 99%

Design and Evaluation of a Metal-Supported Solid Oxide Fuel Cell Vehicle Power System with Bioethanol Onboard Reforming

Zhao

et al. 2021

ACS Omega

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A solid oxide fuel cell (SOFC) has wide stationary and mobile application prospects due to its high efficiency and fuel flexibility. The SOFC system’s performance depends on the reforming option and system design. In this paper, we designed a novel SOFC auxiliary power unit (APU) system with ethanol on-board reforming aiming at vehicle application. The thermodynamic analysis is employed to evaluate the ethanol-fueled SOFC performance of different reforming options with a metal-supported SOFC working at 600 °C and a 0.3 A/cm2 current density. The electrical efficiency of the SOFC can reach a maximum of 50% with ethanol autothermal reforming. Under the optimal reforming option and operating conditions, the conceptual SOFC-APU system design is identified with the trade-off between system efficiency and ethanol flow from the startup and stable operation phase. The results show that the system efficiency of 44.4% can be achieved with a 0.42 g/s ethanol flow at the startup phase. During the stable operation, the electrical efficiency and exergy efficiency of the SOFC-APU system can reach 55.4 and 77.1% with a 70% anode gas recirculation ratio, respectively.

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Simulation of a SOFC/Battery powered vehicle

Cited by 54 publications

References 11 publications

Comparison of integrated fuel processing options for biogas-fed solid-oxide fuel cell plants

Comparison of integrated fuel processing options for biogas-fed solid-oxide fuel cell plants

Metal Supported SOFCs for Mobile Applications using Hydrocarbon Fuels

Design and Evaluation of a Metal-Supported Solid Oxide Fuel Cell Vehicle Power System with Bioethanol Onboard Reforming

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