Highly integrated catalytic burner with laser-additive manufactured manifolds

Meißner, J.; Weiske, Stefan; Faidel, D.; Tschauder, Andreas; Samsun, Remzi Can; Pasel, Joachim; Peters, Ralf; Stolten, Detlef

doi:10.1039/c6re00223d

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…In this work, most of the additional functions are included in the new catalytic burner CAB 6. This was developed on the basis of the CAB 5, which was initially conceptualized for this system but could not be realized due to the technological risks associated with the laser additive manufacturing technology [52]. Therefore, in this study the same concept was further developed for conventional manufacturing technology.…”

Section: Reactor and System Designmentioning

confidence: 99%

“…The concept development for the reactor was supported by CFD simulations, which are reported in Meißner at al. [52]. In addition to these, further CFD simulations using ANSYS Fluent were performed in order to optimize the flow distribution in the shell and tube heat exchanger, which resulted in a modified diffusor geometry to uniformly guide the off-gas flow through the heat exchanger channels.…”

Section: Reactor and System Designmentioning

confidence: 99%

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A Compact, Self-Sustaining Fuel Cell Auxiliary Power Unit Operated on Diesel Fuel

et al. 2021

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A complete fuel cell-based auxiliary power unit in the 7.5 kWe power class utilizing diesel fuel was developed in accordance with the power density and start-up targets defined by the U.S. Department of Energy. The system includes a highly-integrated fuel processor with multifunctional reactors to facilitate autothermal reforming, the water-gas shift reaction, and catalytic combustion. It was designed with the help of process analyses, on the basis of which two commercial, high-temperature PEFC stacks and balance of plant components were selected. The complete system was packaged, which resulted in a volume of 187.5 l. After achieving a stable and reproducible stack performance based on a modified break-in procedure, a maximum power of 3.3 kWe was demonstrated in a single stack. Despite the strong deviation from design points resulting from a malfunctioning stack, all system functions could be validated. By scaling-up the performance of the functioning stack to the level of two stacks, a power density of 35 We l−1 could be estimated, which is close to the 40 We l−1 target. Furthermore, the start-up time could be reduced to less than 22 min, which exceeds the 30 min target. These results may bring diesel-based fuel cell auxiliary power units a step closer to use in real applications, which is supported by the demonstrated indicators.

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Section: Reactor and System Designmentioning

confidence: 99%

Section: Reactor and System Designmentioning

confidence: 99%

A Compact, Self-Sustaining Fuel Cell Auxiliary Power Unit Operated on Diesel Fuel

et al. 2021

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“…Additive manufacturing (AM) is more and more used as a manufacturing technology to fabricate process equipment devices [1][2][3][4][5][6][7]. Applications are flow manifolds [8,9], nozzles [10][11][12][13], heat exchangers [14][15][16], reactors [17][18][19][20], and lattice structures [21][22][23]. For example, Fig.…”

Section: Introductionmentioning

confidence: 99%

Automated Knowledge‐Based Design for Additive Manufacturing: A Case Study with Flow Manifolds

Biedermann

Beutler

Meboldt

2022

Chemie Ingenieur Technik

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Additive manufacturing (AM) enables novel process equipment devices. However, the manual 3D design of complex part geometries is frequently challenging as designers need to fulfill functional requirements and consider the restrictions of AM. One promising approach is to automatically generate the design of parts. This work aims to introduce such an automated design approach to practitioners in the area of process engineering. The work describes the basic steps required to develop an automated, knowledge‐based design tool for AM and demonstrates the approach using a case study on flow manifolds.

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Investigation of LPBF A800H steel parts using Computed Tomography and Mössbauer spectroscopy

Gainov

Faidel

Behr

et al. 2020

Additive Manufacturing

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Highly integrated catalytic burner with laser-additive manufactured manifolds

Abstract: This paper describes a highly integrated catalytic burner for auxiliary power units based on PEM-fuel cells.

Cited by 5 publications

References 30 publications

A Compact, Self-Sustaining Fuel Cell Auxiliary Power Unit Operated on Diesel Fuel

A Compact, Self-Sustaining Fuel Cell Auxiliary Power Unit Operated on Diesel Fuel

Automated Knowledge‐Based Design for Additive Manufacturing: A Case Study with Flow Manifolds

Investigation of LPBF A800H steel parts using Computed Tomography and Mössbauer spectroscopy

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