Performance of a 10 kW SOFC Demonstration Unit

Halinen, Matias; Rautanen, Markus; Saarinen, Jaakko; Pennanen, Jari; Pohjoranta, Antti; Kiviaho, Jari; Pastula, Michael; Nuttall, Ben; Rankin, C.F.; Borglum, Brian

doi:10.1149/1.3569985

Cited by 33 publications

(12 citation statements)

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“…The system level experiments included in this work were carried out on a demonstration SOFC power unit hosted by VTT in Finland. The basic setup of the unit and especially the balance‐of‐plant parts of it, are described in and . For this work, the unit was refurbished with two new planar SOFC stacks of 119 cells each, provided by Elcogen Oy, Finland.…”

Section: Methodsmentioning

confidence: 99%

Online Total Harmonic Distortion Analysis for Solid Oxide Fuel Cell Stack Monitoring in System Applications

2018

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The applicability of online total harmonic distortion analysis (THDA) for the operation and monitoring of solid oxide fuel cell (SOFC) power systems is investigated by experiments as well as analysis of the algorithm, with a focus on the relationship between stack fuel utilization rate and the corresponding THD index. An online THDA algorithm is implemented in a programmable logic controller (PLC) and operated with a 6 kW SOFC power system demonstration unit. Laboratory experiments on the solid oxide fuel cell technology are carried out to determine key parameters for the algorithm. The embedded implementation of the THDA algorithm, including several modifications to reduce its computational load, and its parameterization is analyzed and the program code is given in the Appendix. The experimental results verify that THDA can be a reliable means for quantitatively monitoring the fuel utilization rate experienced by the stack and that the algorithm is simple to implement on an embedded controller.

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Section: Methodsmentioning

confidence: 99%

Online Total Harmonic Distortion Analysis for Solid Oxide Fuel Cell Stack Monitoring in System Applications

2018

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“…Nonetheless, several SOFC systems with AOR have already been demonstrated. Powell et al [6] operated an SOFC with AOR from 1.65 to 2.15 kWe with 57% to 53% DC net electrical efficiency, while Halinen et al [7,8] claim a 54% AC net electrical efficiency for a 10 kWe cross-flow SOFC with AOR.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Designing of a Radial Anode Off-Gas Recirculation Fan for Solid Oxide Fuel Cell Systems

Wagner

Wuillemin

Diethelm

et al. 2017

Journal of Electrochemical Energy Conversion and Storage

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To improve the industry benchmark of solid oxide fuel cell (SOFC) systems, we consider anode off-gas recirculation (AOR) using a small-scale fan. Evolutionary algorithms compare different system design alternatives with hot or cold recirculation. The system performance is evaluated through multi-objective optimization (MOO) criteria, i.e., maximization of electrical efficiency and cogeneration efficiency. The aerodynamic efficiency and rotordynamic stability of the high-speed recirculation fan is investigated in detail. The results obtained suggest that improvements to the best SOFC systems, in terms of net electrical efficiency, are achievable, including for small power scale (10 kWe).

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“…The basic concept of the module is presented in Figure 2 and equation 6(from refs. [17,23]), where P FC_in is the chemical power of the CO+H 2 mixture entering the module per second, P FC_out is the electrical power of the FC module,  FC_BoP is the share of electrical energy required by the balance of plant (BoP) and  FC_loss is the part of fuel not processed by the module through partial fuel utilization.…”

Section: Sofc Unitmentioning

confidence: 99%

Simulation of a SOFC/Battery powered vehicle

Bessékon

Zielke

Wulff

et al. 2019

International Journal of Hydrogen Energy

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Performance of a 10 kW SOFC Demonstration Unit

Cited by 33 publications

References 1 publication

Online Total Harmonic Distortion Analysis for Solid Oxide Fuel Cell Stack Monitoring in System Applications

Online Total Harmonic Distortion Analysis for Solid Oxide Fuel Cell Stack Monitoring in System Applications

Modeling and Designing of a Radial Anode Off-Gas Recirculation Fan for Solid Oxide Fuel Cell Systems

Simulation of a SOFC/Battery powered vehicle

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