Development and Testing of Innovative SOFC System Prototype with Staged Stack Connection for Efficient Stationary Power and Heat Generation

Bachmann, John Albert; Posdziech, Oliver; Pianko‐Oprych, Paulina; Kaisalo, Noora; Pennanen, Jari

doi:10.1149/07801.0133ecst

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…As a consequence, the electrical power decreased almost half for both 90 -cells and 240 -cells SOFC stacks. Differences in comparison with data 18 under 47% load are higher and they are in the order of 7-8%. It was the result of lack of knowledge of the porosity and tortuosity of the electrodes values.…”

Section: Resultsmentioning

confidence: 65%

Numerical analysis of a serial connection of two staged SOFC stacks in a CHP system fed by methane using Aspen TECH

Pianko‐Oprych

Palus

2019

Polish Journal of Chemical Technology

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The objective of the study was to develop a steady-state system model in Aspen TECH using user-defined subroutines to predict the SOFC electrochemical performance. In order to achieve high overall fuel utilization and thus high electrical efficiency, a concept of Combined Heat and Power system with two-stage SOFC stacks of different number of cells was analyzed. The concept of two-stage SOFC stacks based system was developed in the framework of the FP7 EU-funded project STAGE-SOFC. The model was validated against data gathered during the operation of the proof-of-concept showing good agreement with the comparative simulation data. Following model validation, further simulations were performed for different values of fuel utilization to analyze its influence on system electrical performance. Simulation results showed that the concept of two-stage SOFC stacks configuration was viable and reliable. The model can be useful for development the optimal control strategy for system under safe conditions.

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Section: Resultsmentioning

confidence: 65%

Numerical analysis of a serial connection of two staged SOFC stacks in a CHP system fed by methane using Aspen TECH

Pianko‐Oprych

Palus

2019

Polish Journal of Chemical Technology

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“…The V-I results at the current densities lower than 0.1 A cm −2 were lower than the experimental one. The reason for weaker agreement with data [32,33] …”

Section: Steady-state Modelling Resultsmentioning

confidence: 85%

Dynamic Analysis of Load Operations of Two-Stage SOFC Stacks Power Generation System

Pianko‐Oprych

Hosseini

2017

Energies

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Abstract:The main purpose of this paper was to develop a complete dynamic model of a power generation system based on two serially connected solid oxide fuel cell stacks. The uniqueness of this study lies in a different number of fuel cells in the stacks. The model consists of the electrochemical model, mass and energy balance equations implemented in MATLAB Simulink environment. Particular attention has been paid to the analysis of the transient response of the reformers, fuel cells and the burner. The dynamic behavior of the system during transient conditions was investigated by load step changing. The model evaluates electrical and thermal responses of the system at variable drawn current. It was found that a decrease of 40% in the 1st stage and 2nd solid oxide fuel cell (SOFC) stacks drawn current caused both stacks temperature to drop by 2%. An increase of the cell voltage for the 1st and 2nd SOFC stacks led to very fast steam reformer response combined with a slight decrease in reformer temperature, while a considerable burner temperature increase of 70 K can be observed. Predictions of the model provide the basic insight into the operation of the power generation-based SOFC system during various transients and support its further design modifications.

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Numerical analysis of a highly efficient cascade solid oxide fuel cell system with a fuel regenerator

Kim

Kang

2023

Applied Energy

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Development and Testing of Innovative SOFC System Prototype with Staged Stack Connection for Efficient Stationary Power and Heat Generation

Cited by 7 publications

References 2 publications

Numerical analysis of a serial connection of two staged SOFC stacks in a CHP system fed by methane using Aspen TECH

Numerical analysis of a serial connection of two staged SOFC stacks in a CHP system fed by methane using Aspen TECH

Dynamic Analysis of Load Operations of Two-Stage SOFC Stacks Power Generation System

Numerical analysis of a highly efficient cascade solid oxide fuel cell system with a fuel regenerator

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