Willich, Caroline and Henke, Moritz and Westner, Christina and Leucht, Florian and Bessler, Wolfgang G. and Kallo, Josef and Friedrich, K. Andreas (2012) Experiments and Modeling of Electrochemical Impedance Spectroscopy on Pressurized SOFC. ECS 222, 2012-10-07 - 2012-10-12, Honululu, Hawaii, USA.
PDF
- Only accessible within DLR
934kB |
Abstract
For this contribution a combined experimental and modeling approach was used. Impedance measurements were performed on a five-cell anode-supported SOFC short stack at pressures between 1 and 8 bar. Each cell has an active area of 84 cm². Impedance spectra were taken at OCV and increasing current densities up to 25 A. The multi-scale model used for the simulations is based on an in-house software [4] and is representing the system including the electrochemical reactions on the surface of the electrodes, gas transport within the porous electrodes and in the gas channels on cell level and the thermal coupling of five cells to include temperature-related effects on stack level. The model was validated with current/voltage characteristics and impedance measurements in a wide range of operating conditions
Item URL in elib: | https://elib.dlr.de/78329/ | ||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||||||||||
Title: | Experiments and Modeling of Electrochemical Impedance Spectroscopy on Pressurized SOFC | ||||||||||||||||||||||||||||||||
Authors: |
| ||||||||||||||||||||||||||||||||
Date: | 2012 | ||||||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||
Keywords: | PSOFC, Impedance, | ||||||||||||||||||||||||||||||||
Event Title: | ECS 222 | ||||||||||||||||||||||||||||||||
Event Location: | Honululu, Hawaii, USA | ||||||||||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||||||||||
Event Start Date: | 7 October 2012 | ||||||||||||||||||||||||||||||||
Event End Date: | 12 October 2012 | ||||||||||||||||||||||||||||||||
Organizer: | Electrochemical Society | ||||||||||||||||||||||||||||||||
HGF - Research field: | Energy | ||||||||||||||||||||||||||||||||
HGF - Program: | Efficient Energy Conversion and Use (old) | ||||||||||||||||||||||||||||||||
HGF - Program Themes: | Fuel Cells (old) | ||||||||||||||||||||||||||||||||
DLR - Research area: | Energy | ||||||||||||||||||||||||||||||||
DLR - Program: | E EV - Energy process technology | ||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | E - Elektrochemische Prozesse (old) | ||||||||||||||||||||||||||||||||
Location: | Stuttgart | ||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Engineering Thermodynamics > Electrochemical Energy Technology | ||||||||||||||||||||||||||||||||
Deposited By: | Willich, Caroline | ||||||||||||||||||||||||||||||||
Deposited On: | 19 Nov 2012 12:47 | ||||||||||||||||||||||||||||||||
Last Modified: | 24 Apr 2024 19:44 |
Repository Staff Only: item control page