TY - JOUR
T1 - Applicability of the SOFC technology for coupling with biomass-gasifier systems
T2 - Short- and long-term experimental study on SOFC performance and degradation behaviour
AU - Subotić, Vanja
AU - Baldinelli, Arianna
AU - Barelli, Linda
AU - Scharler, Robert
AU - Pongratz, Gernot
AU - Hochenauer, Christoph
AU - Anca-Couce, Andres
N1 - Funding Information:
The authors gratefully acknowledge the financial support from the European H2020 project BRISK II (Biofuels Research Infrastructure for Sharing Knowledge II, project number 731101 ).
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/12/15
Y1 - 2019/12/15
N2 - Coupling biomass gasification with high temperature Solid Oxide Fuel Cells (SOFCs) is a promising solution to increase the share of renewables and reduce emissions. The quality of the producer gas used can, however, significantly impact the SOFC durability and reliability. The great challenge is to ensure undisturbed operation of such system and to find a trade-off between optimal SOFC operating temperature and system thermal integration, which may limit the overall efficiency. Thus, this study focuses on experimental investigation of commercial SOFC single cells of industrial size fueled with different representative producer gas compositions of industrial relevance at two relevant operating temperatures. The extensive experimental and numerical analyses performed showed that feeding SOFC with a producer gas from a downdraft gasifier, with hot gas cleaning, at an operating temperature of 750 °C represents the most favorable setting, considering system integration and the highest fuel utilization. Additionally, a 120 h long-term test was carried out, showing that a long-term operation is possible under stated operating conditions. Local degradation took place, which can be detected at an early stage using appropriate online-monitoring tools.
AB - Coupling biomass gasification with high temperature Solid Oxide Fuel Cells (SOFCs) is a promising solution to increase the share of renewables and reduce emissions. The quality of the producer gas used can, however, significantly impact the SOFC durability and reliability. The great challenge is to ensure undisturbed operation of such system and to find a trade-off between optimal SOFC operating temperature and system thermal integration, which may limit the overall efficiency. Thus, this study focuses on experimental investigation of commercial SOFC single cells of industrial size fueled with different representative producer gas compositions of industrial relevance at two relevant operating temperatures. The extensive experimental and numerical analyses performed showed that feeding SOFC with a producer gas from a downdraft gasifier, with hot gas cleaning, at an operating temperature of 750 °C represents the most favorable setting, considering system integration and the highest fuel utilization. Additionally, a 120 h long-term test was carried out, showing that a long-term operation is possible under stated operating conditions. Local degradation took place, which can be detected at an early stage using appropriate online-monitoring tools.
KW - Biomass gasification
KW - Electrochemical analysis
KW - Solid Oxide Fuel Cell (SOFC)
KW - System integration
UR - http://www.scopus.com/inward/record.url?scp=85072576494&partnerID=8YFLogxK
U2 - 10.1016/j.apenergy.2019.113904
DO - 10.1016/j.apenergy.2019.113904
M3 - Article
AN - SCOPUS:85072576494
SN - 0306-2619
VL - 256
JO - Applied Energy
JF - Applied Energy
M1 - 113904
ER -