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Effect of pressure on internal reforming in SOFC

Willich, Caroline and Henke, Moritz and Westner, Christina and Leucht, Florian and Bessler, Wolfgang G. and Kallo, Josef and Friedrich, K. Andreas (2012) Effect of pressure on internal reforming in SOFC. Fuel Cell 2012 Science and technology, Berlin, Deutschland. (Unpublished)

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Abstract

The increasing demand for electrical energy requires the development of power plants with high efficiencies and low emissions. Hybrid power plants consisting of an SOFC system coupled with a gas turbine promise to fulfil both requirements reaching electrical efficiencies above 60% [1]. They can also be used for a large range of applications from several 10 kW to multiple MW and can use natural gas from the existing grid. The German Aerospace Center (DLR) is aiming at the demonstration of the stable operation of a hybrid power plant in the 50 kW class in which the SOFC will be operated at elevated pressures. For the realisation of the power plant the effects of pressure on SOFC has to be understood, therefore the behaviour of SOFC at pressures ranging from 1 to 8 bar with varying fuel gas composition (H2/N2 mixture and reformate gases with different methane content) and different temperatures was examined experimentally in a specially designed setup [2]. Current-voltage characteristics and gas analysis at the anode were performed to examine the influence of pressure on OCV, power density at constant voltage and constant current as well as on gas composition at the cell for different fuels. Power density increases of up to 70% were found. Simulations were used to better understand the experimentally obtained results.

Item URL in elib:https://elib.dlr.de/76534/
Document Type:Conference or Workshop Item (Speech)
Title:Effect of pressure on internal reforming in SOFC
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Willich, CarolineUNSPECIFIEDUNSPECIFIED
Henke, MoritzUNSPECIFIEDUNSPECIFIED
Westner, ChristinaUNSPECIFIEDUNSPECIFIED
Leucht, FlorianUNSPECIFIEDUNSPECIFIED
Bessler, Wolfgang G.UNSPECIFIEDUNSPECIFIED
Kallo, JosefUNSPECIFIEDUNSPECIFIED
Friedrich, K. AndreasUNSPECIFIEDUNSPECIFIED
Date:2012
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Unpublished
Keywords:PSOFC, internal reforming, pressure
Event Title:Fuel Cell 2012 Science and technology
Event Location:Berlin, Deutschland
Event Type:international Conference
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E EV - Energy process technology (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:07 Aug 2012 11:24
Last Modified:07 Aug 2012 11:24

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