DocumentCode :
3090158
Title :
Performance analysis of integrated gasifier-solid oxide fuel cell power plants with different system configurations
Author :
Liu, Ming ; Aravind, P.V. ; Woudstra, T. ; Cobas, V.R.M. ; Verkooijen, A.H.M.
Author_Institution :
Energy Technol. Sect., Delft Univ. of Technol., Delft, Netherlands
Volume :
1
fYear :
2011
fDate :
8-9 Sept. 2011
Firstpage :
42
Lastpage :
45
Abstract :
It is desirable to use renewable fuel sources for solid oxide fuel cells (SOFCs) for future combined heat and power (CHP) generation. Biosyngas from biomass gasification is a candidate thanks to the sustainability and the practical carbon neutrality of the biomass resources. Performance of integrated gasifier-SOFC power plants with two different fuel cell system configurations is presented. The integrated system includes a downdraft fixed-bed gasifier, a gas cleaning system and a SOFC CHP system. Anode outlet gas recirculation is employed in one configuration and direct fuel delivery to the anode without recirculation is employed in the other. The results show that system configuration influences the system performance. The integrated system with a direct biosyngas delivery to the fuel cell stack has higher system efficiencies with 21% for the net AC electrical efficiency, 54% for the total CHP system efficiency and 22% for the system exergy efficiency, while the system with ejector-driven anode recirculation gives lower net AC electrical efficiency of 13%, the total CHP system efficiency of 49% and the system exergy efficiency of 15%.
Keywords :
cogeneration; fuel gasification; renewable energy sources; solid oxide fuel cells; anode outlet gas recirculation; biomass gasification; biosyngas; combined heat and power generation; downdraft fixed-bed gasifier; gas cleaning system; integrated gasifier-solid oxide fuel cell power plants; performance analysis; renewable fuel sources; Anodes; Biomass; Carbon; Cleaning; Fuel cells; Fuels; Power generation; SOFC; biomass; gasification; power generation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Engineering and Automation Conference (PEAM), 2011 IEEE
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-9691-4
Type :
conf
DOI :
10.1109/PEAM.2011.6134791
Filename :
6134791
Link To Document :
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