Modeling of Proton-Conducting Solid Oxide Fuel Cells Fueled with Syngas

Energies

Meng Ni²  Zongping Shao¹ 

[1] State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry & Chemical Engineering, Nanjing University of Technology, No. 5 Xin Mofan Road, Nanjing 210009, China; E-Mail:;Department of Building and Real Estate, the Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

关键词: proton-conducting solid oxide fuel cells;    mathematical modeling;    coupled transport and reaction;    syngas;    water gas shift reaction;    computational fluid dynamics;    electrochemistry;   

DOI  :  10.3390/en7074381

来源: mdpi

【 摘 要 】

Solid oxide fuel cells (SOFCs) with proton conducting electrolyte (H-SOFCs) are promising power sources for stationary applications. Compared with other types of fuel cells, one distinct feature of SOFC is their fuel flexibility. In this study, a 2D model is developed to investigate the transport and reaction in an H-SOFC fueled with syngas, which can be produced from conventional natural gas or renewable biomass. The model fully considers the fluid flow, mass transfer, heat transfer and reactions in the H-SOFC. Parametric studies are conducted to examine the physical and chemical processes in H-SOFC with a focus on how the operating parameters affect the H-SOFC performance. It is found that the presence of CO dilutes the concentration of H₂, thus decreasing the H-SOFC performance. With typical syngas fuel, adding H₂O cannot enhance the performance of the H-SOFC, although water gas shift reaction can facilitate H₂ production.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.