Geometry optimization study of ejector in anode recirculation solid oxygen fuel cell system

Author

Zhu, Yinhai ; Jiang, Peixue

Author_Institution

Dept. of Thermal Eng., Tsinghua Univ., Beijing, China

fYear

2011

fDate

21-23 June 2011

Firstpage

51

Lastpage

55

Abstract

Computational Fluid Dynamics (CFD) technique is employed to investigate the effects of four geometry parameters: nozzle divergent part length, nozzle exit position, mixing chamber length and diffuser length on the performance of ejector in the solid oxide fuel cell (SOFC) system. 216 simulation cases are conducted to fully study the influence of four parameters on the ejector performance and steam to carbon ratio (STCR) under a wide range of working conditions. Optimum values of the four parameters can provide a general guideline for design of compact and high-performance ejectors.

Keywords

computational fluid dynamics; nozzles; solid oxide fuel cells; CFD technique; SOFC; anode recirculation solid oxygen fuel cell system; computational fluid dynamics; ejector performance; mixing chamber; nozzle divergent; nozzle exit position; steam to carbon ratio; Anodes; Cathodes; Computational fluid dynamics; Fuel cells; Fuels; Geometry; Thermal engineering; SOFC; ejector; fuel cell; modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications (ICIEA), 2011 6th IEEE Conference on

Conference_Location

Beijing

ISSN

pending

Print_ISBN

978-1-4244-8754-7

Electronic_ISBN

pending

Type

conf

DOI

10.1109/ICIEA.2011.5975549

Filename

5975549