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

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2 Author(s)
Yinhai Zhu ; Dept. of Thermal Eng., Tsinghua Univ., Beijing, China ; Peixue Jiang

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.

Published in:

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

Date of Conference:

21-23 June 2011