Investigation of microcombustion reforming of ethane/air and micro-Tubular Solid Oxide Fuel Cells

JOURNAL OF POWER SOURCES

卷:450

Article

Milcarek, Ryan J.¹  Nakamura, Hisashi²  Tezuka, Takuya²  Maruta, Kaoru²  Ahn, Jeongmin³ 

[1] Arizona State Univ, Sch Engn Matter Transport & Energy, 501 E Tyler Mall, Tempe, AZ 85287 USA

[2] Tohoku Univ, Inst Fluid Sci, Aoba Ku, Sendai, Miyagi 9808577, Japan

[3] Syracuse Univ, Dept Mech & Aerosp Engn, Syracuse, NY 13244 USA

关键词: Flame-assisted fuel cell (FFC);    Solid oxide fuel cell (SOFC);    Micro flow reactor;    Microcombustion;   

DOI  :  10.1016/j.jpowsour.2019.227606

来源: Elsevier

【 摘 要 】

Thermal partial oxidation, or fuel-rich combustion, is a non-catalytic option for reforming hydrocarbons to synthesis gas for direct conversion in micro-Tubular Solid Oxide Fuel Cells (SOFCs). A number of studies have demonstrated the potential of using heat recirculation to sustain combustion at high equivalence ratios, where the concentration of synthesis gas can be maximized, but few have connected the fuel-rich combustion reforming to SOFCs to understand how the reforming effects the electrochemical reactions. This study investigates microcombustion of ethane/air at equivalence ratios from 1.0 to 5.0, flow rates of 10-250 mL min(-1) and maximum wall temperatures of 800 degrees C, 900 degrees C and 1000 degrees C. The weak flame, flame with repetitive extinction and ignition (FREI) and normal flame regimes are characterized along with the exhaust composition at each condition. Micro-Tubular SOFCs (mT-SOFCs) open circuit voltage, polarization and power density are found to be effected by FREI. High fuel utilization of similar to 64% is achieved. Long term testing and comparison with a H-2 baseline is reported.

【 授权许可】

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