TY - JOUR
T1 - Investigation of microcombustion reforming of ethane/air and micro-Tubular Solid Oxide Fuel Cells
AU - Milcarek, Ryan J.
AU - Nakamura, Hisashi
AU - Tezuka, Takuya
AU - Maruta, Kaoru
AU - Ahn, Jeongmin
N1 - Funding Information:
This material is based upon work supported by an agreement with Syracuse University awarded by its Syracuse Center of Excellence for Environmental and Energy Systems with funding under prime award number DE-EE0006031 from the US Department of Energy and matching funding under award number 53367 from the New York State Energy Research and Development Authority (NYSERDA), under NYSERDA contract 61736 and NEXUS-NY. This material is also based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. 1746928 and the National Science Foundation Graduate Research Opportunities Worldwide. Part of the work was carried out under the Collaborative Research Project of the Institute of Fluid Science, Tohoku University, supported by JSPS KAKENHI Grant Number JP16H06068 and the corresponding author was a JSPS International Research Fellow.
Funding Information:
This material is based upon work supported by an agreement with Syracuse University awarded by its Syracuse Center of Excellence for Environmental and Energy Systems with funding under prime award number DE-EE0006031 from the US Department of Energy and matching funding under award number 53367 from the New York State Energy Research and Development Authority (NYSERDA) , under NYSERDA contract 61736 and NEXUS-NY . This material is also based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. 1746928 and the National Science Foundation Graduate Research Opportunities Worldwide. Part of the work was carried out under the Collaborative Research Project of the Institute of Fluid Science, Tohoku University , supported by JSPS KAKENHI Grant Number JP16H06068 and the corresponding author was a JSPS International Research Fellow. DFFC Direct flame fuel cell F Faraday constant FFC Flame-assisted fuel cell FREI Flame with repetitive extinction and ignition GC Gas chromatograph I Current LSCF Lanthanum strontium cobalt ferrite mT-FFC micro-tubular flame-assisted fuel cell mT-SOFC micro-tubular solid oxide fuel cell n fuel Molar flow rate of fuel n air Molar flow rate of air n fuel S Molar flow rate of fuel for stoichiometric reaction n air S Molar flow rate of air for stoichiometric reaction SDC Samaria-doped Ceria SOFC Solid oxide fuel cell V M Molar volume at standard conditions V fuel Flowrate of propane YSZ Yttria stabilized zirconia, (Y 2 O 3 ) 0.08 (ZrO 2 ) 0.92 Φ Equivalence ratio ε F.U. Fuel utilization
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/2/29
Y1 - 2020/2/29
N2 - 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 °C, 900 °C and 1000 °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 ~64% is achieved. Long term testing and comparison with a H2 baseline is reported.
AB - 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 °C, 900 °C and 1000 °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 ~64% is achieved. Long term testing and comparison with a H2 baseline is reported.
KW - Flame-assisted fuel cell (FFC)
KW - Micro flow reactor
KW - Microcombustion
KW - Solid oxide fuel cell (SOFC)
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U2 - 10.1016/j.jpowsour.2019.227606
DO - 10.1016/j.jpowsour.2019.227606
M3 - Article
AN - SCOPUS:85076410387
SN - 0378-7753
VL - 450
JO - Journal of Power Sources
JF - Journal of Power Sources
M1 - 227606
ER -