TY - JOUR
T1 - Performance investigation of a micro-tubular flame-assisted fuel cell stack with 3,000 rapid thermal cycles
AU - Milcarek, Ryan J.
AU - Garrett, Michael J.
AU - Welles, Thomas S.
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) and under NYSERDA contract 61736 . This material is also based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. 1746928 .
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/8/1
Y1 - 2018/8/1
N2 - Solid oxide fuel cell research and development has faced challenges with slow startup, slow shutdown and a limited number of thermal cycles, which hinders the technology in areas like micro-combined heat and power. A novel micro combined heat and power system, based on a boiler/hot water heater with integrated micro-tubular flame assisted fuel cells (mT-FFCs), is proposed which requires rapid startup, shutdown and thousands of thermal cycles. A 9 cell mT-FFC stack is developed and operated in a two-stage combustor. Rapid startup and shutdown of the fuel cells is demonstrated. The first-stage combustor is ignited, turned off and re-ignited for a total of 3000 on/off, thermal cycles. A maximum heating rate of 966 °C.min−1 and a maximum cooling rate of 353 °C.min−1 is achieved while thermal cycling. Despite the presence of CO in the exhaust, the anode remains porous and crack free after ∼150 h of thermal cycling testing. The mT-FFC stack continues to generate significant power, even after completing the cycling test, and a low voltage degradation rate is reported.
AB - Solid oxide fuel cell research and development has faced challenges with slow startup, slow shutdown and a limited number of thermal cycles, which hinders the technology in areas like micro-combined heat and power. A novel micro combined heat and power system, based on a boiler/hot water heater with integrated micro-tubular flame assisted fuel cells (mT-FFCs), is proposed which requires rapid startup, shutdown and thousands of thermal cycles. A 9 cell mT-FFC stack is developed and operated in a two-stage combustor. Rapid startup and shutdown of the fuel cells is demonstrated. The first-stage combustor is ignited, turned off and re-ignited for a total of 3000 on/off, thermal cycles. A maximum heating rate of 966 °C.min−1 and a maximum cooling rate of 353 °C.min−1 is achieved while thermal cycling. Despite the presence of CO in the exhaust, the anode remains porous and crack free after ∼150 h of thermal cycling testing. The mT-FFC stack continues to generate significant power, even after completing the cycling test, and a low voltage degradation rate is reported.
KW - Flame-assisted fuel cell (FFC)
KW - Lean-burn (RQL) combustor
KW - Micro-combined heat and power (micro-CHP)
KW - Micro-tubular solid oxide fuel cell (mT-SOFC)
KW - Quick-mix
KW - Rich-burn
KW - Two-stage burner
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U2 - 10.1016/j.jpowsour.2018.05.060
DO - 10.1016/j.jpowsour.2018.05.060
M3 - Article
AN - SCOPUS:85047117353
SN - 0378-7753
VL - 394
SP - 86
EP - 93
JO - Journal of Power Sources
JF - Journal of Power Sources
ER -