Publication: Effect of anode-cathode exhaust gas recirculation on energy recuperation in a solid oxide fuel cell-gas turbine hybrid power system
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Issued Date
2016
Resource Type
File Type
application/pdf
ISSN
3605442
Other identifier(s)
2-s2.0-84956866318
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Energy. Vol 94, (2016), p.218-232
Suggested Citation
Saebea D., Authayanun S., Patcharavorachot Y., Arpornwichanop A. Effect of anode-cathode exhaust gas recirculation on energy recuperation in a solid oxide fuel cell-gas turbine hybrid power system. Energy. Vol 94, (2016), p.218-232. doi:10.1016/j.energy.2015.10.138 Retrieved from: https://hdl.handle.net/20.500.14740/5955
Abstract
A solid oxide fuel cell-gas turbine (SOFC-GT) hybrid system supplying liquid fuel as ethanol exhibits promise as an auxiliary power unit. In this study, the recirculation of anode and cathode exhaust gas in the SOFC-GT system is proposed to improve the efficiency of heat management in the SOFC-GT hybrid system. The key operating parameters, such as fuel utilization factor and the cell and GT temperatures, are analyzed in terms of the performance of the SOFC-GT hybrid systems. The simulation results show that the recirculation of anode and cathode exhaust gas has a direct impact on the turbine performance. To maintain the inlet temperature of the small turbine in the range of 873-1223 K, the amount of fuel and air added to the combustor to control the turbine inlet temperature on the system performance is also investigated. A SOFC-GT hybrid system with both anode and cathode exhaust gas recirculation achieves the highest system and thermal efficiency. © 2015 Elsevier Ltd.
Subject(s)
Anodes
Cathodes
Combustion
Electrodes
Ethanol
Exhaust gas recirculation
Fuel cells
Gas turbines
Gases
Hybrid systems
Anode cathodes
Auxiliary power units
Energy recuperation
Hybrid power systems
Operating parameters
Thermal efficiency
Turbine inlet temperature
Turbine performance
Solid oxide fuel cells (SOFC)
Electrode
Energy efficiency
Ethanol
Fuel cell
Performance assessment
Thermal power
Turbine
Cathodes
Combustion
Electrodes
Ethanol
Exhaust gas recirculation
Fuel cells
Gas turbines
Gases
Hybrid systems
Anode cathodes
Auxiliary power units
Energy recuperation
Hybrid power systems
Operating parameters
Thermal efficiency
Turbine inlet temperature
Turbine performance
Solid oxide fuel cells (SOFC)
Electrode
Energy efficiency
Ethanol
Fuel cell
Performance assessment
Thermal power
Turbine