Energy and economic comparison of SOFC-GT, MCFC-GT, and SOFC-MCFC-GT hybrid systems

Document Type : Research Paper

Author

1Department of mechanical engineering, Graduate University of advanced technology, Kerman, Iran

Abstract

Conversion of fossil fuels to electrical power is the most popular method of electrical power generation. Due to the depletion of fossil fuels and the increase in air pollution, the necessity of using high efficiency power generation systems is increasing. High temperature fuel cells, such as solid oxide fuel cells (SOFC) and molten carbonate fuel cells (MCFC), have high efficiency. According to the high operation temperature of these fuel cells, there is the possibility of combination of them with gas turbines (GT) to reach to a higher efficiency. In the present study, the SOFC-GT hybrid system, the MCFC-GT hybrid system, and the new SOFC-MCFC-GT hybrid system are compared from an energy and economic point of view. The results show that the MCFC-GT has the highest efficiency but its annualized cost is greater than the others. The new SOFC-MCFC-GT hybrid system is more efficient than the SOFC-GT hybrid system for low current density, high fuel utilization, and high air utilization. This new hybrid system has lower annualized cost than MCFC-GT hybrid system.

Keywords

Main Subjects

References

        [1]        Ameri M. and Mohammadi R., “Simulation of an atmospheric SOFC and gas turbine hybrid system using Aspen Plus software”, Int. J. Energy Resources, 2011, 37:412.
        [2]        Dang Z., Zhao H. and Xi G., “Conceptual Design and Performance Analysis of SOFC/Micro Gas Turbine Hybrid Distributed Energy System”, J. Fuel Cell Science and Technology, 2015, 12:031003/1.
        [3]        Massardo A. F. and Magistri L., “Internal Reforming Solid Oxide Fuel Cell Gas Turbine Combined Cycles (IRSOFC-GT)—Part II: Exergy and Thermoeconomic Analyses”, J. Engineering for Gas Turbines and Power, 2003, 125:67.
        [4]        Sreeramulu M. and Gupta A. V. S. S. K. S., “Exergy analysis of gas turbine – solid oxide fuel cell-based combined cycle power plant”, Int. J. Energy Technology and Policy, 2011, 7:469.
        [5]        Fatahian E., Tonekaboni N. and Fatahian H., “Exergy Analysis of Combined Cycle of Gas Turbine and Solid Oxide Fuel Cell in Different Comparison Ratios”, Int. J. Scientific World 2016, 4:43.
        [6]        Khani L., Saberi Mehr A., Yari M. and Mahmoudi S. M. S., “Multi-objective optimization of an indirectly integrated solid oxide fuel cell-gas turbine cogeneration system”, Int. J. Hydrogen Energy, 2016, 41:21470.
        [7]        Arsalis A., “Thermoeconomic Modeling and Parametric Study of Hybrid Solid Oxide Fuel Cell-Gas Turbine-Steam Turbine Power Plants Ranging From 1.5 MWe to 10 MWe”, J. power sources, 2008, 181:313.
        [8]        Eveloy V., Karunkeyoon W., Rodgers P. and Al Alili A., “Energy, exergy and economic analysis of an integrated solid oxide fuel cell-gas turbine-organic Rankine power generation system”, Int. J. Hydrogen Energy, 2016, 41:13843.
        [9]        Shirazi A., Aminyavari M., Najafi B., Rinaldi F. and Razaghi M., “Thermal-economic-environmental analysis and multi-objective optimization of an internal-reforming solid oxide fuel cell-gas turbine hybrid system”, Int. J. Hydrogen Energy, 2012, 37:19111.
      [10]      Haghighat Mamaghani A., Najafi B., Shirazi A. and Rinaldi F., “Exergetic, economic, and environmental evaluations and multi-objective optimization of a combined molten carbonate fuel cell-gas turbine system”, Applied Thermal Engineering 2015, 77:1.
      [11]      Zhang X., Liu H., Ni M. and Chen J., “Performance evaluation and parametric optimum design of a syngas molten carbonate fuel cell and gas turbine hybrid system”, Renewable Energy, 2015, 80:407.
      [12]      Haghighat Mamaghani A., Najafi B., Shirazi A. and Rinaldi F., “4E analysis and multi-objective optimization of an integrated MCFC (molten carbonate fuel cell) and ORC (organic Rankine cycle) system”, Energy, 2015, 82:650.
      [13]      El-Emam R. S. and Dincer I., “Energy and exergy analyses of a combined molten carbonate fuel cell- Gas turbine system”, Int. J. Hydrogen Energy, 2011, 36:8927.
      [14]      Chan S. H., Ho H. K. and Tian Y., “Modelling of simple hybrid solid oxide fuel cell and gas turbine power plant”, J. Power Sources, 2002, 109:111.
      [15]      Volkan Akkaya A., “Electrochemical Model for Performance Analysis of a Tubular SOFC”, Int. J. Energy Research, 2007, 31:79.
      [16]      Yuh C. Y. and Selman J. R., “The polarization of molten carbonate fuel cell electrodes: I. analysis of steady-state polarization data”, J. Electrochemical Society, 1991, 138:3642.
      [17]      Yuh C. Y. and Selman J. R., “The polarization of molten carbonate fuel cell electrodes: II. characterization by AC impedance and response to current interruption”, J. Electrochemical Society, 1991, 138:3649.
      [18]      Sadeghi S. and Ameri M., “Study the Combination of Photovoltaic Panels with Different Auxiliary Systems in Grid-Connected Condition”, J. Solar Energy Engineering, 2014, 136:636.
Hydrogen, Fuel Cell & Energy Storage
Volume 4, Issue 4 - Serial Number 16
December 2017
Pages 275-287

Files

Share

How to cite

Statistics