Autors: Gechev, T. M., Punov, P. B.
Title: Combined cycles of SOFC/ICE and SOFC/GT – A brief review
Keywords: combined cycle, SOFC, ICE, GT, hydrogen, energy, cogeneratio

Abstract: Solid oxide fuel cells (SOFCs) are a new technology for production of electricity through processing of different fuels such as natural gas or hydrogen. SOFCs are advantageous over other fuel cells due to their high efficiency (up to 65%), the usage of cheap catalysts and the low requirements towards fuel purity. They produce low amounts of harmful gases, which makes them viable in the context of contemporary strict emission regulations. Moreover, SOFCs can be combined with an internal combustion engine or a gas turbine, which utilize the residual anode-off gases of the cell to guarantee even higher efficiency and versatility of the system over standalone-SOFC layouts. Such systems can be applied in stationary combined heat and power generation, and for propulsion in the heavy-duty transportation. In the paper the basics of the technology, its possible applications, and the topologies for building a combined cycle, are reviewed with emphasis on system effectiveness and feasibility.


  1. International Energy Agency, Global Energy Review (2021) Available from: net/assets/d0031107-401d-4a2f-a48b-9eed19457335/GlobalEnergyReview2021.pdf
  2. S. Shiva Kumar and V. Himabindu, “Hydrogen production by PEM water electrolysis – A review”, Materials Science for Energy Technologies 2, pp. 442–454 (2019)
  3. J.O. Abe, A.P.I. Popoola, E. Ajenifuja, and O.M. Popoola, “Hydrogen energy, economy and storage: Review and recommendation”, International Journal of Hydrogen Energy 44, 15072 (2019)
  4. I.P. Jain, “Hydrogen the fuel for 21st century”, International Journal of Hydrogen Energy 34, 7368 (2009)
  5. V.S. Bagotsky, Fuel Cells Problems and Solutions (John Wiley & Sons) (2012)
  6. A.G. Olabi, T. Wilberforce, and M.A. Abdelkareem, “Fuel cell application in the automotive industry and future perspective”, Energy 214, 118955 (2021)
  7. M. Andersson and J. Froitzheim, Technology Review – Solid Oxide Cells (2019) Available from: https://
  8. A. Buonomano, F. Calise, M. Dentice, A. Palombo, and M. Vicidomini, “Hybrid solid oxide fuel cells – gas turbine systems for combined heat and power: A review" Applied Energy 156, pp. 32–85 (2015)
  9. M. Ehsani, Y. Gao, S. Longo, and K. Ebrahimi, Modern Electric, Hybrid Electric, and Fuel Cell Vehicles, Third edit (CRC Press) (2018)
  10. Q. Bkour et al., “Enhancing the partial oxidation of gasoline with Mo-doped Ni catalysts for SOFC applications: An integrated experimental and DFT study”, Applied Catalysis B: Environmental 266, 118626 (2020)
  11. K. Sasaki, K. Watanabe, K. Shiosaki, K. Susuki, and Y. Teraoka, “Multi-fuel capability of solid oxide fuel cells”, Journal of Electroceramics 13, pp. 669–675 (2004)
  12. R. Küngas et al., “eCOs - A Commercial CO2 Electrolysis System Developed by Haldor Topsoe”, ECS Transactions 78, 2879 (2017)
  13. T. Wilberforce et al. “Development of Bi-polar plate design of PEM fuel cell using CFD techniques”, International Journal of Hydrogen Energy 42, 25663 (2017)
  14. T. Wilberforce, A. Alaswad, A. Palumbo, M. Dassisti, and A.G. Olabi, “Advances in stationary and portable fuel cell applications”, International Journal of Hydrogen Energy 41, 16509 (2016)
  15. O.B. Inal and C. Deniz, “Assessment of fuel cell types for ships: Based on multi-criteria decision analysis”, Journal of Cleaner Production 265, 121734 (2020)
  16. C. Spiegel et al., Designing and Building Fuel Cells Library of Congress Cataloging-in-Publication Data (2007)
  17. L. Van Biert, M. Godjevac, K. Visser, and P. V Aravind, “A review of fuel cell systems for maritime applications”, Journal of Power Sources 327, pp. 345–364 (2016)
  18. X. Zhang, Y. Jin, D. Li, and Y. Xiong, “A review on recent advances in micro-tubular solid oxide fuel cells”, Journal of Power Sources 506, 230135 (2021)
  19. M.A. Azizi and J. Brouwer, “Progress in solid oxide fuel cell-gas turbine hybrid power systems: System design and analysis, transient operation, controls and optimization”, Applied Energy 215, pp. 237–289 (2018)
  20. A.S. Martinez, J. Brouwer, and G.S. Samuelsen, “Feasibility study for SOFC-GT hybrid locomotive power part II. System packaging and operating route simulation”, Journal of Power Sources 213, pp. 358–374 (2012)
  21. A.S. Martinez, J. Brouwer, and G.S. Samuelsen, “Comparative analysis of SOFC-GT freight locomotive fueled by natural gas and diesel with onboard reformation”, Applied Energy 148, pp. 421–438 (2015)
  22. O. Siddiqui and I. Dincer, “A review on fuel cell-based locomotive powering options for sustainable transportation”, Arabian Journal for Science and Engineering 44, pp. 677–693 (2019)
  23. Z. Ji, J. Qin, K. Cheng, F. Guo, S. Zhang, and P. Dong, “Comparative performance analysis of solid oxide fuel cell turbine-less jet engines for electric propulsion airplanes: Application of alternative fuel”, Aerospace Science and Technology 93, 105286 (2019)
  24. M.D. Fernandes et al., “SOFC-APU systems for aircraft: A review”, International Journal of Hydrogen Energy 43, pp. 16311–16333 (2018)
  25. H. Sapra, J. Stam, J. Reurings, L. Van Biert, and W. Van Sluijs, “Integration of solid oxide fuel cell and internal combustion engine for maritime applications”, Applied Energy 281, 115854 (2021).
  26. J. Rechberger, A. Kaupert, J. Hagerskans, and L. Blum, “Demonstration of the First European SOFC APU on a Heavy Duty Truck”, Transportation Research Procedia 14, pp. 3676–3685 (2016)
  27. European Comission, Communication COM/2020/301: A Hydrogen Strategy for a Climate-Neutral Europe. (2020) Available from: from=EN
  28. A. Kovac, M. Paranos, and D. Marcius, "Hydrogen in energy transition: A review" International Journal of Hydrogen Energy 46, pp. 10016–10035 (2021)
  29. S.H. Park, Y.D. Lee, and K.Y. Ahn, “Performance analysis of an SOFC/HCCI engine hybrid system: System simulation and thermo-economic comparison”, International Journal of Hydrogen Energy 39, pp. 1799–1810 (2014)
  30. S.K. Park and T.S. Kim, “Comparison between pressurized design and ambient pressure design of hybrid solid oxide fuel cell – gas turbine systems”, Journal of Power Sources 163, pp. 490–499 (2006)
  31. M. Gandiglio, A. Lanzini, P. Leone, M. Santarelli, and R. Borchiellini, “Thermoeconomic analysis of large solid oxide fuel cell plants: Atmospheric vs. pressurized performance”, Energy 55, pp. 142–155 (2013)
  32. H. Wang, Z. Yu, D. Wang, G. Li, and G. Xu, “Energy, exergetic and economic analysis and multi-objective optimization of atmospheric and pressurized SOFC based trigeneration systems”, Energy Conversion and Management 239, 114183 (2021)
  33. X. Zhang et al., “A review of integration strategies for solid oxide fuel cells”, Journal of Power Sources 195, pp. 685–702 (2010)
  34. M. Vojdani, I. Fakhari, and P. Ahmadi, “A novel triple pressure HRSG integrated with MED/SOFC/GT for cogeneration of electricity and freshwater: Techno-economic-environmental assessment, and multi-objective optimization”, Energy Conversion and Management 233, 113876 (2021)
  35. F. Calise, M. Dentice d’ Accadia, L. Vanoli, and M.R. von Spakovsky, “Full load synthesis/design optimization of a hybrid SOFC-GT power plant”, Energy 32, pp. 446–458 (2007)
  36. F. Calise, M. Dentice d’ Accadia, L. Vanoli, and M.R. von Spakovsky, “Single-level optimization of a hybrid SOFC-GT power plant”, Journal of Power Sources 159, pp. 1169–1185 (2006)
  37. S.H. Chan, H.K. Ho, and Y. Tian, “Multi-level modeling of SOFC-gas turbine hybrid system”, International Journal of Hydrogen Energy 28, pp. 889–900 (2003)
  38. T.W. Song et al., “Performance analysis of a tubular solid oxide fuel cell/micro gas turbine hybrid power system based on a quasi-two dimensional model”, Journal of Power Sources 142, pp. 30–42 (2005)
  39. W.J. Yang et al., “Design performance analysis of pressurized solid oxide fuel cell / gas turbine hybrid systems considering temperature constraints”, Journal of Power Sources 160, pp. 462–473 (2006)
  40. Y. Duk, K. Young, T. Morosuk, and G. Tsatsaronis, “Exergetic and exergoeconomic evaluation of a solidoxide fuel-cell-based combined heat and power generation system”, Energy Conversion and Management 85, pp. 154–164 (2014)
  41. Y. Zhao, J. Sadhukhan, A. Lanzini, N. Brandon, and N. Shah, “Optimal integration strategies for a syngas fuelled SOFC and gas turbine hybrid”, Journal of Power Sources 196, pp. 9516–9527 (2011)
  42. X. Lv, X. Ding, and Y. Weng, “Performance analysis of island energy system of SOFC and GT with gasified biomass fuel”, Energy Procedia 159, pp. 406–411 (2019)
  43. F. Ishak, I. Dincer, and C. Zam, “Energy and exergy analyses of direct ammonia solid oxide fuel cell integrated with gas turbine power cycle”, Journal of Power Sources 212, pp. 73–85 (2012)
  44. D. Cocco and V. Tola, “Externally reformed solid oxide fuel cell – micro-gas turbine (SOFC – MGT) hybrid systems fueled by methanol and di-methyl-ether (DME)”, Energy 34, pp. 2124–2130 (2009)
  45. Mitsubishi Heavy Industries, Demonstration of SOFC-Micro Gas Turbine (MGT) Hybrid Systems for Commercialization (2017) Available from:
  46. S.H. Park, Y.D. Lee, and K.Y. Ahn, “Performance analysis of an SOFC/HCCI engine hybrid system: System simulation and thermo-economic comparison”, International Journal of Hydrogen Energy 39, pp. 1799–1810 (2014)
  47. Y.D. Lee, K.Y. Ahn, T. Morosuk, and G. Tsatsaronis, “Exergetic and exergoeconomic evaluation of an SOFCEngine hybrid power generation system”, Energy 145, pp. 810–822 (2018)
  48. J. Kim, Y. Kim, W. Choi, K.Y. Ahn, and H.H. Song, “Analysis on the operating performance of 5-kW class solid oxide fuel cell-internal combustion engine hybrid system using spark-assisted ignition”, Applied Energy 260, 114231 (2020)
  49. Z. Wu, P. Tan, P. Zhu, W. Cai, B. Chen, F. Yang, Z. Zhang, E. Porpatham, and M. Ni, “Performance analysis of a novel SOFC-HCCI engine hybrid system coupled with metal hydride reactor for H2 addition by waste heat recovery”, Energy Conversion and Management 191, pp. 119–131 (2019)
  50. P. Zhu, J. Yao, C. Qian, F. Yang, and E. Porpatham, “High-efficiency conversion of natural gas fuel to power by an integrated system of SOFC, HCCI engine, and waste heat recovery: Thermodynamic and thermo-economic analyses”, Fuel 275, 117883 (2020)
  51. Z. Wu, P. Zhu, J. Yao, S. Zhang, J. Ren, F. Yang, and Z. Zhang, “Combined biomass gasification, SOFC, IC engine, and waste heat recovery system for power and heat generation: Energy, exergy, exergoeconomic, environmental (4E) evaluations”, Applied Energy 279, 115794 (2020).
  52. S. Kang and K. Ahn, “Dynamic modeling of solid oxide fuel cell and engine hybrid system for distributed power generation”, Applied Energy 195, pp. 1086–1099 (2017).
  53. Y.S. Kim, Y.D. Lee, and K.Y. Ahn, “System integration and proof-of-concept test results of SOFC–engine hybrid power generation system”, Applied Energy 277, 115542 (2020).
  54. W. Choi, J. Kim, Y. Kim, and H.H. Song, “Solid oxide fuel cell operation in a solid oxide fuel cell–internal combustion engine hybrid system and the design point performance of the hybrid system”, Applied Energy 254, 113681 (2019).
  55. F.D.F. Chuahy and S.L. Kokjohn, “Solid oxide fuel cell and advanced combustion engine combined cycle: A pathway to 70% electrical efficiency”, Applied Energy 235, pp. 391–408 (2019).


AIP Conference Proceedings, vol. 2557, issue 1, pp. Code 060002, 2022, United States, American Institute of Physics Inc., DOI 10.1063/5.0103862

Copyright American Institute of Physics Inc.

Вид: пленарен доклад в национален форум с межд. уч., публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus