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<p>This study developed a solid oxide fuel cell (SOFC) based hybrid power generation system consisting gas turbine (GT) and transcritical CO<sub>2</sub> (tCO<sub>2</sub>) cycle. The tCO<sub>2</sub> cycle was used a heat recovery cycle to enhance the performance of the SOFC based hybrid system. Exergy, energy, environmental and economic investigation was performed numerically using engineering equation software. The results showed that the proposed hybrid plant (SOFC-GT-tCO<sub>2</sub> cycle) performed 7.50% better than the traditional SOFC-GT system in terms of energy efficiency, net power output, and exergy efficiency. However, there was a 6.95% decrease in CO<sub>2</sub> emissions per MWh of power output and overall cost rate of the proposed hybrid plant went up by 6.20%.</p>

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Thermodynamic, environmental and economic investigation of a solid oxide fuel cell based hybrid power generation system using transcritical CO2 cycle

  • 期刊论文

  • 发表日期：

    2026年3月6日

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  • Yunis Khan,
  • Aftab Anjum,
  • Shashi Gandhar,
  • Abhishek Gandhar,
  • P. M. G. Bashir Asdaque,
  • Rohit Kumar Singh Gautam

摘要

This study developed a solid oxide fuel cell (SOFC) based hybrid power generation system consisting gas turbine (GT) and transcritical CO2 (tCO2) cycle. The tCO2 cycle was used a heat recovery cycle to enhance the performance of the SOFC based hybrid system. Exergy, energy, environmental and economic investigation was performed numerically using engineering equation software. The results showed that the proposed hybrid plant (SOFC-GT-tCO2 cycle) performed 7.50% better than the traditional SOFC-GT system in terms of energy efficiency, net power output, and exergy efficiency. However, there was a 6.95% decrease in CO2 emissions per MWh of power output and overall cost rate of the proposed hybrid plant went up by 6.20%.