Simulation and thermodynamic analysis of a combined heat and power cycle based on solid oxide fuel cell in the building sector

Document Type : Original Article

Author

Assistant professor, Department of Mechanical engineering, Yadegar-e-Emam (RAH) Shahre-Rey branch, Islamic Azad University, Tehran, Iran

Abstract

In this research, thermodynamic modeling of a combined production cycle of heat and power is performed based on a solid oxide fuel cell for building sector applications. Initially, the thermodynamic assessment is explained by introducing the mentioned cycle and its respected modeling technique. Then, cycle simulation is performed using Cycle Tempo analytical software by simultaneously solving the mass, energy, and electrochemical equilibrium equations. Parametric analysis of the main characteristics influencing the performance of the cycle is assessed, and the appropriate operating conditions are determined after presenting the performance results. The results show that using this model, electric power of 14.00 kW, thermal power of 4.56 kW, heat to power ratio of 32% at net electrical efficiency of 58.5%, and total efficiency of 77.3% is achievable. These results also confirm the attractiveness of the proposed systems over other electricity and heat cogeneration technologies, which are based on gas engines or gas micro turbines. The system is highly recommended in administrative buildings and warm and warm/moderate climates considering the functionality of the proposed system in different heat to power ratios.

Keywords

References

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History

  • Receive Date: 25 July 2021
  • Revise Date: 07 September 2021
  • Accept Date: 09 September 2021

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