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Energy analysis of a cogeneration plant using coal gasification and solid oxide fuel cell

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  • Ghosh, S.
  • De, S.

Abstract

This paper presents a conceptualized combined heat and power (CHP) scheme based on coal gasification and with a high temperature, pressurized solid oxide fuel cell (SOFC) in the topping cycle and a bottoming steam cogeneration cycle. An energy analysis is done for this CHP plant. The study reveals that such a plant offers a substantial saving in fuel with respect to separate plants for the same power and utility heat. The total power of the plant optimizes at a pressure ratio for a given cell operating temperature. However, this optimum pressure ratio increases with higher cell operating temperatures. On the other hand, the utility heat rate decreases with the increasing pressure ratio for any cell operating temperature. In a combined effect of these utility outputs (i.e. power and utility heat), the overall performance of the plant, expressed by fuel energy savings ratio (FESR), is found to optimize at a particular pressure ratio for a given cell operating temperature. For example, the maximum FESR is found to be 30% for an optimum pressure ratio of about 18 for a cell operating temperature of 1273K.

Suggested Citation

  • Ghosh, S. & De, S., 2006. "Energy analysis of a cogeneration plant using coal gasification and solid oxide fuel cell," Energy, Elsevier, vol. 31(2), pages 345-363.
    • Handle: RePEc:eee:energy:v:31:y:2006:i:2:p:345-363
    DOI: 10.1016/j.energy.2005.01.011
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    2. Mehrpooya, Mehdi & Sharifzadeh, Mohammad Mehdi Moftakhari & Mousavi, Seyed Ali, 2019. "Evaluation of an optimal integrated design multi-fuel multi-product electrical power plant by energy and exergy analyses," Energy, Elsevier, vol. 169(C), pages 61-78.
    3. Li, Fang-zhou & Kang, Jing-xian & Song, Yun-cai & Feng, Jie & Li, Wen-ying, 2020. "Thermodynamic feasibility for molybdenum-based gaseous oxides assisted looping coal gasification and its derived power plant," Energy, Elsevier, vol. 194(C).
    4. Ashina, Shuichi & Nakata, Toshihiko, 2008. "Quantitative analysis of energy-efficiency strategy on CO2 emissions in the residential sector in Japan - Case study of Iwate prefecture," Applied Energy, Elsevier, vol. 85(4), pages 204-217, April.
    5. Igor Donskoy, 2023. "Techno-Economic Efficiency Estimation of Promising Integrated Oxyfuel Gasification Combined-Cycle Power Plants with Carbon Capture," Clean Technol., MDPI, vol. 5(1), pages 1-18, February.
    6. Turan, Onder & Aydin, Hakan, 2014. "Exergetic and exergo-economic analyses of an aero-derivative gas turbine engine," Energy, Elsevier, vol. 74(C), pages 638-650.
    7. Taufiq, Bin Nur & Kikuchi, Yasunori & Ishimoto, Takayoshi & Honda, Kuniaki & Koyama, Michihisa, 2015. "Conceptual design of light integrated gasification fuel cell based on thermodynamic process simulation," Applied Energy, Elsevier, vol. 147(C), pages 486-499.
    8. Prabu, V. & Jayanti, S., 2012. "Underground coal-air gasification based solid oxide fuel cell system," Applied Energy, Elsevier, vol. 94(C), pages 406-414.
    9. Chen, Xiaohang & Wang, Yuan & Zhao, Yingru & Zhou, Yinghui, 2016. "A study of double functions and load matching of a phosphoric acid fuel cell/heat-driven refrigerator hybrid system," Energy, Elsevier, vol. 101(C), pages 359-365.
    10. Seitarides, Th. & Athanasiou, C. & Zabaniotou, A., 2008. "Modular biomass gasification-based solid oxide fuel cells (SOFC) for sustainable development," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(5), pages 1251-1276, June.
    11. Ashina, Shuichi & Nakata, Toshihiko, 2008. "Energy-efficiency strategy for CO2 emissions in a residential sector in Japan," Applied Energy, Elsevier, vol. 85(2-3), pages 101-114, February.
    12. Roy, Dibyendu & Roy, Sumit & Smallbone, Andrew & Roskilly, Anthony Paul, 2024. "Assessing the techno-economic viability of a trigeneration system integrating ammonia-fuelled solid oxide fuel cell," Applied Energy, Elsevier, vol. 357(C).
    13. Rokni, Masoud, 2014. "Biomass gasification integrated with a solid oxide fuel cell and Stirling engine," Energy, Elsevier, vol. 77(C), pages 6-18.

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