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Investigation of Biomass Integrated Air Gasification Regenerative Gas Turbine Power Plants

Author

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  • Momin Elhadi Abdalla

    (Chemical Engineering Department, University of Khartoum, Khartoum 11111, Sudan)

  • Salah Ahmed Abdalla

    (Energy Research Centre, University of Khartoum, Khartoum 11115, Sudan)

  • Syed Ali Ammar Taqvi

    (Department of Chemical Engineering, NED University of Engineering & Technology, Karachi 75270, Pakistan)

  • Salman Raza Naqvi

    (School of Chemical & Materials Engineering, National University of Sciences & Technology, Islamabad 44000, Pakistan)

  • Wei-Hsin Chen

    (Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan
    Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan
    Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan)

Abstract

The results show that Wood Chips of Acacia Nilotica trees available in Sudan lands can be successfully used in the gasification process and, on the same basis, as a bio-renewable energy resource. Simulation models were used to characterize the air gasification process integrated with a Regenerative Gas Turbine Unit. The results revealed that at a moisture content of 12%, gasification temperature of 1500 K, pressure of 20 bar, and air-like gasification medium, the biomass gasifier’s flow rate is higher at higher syngas rates. The results verified that there is an optimum ER for each syngas rate, in which the slow growth of the ER revealed the maximum gasifier biomass flow rate. For ER growth at lower levels, the specific fuel consumption (SFC) of the RGT Unit declines sharply from the maximum value reached at 0.27 kg/kW·h at an ER of 5% to the minimum value reached at 0.80 kg/kW·h at an ER of 25% for the lowest gasification temperature of 1000 K. Moreover, ER growths at low levels have a significant effect on the RGT plant’s performance, leading to increased RGT thermal efficiency. The increase in the biomass moisture content led to a sharp decrease in the RGT thermal efficiency. The RGT thermal efficiency remains high at higher gasification pressure. The results revealed that the syngas lower heating value remains high at lower produced syngas rates. At the optimum ER, the H 2 mole fraction depicted a value of 1.25%, 0.85% of CO, and 10.50% of CH 4 for a lower heating value of 38 MJ/kg syngas. It is shown that the gasification air entered into the gasifier decreases amid the increase in the biomass moisture content. At different syngas rates (3–10 kg/s) and optimum ER, the results predicted that the Wood Chip biomass flow rates decrease when the gasifier efficiency increases. The simulation model revealed that ER growths at lower levels have a significant effect on increasing the power of the RGT plant.

Suggested Citation

  • Momin Elhadi Abdalla & Salah Ahmed Abdalla & Syed Ali Ammar Taqvi & Salman Raza Naqvi & Wei-Hsin Chen, 2022. "Investigation of Biomass Integrated Air Gasification Regenerative Gas Turbine Power Plants," Energies, MDPI, vol. 15(3), pages 1-18, January.
  • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:741-:d:728974
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    References listed on IDEAS

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    1. Naqvi, Salman Raza & Naqvi, Muhammad & Ammar Taqvi, Syed Ali & Iqbal, Farukh & Inayat, Abrar & Khoja, Asif Hussain & Mehran, Muhammad Taqi & Ayoub, Muhammad & Shahbaz, Muhammad & Saidina Amin, Nor Ais, 2021. "Agro-industrial residue gasification feasibility in captive power plants: A South-Asian case study," Energy, Elsevier, vol. 214(C).
    2. 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.
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    Cited by:

    1. Abdul Waheed & Salman Raza Naqvi & Imtiaz Ali, 2022. "Co-Torrefaction Progress of Biomass Residue/Waste Obtained for High-Value Bio-Solid Products," Energies, MDPI, vol. 15(21), pages 1-20, November.

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