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Determination of Optimized Parameters for the Flexible Operation of a Biomass-Fueled, Microscale Externally Fired Gas Turbine (EFGT)

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  • Mathhar Bdour

    (Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Torgauer Straße 116, 04347 Leipzig, Germany
    School of Natural Resources Engineering and Management, Department of Energy Engineering, German-Jordanian University, PO Box 35247, Amman 11180, Jordan)

  • Mohammad Al-Addous

    (School of Natural Resources Engineering and Management, Department of Energy Engineering, German-Jordanian University, PO Box 35247, Amman 11180, Jordan)

  • Michael Nelles

    (Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Torgauer Straße 116, 04347 Leipzig, Germany
    Faculty of Agricultural and Environmental Sciences, Department Waste Management and Material Flow, University of Rostock, Justus-von-Liebig-Weg 6, 18051 Rostock, Germany)

  • Andreas Ortwein

    (Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Torgauer Straße 116, 04347 Leipzig, Germany)

Abstract

Biomass as a source of renewable energy is a promising solution for current problems in energy supply. Olive waste is considered as an interesting option, especially for Mediterranean countries. Within this paper, a microscale externally fired gas turbine (EFGT) technology is presented as a decentralized power plant, within the range of 15 kW th , based on olive residues. It was modeled by Aspen Plus 8.6 software to provide a sufficient technical study for such a plant. Optimized parameters for pressure ratio and turbine air-mass flow have been mapped for several loads to provide information for process control. For all cases, mechanical output, efficiency curves, and back-work ratio have been calculated. Using this information, typical plant sizes and an example of power production are discussed. Additionally, achievable energy production from olive waste is estimated on the basis of this data. The results of this study show that such a plant has an electrical efficiency of 5%–17%. This variation is due to the examination being performed under several combustion temperatures, actual load, heat exchanger temperatures, and heat transfer efficiency. A cost estimation of the discussed system showed an estimated capital cost of 33,800 to 65,300 € for a 15 kW th system.

Suggested Citation

  • Mathhar Bdour & Mohammad Al-Addous & Michael Nelles & Andreas Ortwein, 2016. "Determination of Optimized Parameters for the Flexible Operation of a Biomass-Fueled, Microscale Externally Fired Gas Turbine (EFGT)," Energies, MDPI, vol. 9(10), pages 1-15, October.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:10:p:856-:d:81176
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    References listed on IDEAS

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    1. Jan Hari Arti Khalsa & Frank Döhling & Florian Berger, 2016. "Foliage and Grass as Fuel Pellets–Small Scale Combustion of Washed and Mechanically Leached Biomass," Energies, MDPI, vol. 9(5), pages 1-16, May.
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