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Energies 2016, 9(10), 856; doi:10.3390/en9100856

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

1
Deutsches Biomasseforschungszentrum gemeinnützige GmbH, Torgauer Straße 116, 04347 Leipzig, Germany
2
School of Natural Resources Engineering and Management, Department of Energy Engineering, German-Jordanian University, PO Box 35247, Amman 11180, Jordan
3
Faculty of Agricultural and Environmental Sciences, Department Waste Management and Material Flow, University of Rostock, Justus-von-Liebig-Weg 6, 18051 Rostock, Germany
*
Authors to whom correspondence should be addressed.
Academic Editor: Robert Lundmark
Received: 2 August 2016 / Revised: 29 September 2016 / Accepted: 12 October 2016 / Published: 22 October 2016
(This article belongs to the Special Issue Economics of Bioenergy 2016)
View Full-Text   |   Download PDF [2786 KB, uploaded 22 October 2016]   |  

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 kWth, 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 kWth system. View Full-Text
Keywords: olive waste; externally fired gas turbine (EFGT); combustion; bioenergy; flexible power generation olive waste; externally fired gas turbine (EFGT); combustion; bioenergy; flexible power generation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Bdour, M.; Al-Addous, M.; Nelles, M.; Ortwein, A. Determination of Optimized Parameters for the Flexible Operation of a Biomass-Fueled, Microscale Externally Fired Gas Turbine (EFGT). Energies 2016, 9, 856.

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