Thermoeconomic Analysis Of a Gasification Plant Fed By Woodchips And Integrated With SOFC And STIG Cycles

Andrea Mazzucco, Masoud Rokni

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Abstract

This paper presents a thermo-economic analysis of an integrated biogas-fueled solid oxide fuel cell (SOFC) system for electric power generation. Basic plant layout consists of a gasification plant (GP), an SOFC and a retrofitted gas turbine with steam injection (STIG). Different system configurations and simulations are presented and investigated. A parallel analysis for simpler power plants, combining GP, SOFC, and hybrid gas turbine (GT) is carried out to obtain a reference point for thermodynamic results. Thermodynamic analysis shows energetic and exergetic efficiencies for optimized plant above 53% and 43% respectively which are significantly greater than conventional 10 MWe plants fed by biomass. Thermo-economic analysis provides an average cost of electricity for best performing layouts close to 6.4 and 9.4 c€/kWe which is competitive within the market. A sensitivity analysis of the influence of SOFC stack cost on the generation cost is also presented. In order to discuss the investment cost, an economic analysis has been carried out by involving main parameters such as Net Present Value (NPV), Internal Rate of Return (IRR), Time of Return of Investment (TIR) are calculated and discussed.
Original languageEnglish
Title of host publicationProceedings of the 8th Conference on Sustainable Development of Energy, Water and Environment Systems
Number of pages21
Publication date2013
Publication statusPublished - 2013
Event8th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES 2013) - Dubrovnik, Croatia
Duration: 22 Sep 201327 Sep 2013
Conference number: 8
http://www.dubrovnik2013.sdewes.org/

Conference

Conference8th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES 2013)
Number8
CountryCroatia
CityDubrovnik
Period22/09/201327/09/2013
Internet address

Keywords

  • Gasification
  • Wood chips
  • SOFC
  • STIG
  • Techno-economic analysis
  • Thermo-economic analysis

Cite this

Mazzucco, A., & Rokni, M. (2013). Thermoeconomic Analysis Of a Gasification Plant Fed By Woodchips And Integrated With SOFC And STIG Cycles. In Proceedings of the 8th Conference on Sustainable Development of Energy, Water and Environment Systems