FOSSIL FUEL SAVINGS, CARBON EMISSION REDUCTION AND ECONOMIC ATTRACTIVENESS OF MEDIUM-SCALE INTEGRATED BIOMASS GASIFICATION COMBINED CYCLE COGENERATION PLANTS

Abstract

Abstract. The paper theoretically investigates the system made up of fluidized bed gasifier, SGT-100 gas turbine and bottoming steam cycle. Different configurations of the combined cycle plant are examined. A comparison is made between systems with producer gas (PG) and natural gas (NG) fired turbine. Supplementary firing of the PG in a heat recovery steam generator is also taken into account. The performance of the gas turbine is investigated using in-house built Engineering Equation Solver model. Steam cycle is modeled using GateCycleTM simulation software. The results are compared in terms of electric energy generation efficiency, CO2 emission and fossil fuel energy savings. Finally there is performed an economic analysis of a sample project. The results show relatively good performance in the both alternative configurations at different rates of supplementary firing. Furthermore, positive values of economic indices were obtained.

Keywords

Dates

  • Submission Date2012-01-26
  • Revision Date2012-03-06
  • Acceptance Date2012-04-16

DOI Reference

10.2298/TSCI120126124K

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