In the context of the reduction of the carbon dioxide emissions as prescribed by the Kyoto protocol, this paper describes a thermodynamic performance analysis of new gas turbine combined cycles with no emissions of and nitrogen oxides. Three new similar cycles belonging to the same typology are proposed. These cycles use water/steam as working fluid, which is compressed in liquid and vapor phase, and the internal combustion process, which takes place between syngas and pure oxygen. The top Brayton cycle and the bottom Rankine cycle are integrated together. The syngas is produced by steam-natural gas reforming with internal chemical heat recovery. The produced in the combustion is captured simply by water condensation from the exhaust gas and liquefied to be stored. A simulation analysis has been performed to evaluate the net efficiency and the net specific work of the cycles. Varying the most important operative variables and using the least-square regression and factorial design techniques, a very large sensitivity analysis has permitted the highlighting of performance behavior of the cycles. Including the energy penalty due to the liquefaction of and to the oxygen production and adopting standard operative conditions, the LHV-based net efficiency and the net specific work may exceed 50% and 1000 kJ/kg, respectively.
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October 2003
Technical Papers
Thermodynamic Performance Analysis of New Gas Turbine Combined Cycles With No Emissions of Carbon Dioxide
R. Gabbrielli,
R. Gabbrielli
Universita` di Pisa, Dipartimento di Energetica, via Diotisalvi 2, Pisa 56126, Italy
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R. Singh
R. Singh
School of Mechanical Engineering, Cranfield University, Cranfield, Bedfordshire MK43, 0AL, UK
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R. Gabbrielli
Universita` di Pisa, Dipartimento di Energetica, via Diotisalvi 2, Pisa 56126, Italy
R. Singh
School of Mechanical Engineering, Cranfield University, Cranfield, Bedfordshire MK43, 0AL, UK
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Amsterdam, The Netherlands, June 3–6, 2002; Paper No. 2002-GT-30117. Manuscript received by IGTI, Dec. 2001, final revision, Mar. 2002. Associate Editor: E. Benvenuti.
J. Eng. Gas Turbines Power. Oct 2003, 125(4): 940-946 (7 pages)
Published Online: November 18, 2003
Article history
Received:
December 1, 2001
Revised:
March 1, 2002
Online:
November 18, 2003
Citation
Gabbrielli, R., and Singh, R. (November 18, 2003). "Thermodynamic Performance Analysis of New Gas Turbine Combined Cycles With No Emissions of Carbon Dioxide ." ASME. J. Eng. Gas Turbines Power. October 2003; 125(4): 940–946. https://doi.org/10.1115/1.1610017
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