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TECHNICAL PAPERS: Gas Turbines: Industrial and Cogeneration

Cogenerative Below Ambient Gas Turbine (BAGT) Performance With Variable Thermal Power

[+] Author and Article Information
M. Bianchi, G. Negri di Montenegro, A. Peretto

Universitá di Bologna, Viale Risorgimento, 2, 40136 Bologna, Italia

J. Eng. Gas Turbines Power 127(3), 592-598 (Jun 24, 2005) (7 pages) doi:10.1115/1.1707032 History: Received December 01, 2001; Revised March 01, 2002; Online June 24, 2005
Copyright © 2005 by ASME
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References

Wilson, G. D., 1984, The Design of High-Efficiency Turbomachinery and Gas Turbine, M.I.T. Press, Cambridge, MA.
Tsujikawa, Y., Ohtani, K., Kaneko, K., Watanabe, T., and Fujii, S., 1999, “Conceptual Recovery of Exhaust Heat From a Conventional Gas Turbine by an Inter-Cooled Inverted Brayton Cycle,” ASME Paper No. 99-GT-0378.
Bianchi, M., Negri di Montenegro, G., and Peretto, A., 2000, “Inverted Brayton Cycle Employment for Low Temperature Cogenerative Applications,” ASME Paper No. 2000-GT-0315.
Bianchi, M., Negri di Montenegro, G., and Peretto, A., 2001, “Thermo-Economic Optimization of a Cogeneration Plant With Below Ambient Pressure Discharge Gas Turbine,” ASME Paper No. 2001-GT-209.
Bianchi, M., 2001, “Thermal Utility Influence on the Cogenerative Performance of a Below Ambient Pressure Discharge Gas Turbine (BAGT),” ASME International Mechanical Engineering Congress and Exposition, New York, November.
Thermoflex 6 Release 2, 2001, Thermoflow, Inc., Sudbury, MA.
“Gas Turbine World 1999–2000 Handbook,” 2000, Pequot Publishing, Inc., Fairfield, CT, Vol. 20.

Figures

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Equivalent cooling water mass flow rate versus heat-to-power ratio: comparison BAGT versus CC
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Schematic layout of a below ambient pressure discharge gas turbine (BAGT) in cogenerative application
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Second compressor inlet pressure versus second compressor inlet temperature
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Gas turbine electric efficiency versus heat-to-power ratio
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Combined cycle (CC) electric efficiency versus heat-to-power ratio for different bleed pressure
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Expander outlet, cooler and second compressor inlet temperatures (T4,T4, and T5) versus heat-to-power ratio
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Specific thermal power exchanged in the heat exchangers and in the cooler versus heat-to-power ratio
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BAGT electric efficiency versus heat-to-power ratio
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Equivalent cooling water mass flow rate versus heat-to-power ratio
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Gas turbine (GT) and combined cycle electric efficiencies versus electric power

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