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TECHNICAL PAPERS: Gas Turbines: Cycle Innovations

Handling of a Semiclosed Cycle Gas Turbine With a Carbon Dioxide-Argon Working Fluid

[+] Author and Article Information
Inaki Ulizar

Industria de Turbopropulsores—Ajalvir, Torrejon de Ardoz, Madrid, Spain

Pericles Pilidis

School of Mechanical Engineering, Cranfield University, Cranfield, Bedford, U.K.

J. Eng. Gas Turbines Power 122(3), 437-441 (May 15, 2000) (5 pages) doi:10.1115/1.1287497 History: Received March 09, 1999; Revised May 15, 2000
Copyright © 2000 by ASME
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References

Ulizar, I., and Pilidis, P., 1997, “Design of a Semiclosed Cycle Gas Turbine with Carbon Dioxide-Argon as Working Fluid,” ASME Paper 97-GT-125.
Ulizar, I., and Pilidis, P., 1996, “GTSI, Simulation of Gas Turbines with Unorthodox Working Fluids and Fuels,” Turbomacchine 96. Italian Thermotechnical Conference, Genova.
Palmer, J. R., 1983, “The TURBOMATCH scheme for Gas Turbine Performance Calculations,” users’ guide, Cranfield Institute of Technology, United Kingdom.
Keenan, J. H., Kaye, J., and Chao, J., Gas Tables, International Version.
Hunter, I. H., 1994, “Design of Turbomachinery for Closed and Semiclosed Gas Turbine Cycles,” M.Sc. thesis, Cranfield University, United Kingdom.
Navaratnam, M., 1994, “The Investigation of an Aeroderivative Gas Turbine Using Alternative Working Fluids in Closed and Semiclosed Cycles,” M.Sc. thesis, Cranfield University, United Kingdom.
Massardo,  A., and Satta,  A., 1990, “Axial Flow Compressor Design Optimization: Part. I—Pitchline Analysis and Multivariable Objective Function Influence,” ASME J. Turbomach., 112, pp. 399–404.
Massardo,  A., Satta,  A., and Marini,  M., 1990, “Axial Flow Compressor Design Optimization: Part II—Through Flow Analysis,” ASME J. Turbomach., 112, pp. 405–410.

Figures

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The semi-closed cycle engine
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(a) Off design performance—LPC operating line; (b) off design performance—HPC operating line
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(a) Gas turbine power output, starting; (b) starting—HPC shaft speed; (c) starting—variable stator angles; and (d) starting temperatures
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(a) Change of working fluid—change of speeds; (b) change of working fluid—temperatures; (c) change of working fluid—mass flow; and (d) change of working fluid—fuel flow (N. Gas)
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(a) Part load performance—power output; (b) part load performance—LPC stator angle; and (c) part load performance—mass flow

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