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TECHNICAL PAPERS: Gas Turbines: Advanced Energy Systems

Mirror Gas Turbines: A Newly Proposed Method of Exhaust Heat Recovery

[+] Author and Article Information
S. Fujii, K. Kaneko, K. Otani, Y. Tsujikawa

Department of Aerospace Engineering, Osaka Prefecture University, 1-1 Gakuen, Sakai, Osaka 599-8321, Japan

J. Eng. Gas Turbines Power 123(3), 481-486 (Oct 01, 2000) (6 pages) doi:10.1115/1.1366324 History: Received September 01, 2000; Revised October 01, 2000
Copyright © 2001 by ASME
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References

Wilson, D. G., 1985, The Design of High Efficiency Turbomachinery and Gas Turbine M.I.T. Press, Cambridge, MA.
Tsujikawa. Y., Kaneko, K, and Fujii, S., 2000, “Utilization of Cryogenic Energy of LNG by Mirror Gas Turbine” Paper No. 00-GT-0317, ASME Turbo Expo. Munich, Germany.

Figures

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Conceptual overview of inverted Brayton cycle
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Temperature and entropy diagram of inverted Brayton cycle
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Test rig of inverted Brayton cycle for idling operation
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Idling speeds at various temperature of turbine inlet
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Test rig for power generation
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Temperature and entropy diagram based on measured data
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Measured component efficiency
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Thermal efficiency of inverted Brayton cycle
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Measured compression and expansion ratio
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Number of intercooling steps and efficiency
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Temperature and entropy diagram of mirror gas turbine
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Comparisons of mirror and recuperated gas turbine: solid lines indicate mirror gas turbines: white small circle lines indicate recuperated gas turbines at working temperature of 800–1000 K of a heat exchanger
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Comparisons of mirror and recuperated gas turbines: dashed lines show recuperated gas turbines at working temperature of 750–800 K; white small circle lines indicate gas turbines with recuperator of 800–1000 K
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Comparisons of mirror and regenerative gas turbines; solid lines indicate mirror gas turbines: small circle and dashed lines are for recuperated gas turbines
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Comparisons of mirror and combined cycle gas turbines

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