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TECHNICAL PAPERS: Gas Turbines: Cycle Innovations

Alternative Multinutating Disk Engine Configurations for Diverse Applications

[+] Author and Article Information
T. Korakianitis

James Watt Professor of Mechanical Engineering, University of Glasgow, Glasgow G12 8QQ, UK

L. Meyer, M. Boruta

Kinetic R&D, Inc., South Elgin, IL 60177

H. E. McCormick

C–K Engineering, Inc., Ballwin, MO 63011

J. Eng. Gas Turbines Power 126(3), 482-488 (Aug 11, 2004) (7 pages) doi:10.1115/1.1688770 History: Received December 01, 2000; Revised March 01, 2001; Online August 11, 2004
Copyright © 2004 by ASME
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References

Figures

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(Left) stereolithography model of basic configuration; (center) one-disk compression-ratio variations; (right) multidisk shaft arrangement and compression-ratio variations
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Disk configurations: (a) one disk; (b) two intake and two expansion disks (de=di); and (c) two intake and two expansion disks (de>di)
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Illustration of p-V and T-s diagrams of thermodynamic models of the nutating engine (not to scale)
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Sea level static ηth and shaft power of a two-disk nutating engine with di=de=6-in. (Fig. 2(b)) at 3600 rpm
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Shaft power [kW] (top left), shaft power/engine dry mass [kW/kg] (bottom left), and shaft power/engine volume occupied [kW/lt] (bottom right) versus thermal efficiency for a two-disk engine with intake disk diameter di=6 in. as a function of expansion disk diameter de (Fig. 2(c)) compression ratio rc and maximum theoretical cycle temperature Tmx
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Constant rc=15 with di=de=4 in.: (left) ηth; (right) power [kW]
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Maximizing ηth by varying rc=withdi=de=4 in.: (left) ηth; (center) power [kW]; (right) rc
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Maximizing power [kW] by varying rc=withdi=de=4 in.: (left) ηth; (center) power [kW]; (right) rc
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Maximizing ηth by varying rc=withdi=4 in.,de=3.5 in.: (left) ηth; (center) power [kW]; (right) rc
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Maximizing power [kW] by varying rc=withdi=4 in.,de=3.5 in.: (left) ηth; (center) power [kW]; (right) rc
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Maximizing ηth by varying rc=withdi=4 in.,de=5.7 in.: (left) ηth; (center) power [kW]; (right) rc
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Maximizing power [kW] by varying rc=withdi=4 in.,de=5.7 in.: (left) ηth; (center) power [kW]; (right) rc

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