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TECHNICAL PAPERS: Manifold Gas Dynamics and Turbocharging

Investigation of a Large High- Speed Diesel Engine Transient Behavior Including Compressor Surging and Emergency Shutdown

[+] Author and Article Information
G. Theotokatos, N. P. Kyrtatos

Laboratory of Marine Engineering, Department of Naval Architecture and Marine Engineering, National Technical University of Athens, P.O. Box 64033, Zografos 15710, Athens, Greece

J. Eng. Gas Turbines Power 125(2), 580-589 (Apr 29, 2003) (10 pages) doi:10.1115/1.1559903 History: Received July 01, 2001; Revised March 01, 2002; Online April 29, 2003
Copyright © 2003 by ASME
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References

Figures

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CAT 3508—engine configuration
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Steady-state predicted and measured results at 1500 rpm
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CAT 3508—measured rack position and engine speed during load increase
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Compressor nondimensional torque coefficient versus flow coefficient (calculated from compressor map and its linear curve fit)
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Simulation results for engine load increase from 70% to 100% at 1500 rpm
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Compressor parameters versus CA for (a) engine cycle after 0.3 sec (70% load) and (b) engine cycle after 9.5 sec (100% load)
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Simulation results for engine transient operation at 1500 rpm—load changes 85%–10%–100%
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Simulation results for engine transient operation at 1250 rpm—load changes 85%–10%–90%
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Predicted compressor parameters for engine transient operation at 1250 rpm—load changes 85%–10%–90%
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Simulation results for engine transient operation at 1250 rpm and bypass opening—load changes 85%–10%–100%
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Simulation results for engine transient operation during emergency shutdown
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Predicted compressor parameters for engine transient operation during emergency shutdown

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