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TECHNICAL PAPERS: Internal Combustion Engines

The Development of a Dual-Injection Hydrogen-Fueled Engine With High Power and High Efficiency

[+] Author and Article Information
Y. Y. Kim, Jong T. Lee

School of Mechanical Engineering, Sungkyunkwan University, Jangan-gu, Suwon 440-746, Korea

J. A. Caton

Department of Mechanical Engineering, Texas A&M University, College Station, TX 77840

J. Eng. Gas Turbines Power 128(1), 203-212 (Nov 22, 2005) (10 pages) doi:10.1115/1.1805551 History: Received January 20, 2003; Revised April 23, 2004; Online November 22, 2005
Copyright © 2006 by ASME
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References

Figures

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Theoretical p-V diagrams of the dual-injection hydrogen engine cycle for early and late direct-injection timing
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Schematic cutaway diagram of the high-pressure hydrogen injector of ball-valve type with solenoid actuator
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The poppet valve face with a shape of ball in the high-pressure hydrogen injector
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Five types of the injection hole configurations
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The leakage flow rate of the high-pressure hydrogen injector as a function of the number of injections
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Photograph of the dual-injection hydrogen engine
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Schematic diagram of experimental apparatus
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The torque and the intake air flow of the dual-injection hydrogen engine with external mixture
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The torque and the BFL equivalence ratio of the external mixture for each intake injection pressure
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The torque and the brake thermal efficiency of direct-cylinder injection for each injection pressure as a function of injection timing
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The brake thermal efficiency and where backfire occurs for external mixture and direct-cylinder injection with the change of the amount of external mixture
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The heat release per cycle and the fuel-air equivalence ratio of the dual-injection hydrogen engine
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The torque and the thermal efficiency in the transient region with the change of Rfe
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Three types of processes how to change injection method in the transient region
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The comparison of in-cylinder pressure of the dual injection with that of direct cylinder injection
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The combustion duration of the dual-injection hydrogen engine at each Rfe
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The minimum spark advance for best torque of the dual-injection hydrogen engine as a function of load
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The fuel mass flow rate and COVimep of the dual-injection hydrogen engine as a function of load
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The comparison of the torque and the thermal efficiency of the dual-injection engine with that of external mixture and that of direct injection

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