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Characteristics of Combustion Pressure Vibration in Hydrogen Fuel Injection Hot Surface Ignition Engines
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English
Abstract
In high pressure hydrogen injection hot surface ignition engines under nearly all engine operating conditions combustion pressure vibration is generated just after ignition. As a result of many experimental investigations the true nature for the cause of this interesting phenomenon was found and are listed:
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(1)
This phenomenon probably originates from the extremely high local rate of burning of the hydrogen-air mixture.
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(2)
Accompaning the stronger combustion pressure vibration was an increase in engine vibration and noise with increase in NOx emission and higher piston temperature.
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(3)
Longer ignition delay resulted in a steeper pressure-time diagram which resalted in a stronger combustion pressure vibration.
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(4)
The phenomenon had negligible effect on engine performance.
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(5)
The phenomenon can be prevented by premixing a ceratain quantity of hydrogen gas into the intake air stream. The result was a shortened ignition delay.
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Citation
Takiguchi, M., Pichainarong, P., Matsushita, T., and Furuhama, S., "Characteristics of Combustion Pressure Vibration in Hydrogen Fuel Injection Hot Surface Ignition Engines," SAE Technical Paper 871611, 1987, https://doi.org/10.4271/871611.Also In
SAE 1987 Transactions Alternative Engines and Engine Components and Systems
Number: V96-5; Published: 1988-09-01
Number: V96-5; Published: 1988-09-01
References
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