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Numerical Analysis of Ignition Control in HCCI Engine
Technical Paper
2003-01-1817
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The UNIBUS (Uniform Bulky Combustion System) based on the HCCI (Homogeneous Charge Compression Ignition) concept uses an early injection quantity, timing, boost pressure, EGR, etc. for ignition control [1]. To further expand the operation range from the present level, the effects of the atmospheric conditions on ignition and combustion were calculated using CHEMKIN in the present study. When controlling the start timing of the high temperature reaction to suppress the early ignition, it is more effective to apply EGR than boost pressure. If fuel quantity is increased to expand load, it is possible to suppress a sharp cylinder pressure rising rate by increasing the boost pressure. Furthermore, it has become apparent that the cause of this is an increase in heat capacity.
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Hasegawa, R., Sakata, I., Koyama, T., and Yanagihara, H., "Numerical Analysis of Ignition Control in HCCI Engine," SAE Technical Paper 2003-01-1817, 2003, https://doi.org/10.4271/2003-01-1817.Also In
Premixed Charge Ci Engines & Diesel Spray & Mixture Formation
Number: SP-1794; Published: 2003-06-24
Number: SP-1794; Published: 2003-06-24
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