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Operating Characteristics of a Natural Gas-Fired Homogeneous Charge Compression Ignition Engine (Performance Improvement Using EGR)
Technical Paper
2001-01-1034
ISSN: 0148-7191, e-ISSN: 2688-3627
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Event:
SAE 2001 World Congress
Language:
English
Abstract
Although Homogeneous Charge Compression Ignition (HCCI) engines are expected to attain higher thermal efficiency while reducing NOx emission, the operation performance suffers under high load conditions. In a previous report, we have showed the basic operating characteristics of a natural gas-fired HCCI engine. The present study focuses on the characteristics of HCCI combustion using cooled EGR. It was found that with EGR the load increased by over 20% compared with the previous baseline case. Furthermore, effects of inhomogeneity are investigated by varying EGR supply methods. Inhomogeneous EGR narrows a suitable operation range for EGR and modifies the heat release pattern, indicative of the inhomogeneity to possibly regulate HCCI combustion.
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Morimoto, S., Kawabata, Y., Sakurai, T., and Amano, T., "Operating Characteristics of a Natural Gas-Fired Homogeneous Charge Compression Ignition Engine (Performance Improvement Using EGR)," SAE Technical Paper 2001-01-1034, 2001, https://doi.org/10.4271/2001-01-1034.Also In
References
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