Abstract
The Homogeneous Charge Compression Ignition (HCCI) engine is the combination of both Spark Ignition (SI-Engine or Otto-Engine) and Compression Ignition (Diesel Engine). It uses homogeneous fuel-air mixtures as the SI-engine does and uses typically high compression ratio that allowed mixture to auto-ignite as the diesel engine does. The lean homogenous mixture in HCCI reduces particulate emissions and lean fuel-air mixture helps auto-ignite which is reducing the emission of oxide of nitrogen NOx about 90-98%. It is reported that the HCCI engine offer an increase in fuel efficiency of up to 15-30%, compared with the SI engine. However, HCCI works well only over a relatively narrow operating range, unless engine geometry or operational parameters are adjusted. In HCCI engines combustion is initiated via homogenous charge, and there is no direct in-cylinder mechanism to control auto-ignition. This review paper is focused on HCCI engines performance, challenges, methods to induce combustions, controller design and future direction and trends.
Original language | English |
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Title of host publication | Proceedings of 2011 17th International Conference on Automation and Computing, ICAC 2011 |
Pages | 315-320 |
Number of pages | 6 |
Publication status | Published - 19 Dec 2011 |
Event | 2011 17th International Conference on Automation and Computing, ICAC 2011 - Huddersfield, United Kingdom Duration: 10 Sep 2011 → 10 Sep 2011 |
Conference
Conference | 2011 17th International Conference on Automation and Computing, ICAC 2011 |
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Country/Territory | United Kingdom |
City | Huddersfield |
Period | 10/09/11 → 10/09/11 |
Keywords
- control autoignition
- emission
- fuel efficient
- HCCI engine
- internal combustion engine