By mixing iso-octane with octane number 100 and normal heptane with octane number 0, it was possible to obtain a PRF fuel with octane rating between 0 and 100. The influence of PRF fuel’s octane number on the combustion characteristics, performance and emissions character of homogeneous charge compression ignition (HCCI) engine was investigated. The experiments were carried out in a single cylinder direct injection diesel engine. The test results show that, with the increase of the octane number, the ignition timing delayed, the combustion rate decreased, and the cylinder pressure decreased. The HCCI combustion can be controlled and then extending the HCCI operating range by burning different octane number fuel at different engine mode, which engine burns low octane number fuel at low load mode and large octane number fuel at large load mode. There exists an optimum octane number that achieves the highest indicated thermal efficiency at different engine load. With the increase of the PRF fuel octane number, NOx, HC and CO emissions increased, especially for HC emissions.
The Effect of PRF Fuel Octane Number on HCCI Operation
Sae Technical Papers
2004 Powertrain & Fluid Systems Conference & Exhibition ; 2004
2004-10-25
Conference paper
English
The Effect of PRF Fuel Octane Number on HCCI Operation
British Library Conference Proceedings | 2004
|The effect of PRF fuel octane number on HCCI operation
Automotive engineering | 2004
|Simulating HCCI Blending Octane Number of Primary Reference Fuel with Ethanol
SAE Technical Papers | 2017
|Simulating HCCI Blending Octane Number of Primary Reference Fuel with Ethanol
British Library Conference Proceedings | 2017
|HCCI Octane Number Scale in a Pressure-Temperature Diagram
SAE Technical Papers | 2019
|