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(searched for: doi:10.4271/2011-01-1180)
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Akhilendra P. Singh,
Energy, Environment, and Sustainability pp 359-385; https://doi.org/10.1007/978-981-10-7518-6_15

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Y.H. Teoh, , M.A. Kalam, Muhammad Afifi Amalina, H.G. How
Applied Mechanics and Materials, Volume 663, pp 26-33; https://doi.org/10.4028/www.scientific.net/amm.663.26

Abstract:
This study investigated the effects of premixed diesel fuel on the auto-ignition characteristics in a light duty compression ignition engine. A partial homogeneous chargecompression ignition (HCCI) engine was modified from a single cylinder, four-stroke, direct injection compression ignition engine. The partial HCCI is achieved by injecting diesel fuel into the intake port of the engine, while maintaining diesel fuel injected in cylinder for combustion triggering. The auto-ignition of diesel fuel has been studied at various premixed ratios from 0 to 0.60, under engine speed of 1600 rpm and 20Nm load. The results for performance, emissions and combustion were compared with those achieved without premixed fuel. From the heat release rate (HRR) profile which was calculated from in-cylinder pressure, it is clearly observed that two-stage and three-stage ignition were occurred in some of the cases. Besides, the increases of premixed ratio to some extent have significantly reduced in NO emission.
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