Experimental Investigation of the Effect of Mixed Additives on Homogeneous Charge Compression Ignition Combustion |
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| Authors: | LI Chao JI Chang-wei HE Chao LI Yun-zhe HE Hong SHEN Zi-you |
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| Affiliation: | [1]Department of Automotive Engineering, Beijing University of Technology, Beijing 100022, China [2]Department of Applied Chemistry, Beijing University of Technology, Beijing 100022, China |
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| Abstract: | The experimental investigation of homogeneous charge compression ignition (HCCI) process is carried out on a 4-cylinder diesel engine. One of the cylinders is modified for HCCI combustion with mixed additives. The influence of mixed additives on the HCCI combustion process is investigated. The experimental results indicate that the mixed additives are better than the single additives for HCCI fuel, causing ignition and heat release to be advanced and the peak of heat release rate to increase under the condition of different engine speeds and steady HCCI combustion. Moreover, with the increase in engine speed, the influence of mixed additives on HCCI combustion is more obvious. In addition, the mixed additives are beneficial to improve HCCI engine misfire at a high engine speed and make the engine operate stable. |
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| Keywords: | power machinery engineering homogeneous charge compression ignition (HCCI) mixed additive combustion cylinder pressure |
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