吉林大学学报(工学版)

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HCCI operating region of internal combustion engine with ethanol as fuel

Liu Jin-shan , Guo Ying-nan , Tan Man-zhi , Huang Wei-jun , Yang Li-ping, Gao Yuan   

  1. College of Automotive Engineering, Jilin University, Changchun 130022, China
  • Received:2005-10-18 Revised:2005-12-26 Online:2006-05-01 Published:2006-05-01
  • Contact: Liu Jinshan

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Abstract: The HCCI operating region of an internal combustion engine with ethanol as the fuel was studied experimentally on a single cylinder HCCI engine modified from a CA6110 diesel engine. The HCCI operating regions expressed by the mean indicated pressure and engine speed were found out, and the mean indicated heat efficiency and the emission performance were analyzed. The experimental results show that HCCI can obtain high mean indicated heat efficiency up to 60％ and mainly be effected by the engine load and hardly by the engine speed. Only little NOx is formed with the maximal indicated specific emission of NOx only 1g/kWh .But the CO and HC emissions are high, even at the region of the minimum HC and CO emission, they can reached 5 g/kWh, being sensitive to load.

Key words: power machinery and engineering, internal combustion engine, ethanol, homogeneous charge compression ignition(HCCI) combustion, operating region, emission performance

CLC Number: 

  • TK411.71
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