期刊
COMBUSTION AND FLAME
卷 161, 期 1, 页码 270-279出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.combustflame.2013.07.018
关键词
In-cylinder thermometry; Charge cooling; Alcohol-gasoline blends; GDI engines
类别
资金
- Engineering and Physical Science Research Council (EPSRC) UK
- EPSRC
- B.P.
The first application of Laser Induced Thermal Gratings Spectroscopy (LITGS) for precision thermometry in a firing GDI optical engine is reported. Crank-angle resolved temperature values were derived from LITGS signals generated in fuel vapour with a pressure dependent precision in the range 0.1-1.0% allowing differences in evaporative or charge cooling effects arising from a variety of ethanol and methanol blends with a model gasoline fuel to be quantified. In addition, fluctuations in temperature arising from cyclic variations in compression were directly detected and measured. (C) 2013 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
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