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High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine

Abstract:

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 tempe...

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Authors


Williams, B More by this author
Edwards, M More by this author
Williams, J More by this author
Journal:
Combustion and Flame
Volume:
161
Issue:
1
Pages:
270-279
Publication date:
2014-01-05
DOI:
EISSN:
1556-2921
ISSN:
0010-2180
URN:
uuid:06f97373-4679-471a-b3ae-495223705829
Source identifiers:
440814
Local pid:
pubs:440814

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