High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine
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...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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2014
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| _version_ | 1826257748170375168 |
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| author | Williams, B Edwards, M Stone, R Williams, J Ewart, P |
| author_facet | Williams, B Edwards, M Stone, R Williams, J Ewart, P |
| author_sort | Williams, B |
| collection | OXFORD |
| description | 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. © 2013 The Combustion Institute. |
| first_indexed | 2024-03-06T18:23:04Z |
| format | Journal article |
| id | oxford-uuid:06f97373-4679-471a-b3ae-495223705829 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:23:04Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | oxford-uuid:06f97373-4679-471a-b3ae-4952237058292022-03-26T09:05:12ZHigh precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engineJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:06f97373-4679-471a-b3ae-495223705829EnglishSymplectic Elements at Oxford2014Williams, BEdwards, MStone, RWilliams, JEwart, PThe 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. © 2013 The Combustion Institute. |
| spellingShingle | Williams, B Edwards, M Stone, R Williams, J Ewart, P High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine |
| title | High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine |
| title_full | High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine |
| title_fullStr | High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine |
| title_full_unstemmed | High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine |
| title_short | High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine |
| title_sort | high precision in cylinder gas thermometry using laser induced gratings quantitative measurement of evaporative cooling with gasoline alcohol blends in a gdi optical engine |
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