Reference and Pure Component Fuel Characterization in an Ignition Quality Tester Derived Cetane Rating Unit
Primary diesel and gasoline reference fuels, along with secondary reference diesel fuels across a very broad cetane range were tested in an Ignition Quality Tester (IQT) unit using the ASTM D6890 protocol. Additionally, numerous pure component fuels across a range of hydrocarbon size and structure were evaluated. The reference fuels’ ignition delay (IGD) followed expected trends, however, the diesel PRF fuels in the low cetane range produced DCNs (derived cetane numbers) that were moderately higher (shorter IGDs) than their cetane reference values. From the perspective of fuel size, IGD shows a significant ‘shortening’ - faster nature with increased fuel carbon number. For a given carbon number fuel molecule, normal alkanes showed the ‘fastest’ IGD, with alkenes and branched alkyl aromatics leading to moderately longer IGDs. Cyclo-paraffins had the ‘slowest’ - longest IGDs. Various methods were used to determine the IGD of the various fuels. The pressure recovery start of combustion IQT criterion is quite comparable to the 5% energy release criterion often used in diesel engine combustion analysis. Companion modeling was also pursued in this study in order to further understand these experimental results.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/19463936
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Supplemental Notes:
- Abstract reprinted with permission of SAE International.
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Authors:
- Luning Prak, Peter
- Hamilton, Len
- Luning-Prak, Dianne
- Cowart, Jim
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Conference:
- WCX™ 17: SAE World Congress Experience
- Location: Detroit Michigan, United States
- Date: 2017-4-4 to 2017-4-6
- Publication Date: 2017-3-28
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: pp 1163-1173
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Serial:
- SAE International Journal of Engines
- Volume: 10
- Issue Number: 3
- Publisher: SAE International
- ISSN: 1946-3936
- EISSN: 1946-3944
- Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-03/
Subject/Index Terms
- TRT Terms: Carbon; Cetane number; Compression ignition engines; Diesel engines; Diesel fuels; Fuel consumption; Fuels by properties; Hydrocarbons
- Subject Areas: Energy; Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01639754
- Record Type: Publication
- Source Agency: SAE International
- Report/Paper Numbers: 2017-01-0715
- Files: TRIS, SAE
- Created Date: Jun 28 2017 2:40PM