NDLI: An Imaging Study of Compression Ignition Phenomena of Iso-Octane , Indolene , and Gasoline Fuels in a Single-Cylinder Research Engine

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An Imaging Study of Compression Ignition Phenomena of Iso-Octane , Indolene , and Gasoline Fuels in a Single-Cylinder Research Engine

Content Provider	Semantic Scholar
Author	Zigler, Bradley T. Walton, Stephen R. Assanis, Dimitris Perez, Elizabeth Wooldridge, Margaret S. Wooldridge, Steven T.
Copyright Year	2008
Abstract	High-speed imaging combined with the optical access provided by a research engine offer the ability to directly image and compare ignition and combustion phenomena of various fuels. Such data provide valuable insight into the physical and chemical mechanisms important in each system. In this study, crank-angle resolved imaging data were used to investigate homogeneous charge compression ignition (HCCI) operation of a single-cylinder four-valve optical engine fueled using gasoline, indolene, and iso-octane. Lean operating limits were the focus of the study with the primary objective of identifying different modes of reaction front initiation and propagation for each fuel. HCCI combustion was initiated and maintained over a range of lean conditions for various fuels, from 0.69 to 0.27. The time-resolved imaging and pressure data show that high rates of heat release in HCCI combustion correlate temporally to simultaneous, intense volumetric blue emission. Lower rates of heat release are characteristic of spatially resolved blue emission. Gasoline supported leaner HCCI operation than indolene. Iso-octane showed a dramatic transition into misfire. Similar regions of preferential ignition were identified for each of the fuels considered using the imaging data. DOI: 10.1115/1.2898720
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www-personal.umich.edu/~mswool/publications/Zigler%20Eng_Gas_Turbines_Power%202008%20130.pdf
Language	English
Access Restriction	Open
Subject Keyword	Crank (person) Cylinder seal Cylinder-head-sector Digital Object Identifier Gasoline Isoproterenol KSD-64 Lean integration Methamphetamine Methylene blue Nerve compression syndrome Software propagation Temporal logic Transcription Initiation octane
Content Type	Text
Resource Type	Article

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