کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
772921 897757 2007 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Knock investigation by flame and radical species detection in spark ignition engine for different fuels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Knock investigation by flame and radical species detection in spark ignition engine for different fuels
چکیده انگلیسی

The present paper aims to evaluate the phenomena of normal combustion and knocking in a single cylinder, ported fuel injection, four-stroke spark-ignition engine with a four-valve production head. All the measurements were realized in an optically accessible engine equipped with a wide quartz window in the bottom of the chamber. The study was carried out using optical techniques based on flame natural emission imaging and spectroscopy from UV to visible. Radical species such as OH and HCO were detected and correlated to the onset and the duration of knock and presence of hot-spots in end-gas. Measurements were carried out at 1000 rpm with wide-open throttle and stoichiometric mixture. Pure iso-octane, suitable mixtures of iso-octane and n-heptane and commercial gasoline were used.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 48, Issue 11, November 2007, Pages 2897–2910
نویسندگان
, ,