کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
242692 501897 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Conceptual model description of the double injection strategy applied to the gasoline partially premixed compression ignition combustion concept with spark assistance
ترجمه فارسی عنوان
توصیف مدل مفهومی استراتژی دوگانه تزریق شده به مفهوم احتراق فشرده شده با بنزین با کمک جرقه
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


• Double injection improves the combustion control in low load.
• Double injection enhances both phases of the combustion mode.
• Double injection increases the combustion area in the chamber.
• Combustion process described by mixing process, OH* and natural luminosity images.

New combustion concepts applied to compression ignition engines are focused on achieve low temperature combustion together with a lean mixture distribution by allowing extra time from the end of injection to the start of combustion. Recently, the use of gasoline in a compression ignition engine under PPC conditions has been demonstrated as a suitable technique to achieve this extra mixing time, however the concept has also demonstrated difficulties under low load conditions using gasoline with octane number up to 95. The use of spark assistance with single injection operation has been found to be an appropriate way to improve the combustion control, providing both temporal and spatial control over the combustion process.The current paper details the influence of the double injection strategy on the spark assisted partially premixed combustion concept compared with the single injection strategy. For this purpose, a reference combustion cycle for both injection strategies is compared in terms of the main parameters derived from the in-cylinder pressure signal as well as OH* and natural luminosity images acquired from the single-cylinder transparent engine. The cylinder head used along the research has been modified including a spark plug. In addition, a detailed analysis of the air/fuel mixing process has been developed by means of a 1-D in-house spray model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 129, 15 September 2014, Pages 1–9
نویسندگان
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