کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1510754 1511169 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Qualitative Governing Approach of a Spark Ignition Engine Using Exhaust Gas Recirculation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Qualitative Governing Approach of a Spark Ignition Engine Using Exhaust Gas Recirculation
چکیده انگلیسی

A qualitative governing approach of a Spark Ignition (SI) engine incorporating Exhaust Gas Recirculation (EGR) was studied using AVL Boost. SI engines being quantitatively governed by controlling the quantity of charge inducted, leading to high throttling losses. To qualitatively govern the engine, charge purity was reduced by incorporating EGR, thereby reducing the amount of available oxygen in the charge inducted. The effect of charge dilution is to slow down the flame development and propagation, increasing the combustion durations. A simulation model which includes a curve fit equation to predict the combustion duration and start of combustion was created. The engine could be qualitatively governed by a maximum of 19% EGR, to reduce the brake mean effective pressure (bmep) by 20%. This led to 20% reduction in NOx and CO at full load, with 2.5% increase in brake specific fuel consumption (bsfc), also an increase in HC emissions by 50%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Procedia - Volume 66, 2015, Pages 97-100