کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6634702 | 461116 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Control of combustion process in an HCCI-DI combustion engine using dual injection strategy with EGR
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کلمات کلیدی
Premixed ratioRPMEGRIMEPaTDCPRRBDCISFCTDCITEbTDC - BTDCcompression ignition - احتراق فشرده سازیAfter Top Dead Centre - بعد از مرده مردهDual injection - تزریق دوگانهspark ignition - جرقه جرقهBrake thermal efficiency - راندمان حرارتی ترمزrevolutions per minute - سرعت در هر دقیقهHomogeneous Charge Compression Ignition - سوپاپ فشرده سازی همگنBefore Top Dead Centre - قبل از مرده مردهTop dead centre - مرکز مرده بالاBottom Dead Centre - مرکز مرده پایینIndicated Specific Fuel Consumption - مصرف سوخت خاص مشخص شده استPressure rise rate - نرخ افزایش فشارIndicated mean effective pressure - نشان دهنده فشار متوسط موثر استexhaust gas recirculation - گردش بازگشتی گاز اگزوز
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The objective of this study was to achieve a controlled HCCI-DI combustion using in-cylinder dual injection technique and to study the effect of premixed ratio and EGR on combustion, performance and emission characteristics of the engine. Studies were carried out up to 67% (0-67%) of the full load and a constant speed of 1500Â rev/min. The premixed ratio was varied from zero to a maximum of 80% of the total fuel by mass. At 50% load condition, occurrences of peak pressure, peak PRR and peak HRR varied within 5-7Â deg BTDC, 1.5-5Â deg BTDC and 1-4Â deg BTDC respectively. It was observed that diesel homogeneous combustion showed a two phase heat release pattern at higher premixed ratios and all combustion parameters advanced dramatically with increasing premixed ratio. The results showed that a reduction of 76% in NOX and 40% in smoke opacity were achieved using 80% premixed ratio with 30% EGR. As the premixed ratio was increased, there was an improvement in IMEP, ISFC and smoke opacity with penalties in HC and CO emissions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 159, 1 November 2015, Pages 580-589
Journal: Fuel - Volume 159, 1 November 2015, Pages 580-589
نویسندگان
Pranab Das, P.M.V. Subbarao, J.P. Subrahmanyam,