کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7722433 | 1497522 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
H2 effects on diesel combustion and emissions with an LPL-EGR system
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: H2 effects on diesel combustion and emissions with an LPL-EGR system H2 effects on diesel combustion and emissions with an LPL-EGR system](/preview/png/7722433.png)
چکیده انگلیسی
In this study, we examined H2 effects on the combustion and emissions of a diesel engine with low-pressure loop (LPL) exhaust gas recirculation (EGR). We converted a 2.2-L four-cylinder direct-injection diesel engine satisfying Euro5 for H2 supply. An LPL-EGR system replaced the high-pressure loop (HPL) EGR system. For all tests, the brake mean effective pressure (BMEP) was kept at 4Â bar and the EGR ratio was varied from 9 to 42%. The H2 energy percentage was varied from 0 to 7.4% independently to evaluate the H2 effects and EGR effects separately. The heat release rate was calculated from the measured cylinder pressure. We found that substitution of H2 for diesel fuel made the premixed burn fraction larger, and reduced the nitrous oxide (NOx) and particulate matter (PM) emissions simultaneously. For example, the NOx emissions were reduced by 36% for an EGR of 42% and an H2 percentage of 7.4%. PM emissions were reduced by 18% for an EGR of 35% and an H2 percentage of 7.4% compared with diesel fuel only cases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 23, 6 August 2013, Pages 9897-9906
Journal: International Journal of Hydrogen Energy - Volume 38, Issue 23, 6 August 2013, Pages 9897-9906
نویسندگان
Youngsoo Cho, Soonho Song, Kwang Min Chun,