کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1731853 | 1521459 | 2015 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental investigations on effect of different compression ratios on enhancement of maximum hydrogen energy share in a compression ignition engine under dual-fuel mode
ترجمه فارسی عنوان
تحقیقات تجربی در مورد اثر نسبت فشرده سازی مختلف به افزایش حداکثر سهم هیدروژن در یک موتور احتراق فشرده در حالت سوخت دوگانه
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کلمات کلیدی
هیدروژن، حالت سوخت دوگانه، افزایش سهم انرژی، نسبت تراکم، شدت دست کشیدن،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
The study deals the effect of different compression ratios on maximum hydrogen energy share, thermal efficiency, and emissions in a 7.4Â kW direct injection CI (compression ignition) engine under dual-fuel mode. Experimental tests were conducted on the engine with three different compression ratios (19.5:1 base (CR1), 16.5:1 (CR2), and 15.4:1 (CR3)) using hydrogen as main fuel and diesel as pilot fuel at 100% load and constant speed of 1500Â rpm. Knock limited maximum hydrogen energy share enhanced significantly from 19% with CR1 to 59% and 63% with CR2 and CR3. The percentage reductions of NOx emission in the engine with CR2 and CR3 are about 43% and 48% respectively. HC (Hydrocarbon) and CO (carbon monoxide) emissions reached to zero level with the hydrogen addition at all compression ratios. The optimum compression ratio is 16.5:1 in view of higher thermal efficiency and lower emissions (HC, CO, smoke, and NOx). A notable conclusion emerged from the study is that the reduction in compression ratio of the engine is a promising option for the improvement in hydrogen energy share and thermal efficiency along with benefits of lower emissions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 87, 1 July 2015, Pages 448-462
Journal: Energy - Volume 87, 1 July 2015, Pages 448-462
نویسندگان
V. Chintala, K.A. Subramanian,