کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1278729 1497572 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An experimental study on the effect of hydrogen enrichment on diesel fueled HCCI combustion
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
An experimental study on the effect of hydrogen enrichment on diesel fueled HCCI combustion
چکیده انگلیسی

This paper experimentally investigates the influence of hydrogen enrichment on the combustion and emission characteristics of a diesel HCCI engine using a modified Cooperative Fuel Research (CFR) engine. Three fuels, n-heptane and two middle distillates with cetane numbers of 46.6 and 36.6, are studied.The results show that hydrogen enrichment retards the combustion phasing and reduces the combustion duration of a diesel HCCI engine. Besides, hydrogen enrichment increases the power output and fuel conversion efficiency, and improves the combustion stability. However, hydrogen enrichment may narrow the operational compression ratio range and increase the knocking tendency. Both the overall indicated specific CO emissions (isCO) and CO emissions per unit burned diesel fuel mass are reduced by hydrogen enrichment. Although hydrogen enrichment decreases the overall indicated specific unburned hydrocarbon emissions (isHC), it does not significantly affect the HC emissions per unit burned diesel fuel mass.


► We find that hydrogen enrichment retards combustion phasing.
► Hydrogen enrichment reduces combustion duration.
► Hydrogen enrichment increases thermal efficiency.
► Hydrogen enrichment improves combustion stability.
► Hydrogen enrichment reduces CO and HC emissions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 36, Issue 21, October 2011, Pages 13820–13830
نویسندگان
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