کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11000530 | 1424929 | 2019 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An investigation on the characteristics of and influence factors for NO2 formation in diesel/methanol dual fuel engine
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
DMCCHO2hydroperoxylMSPHRRECUdiesel/methanol compound combustionDMDFTDCaTDCNOx - NOXNitrogen oxides - اکسید نیتروژنafter top dead center - بعد از مرده مردهdiesel methanol dual fuel - دیزل متانول سوخت دوگانهCrank Angle - زاویه میل لنگdiesel/methanol dual fuel - سوخت دیزل / متانول دوگانهInfluence factors - عوامل تاثیرگذارtop dead center - مرکز مرده بالاNitrogen monoxide - منوکسید نیتروژنHeat release rate - نرخ انتقال حرارتNO2 - نیتروژن دیاکسیدNitrogen dioxide - نیتروژن دیاکسیدelectronic control unit - واحد کنترل الکترونیکی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
It had been found in previous experimental studies that the compression ignition engine with Diesel/Methanol Compound Combustion (DMCC) could significantly increase nitrogen dioxide (NO2) emission, compared with conventional diesel mode. However, the detailed formation process and influence factors of NO2 in Diesel/Methanol Dual Fuel (DMDF) engine have not been reported previously. In order to investigate the mechanism of increased NO2 and effect factors of NO2 emission, following works were conducted: Firstly, in light of the literature researches, a hypothesis concerning the NO2 formation procession in DMDF engine was presented, whose demonstration was realized by using numerical simulation; Secondly, the experiments about the effect of methanol substitute proportion (MSP), exhaust gas recirculation (EGR) and exhaust backpressure on the NO2 emission were conducted, whose results were analyzed by using the proved hypothesis. The results of simulation justified that compared with diesel case, the existence of methanol premixed region in DMDF mode was the main cause of increased NO2, and the impact of temperature on the NO2 emission mainly lay in that of temperature on hydroperoxyl (HO2) radicals. The experiments showed that along with the increase of MSP, NO2 emission increased firstly and then decreases. The addition of EGR could lead to the reduction of NO2, while the slight increase of exhaust backpressure would increase total nitrogen oxides (NOX) emission.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 235, 1 January 2019, Pages 617-626
Journal: Fuel - Volume 235, 1 January 2019, Pages 617-626
نویسندگان
Han Lu, Anren Yao, Chunde Yao, Chao Chen, Bin Wang,