کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4453588 1620805 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gaseous emissions from compressed natural gas buses in urban road and highway tests in China
ترجمه فارسی عنوان
انتشار گازهای گلخانه ای از اتوبوس های گاز طبیعی فشرده در آزمایشات جاده ای و بزرگراه های شهری در چین
کلمات کلیدی
وسایل نقلیه فشرده گاز طبیعی، فاکتورهای انتشار، آزمایشات جاده ای بزرگراه
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست علوم زیست محیطی (عمومی)
چکیده انگلیسی

The natural gas vehicle market is rapidly developing throughout the world, and the majority of such vehicles operate on compressed natural gas (CNG). However, most studies on the emission characteristics of CNG vehicles rely on laboratory chassis dynamometer measurements, which do not accurately represent actual road driving conditions. To further investigate the emission characteristics of CNG vehicles, two CNG city buses and two CNG coaches were tested on public urban roads and highway sections. Our results show that when speeds of 0–10 km/hr were increased to 10–20 km/hr, the CO2, CO, nitrogen oxide (NOx), and total hydrocarbon (THC) emission factors decreased by (71.6 ± 4.3)%, (65.6 ± 9.5)%, (64.9 ± 9.2)% and (67.8 ± 0.3)%, respectively. In this study, The Beijing city buses with stricter emission standards (Euro IV) did not have lower emission factors than the Chongqing coaches with Euro II emission standards. Both the higher emission factors at 0–10 km/hr speeds and the higher percentage of driving in the low-speed regime during the entire road cycle may have contributed to the higher CO2 and CO emission factors of these city buses. Additionally, compared with the emission factors produced in the urban road tests, the CO emission factors of the CNG buses in highway tests decreased the most (by 83.2%), followed by the THC emission factors, which decreased by 67.1%.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Sciences - Volume 48, October 2016, Pages 193–199
نویسندگان
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