کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7709891 | 1497393 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental validation of accuracy of dynamic hydrogen-compressed natural gas mixing system using a single cylinder spark ignition engine
ترجمه فارسی عنوان
اعتبار سنجی تجربی از دقت سیستم مخلوط کردن گاز طبیعی پویای هیدروژن با استفاده از یک موتور احتراق تک موتور سیلندر
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کلمات کلیدی
BMEPBSECH/C ratioBSHCBSNOxBSCObTDC - BTDCbrake mean effective pressure - ترمز فشار متوسط موثرBrake thermal efficiency - راندمان حرارتی ترمزbefore top dead center - قبل از مرده مردهBrake Specific Energy Consumption - مصرف انرژی ویژه ترمزSpark ignition engine - موتور احتراق احتراقBTE - وسایل کمکCombustion characteristics - ویژگی های احتراق
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
Natural gas is considered as one of the best alternate fuels because of its lower emissions and highest H/C ratio amongst hydrocarbons. Its usage requires minimum modifications in the existing engine hardware. Addition of hydrogen to the compressed natural gas (CNG) improves its combustion, performance and emission characteristics. In the present study, a compression ignition (CI) engine was modified to operate on hydrogen enriched compressed natural gas (HCNG) mixtures using port fuel injection in spark ignition (SI) mode. HCNG engine technology is not widespread and HCNG is not available commercially hence there is need of developing an online HCNG mixing system, which can deliver desired HCNG compositions dynamically on demand so that a wide range of experiments can be carried out to determine the optimum mixture composition. Very few researchers have made efforts to develop such a system and because of lack of such a system, majority of HCNG investigations are confined to 3-4 premixed HCNG mixtures. In this study, a dynamic HCNG mixing system was developed for producing different HCNG mixtures. The working of this dynamic mixing system was validated on a single cylinder SI engine for its performance and accuracy in delivering desired HCNG compositions. Experiments were performed for comparing combustion, performance and emission characteristics of dynamic HCNG mixtures with premixed blends, prepared using conventional method, employing Dalton's law of partial pressures. Results showed satisfactory performance of the dynamic mixing system at all engine loads. The HCNG mixture quality was the best at higher engine loads.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 32, 24 August 2016, Pages 14272-14282
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 32, 24 August 2016, Pages 14272-14282
نویسندگان
S.M.V. Sagar, Avinash Kumar Agarwal,