کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7717377 | 1497472 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An experimental investigation on the performance characteristics of a hydroxygen enriched gasoline engine with water injection
ترجمه فارسی عنوان
یک بررسی تجربی بر روی عملکرد یک موتور بنزینی غنی شده با هیدروکسین با تزریق آب
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کلمات کلیدی
هیدروژن، تزریق آب موتور بنزینی، سوخت های جایگزین،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
In this study, effect of hydroxygen (H2Â +Â O2) addition on performance and emissions of a gasoline engine was experimentally investigated. Flow rate of hydroxygen gas mixture was adjusted to 0%, 3.75% (2.5% H2Â +Â 1.25% O2) and 7.5% (5% H2Â +Â 2.5% O2) by-volume of intake charge for entire speed range of the engine. Then, water was injected into the intake manifold of the SI engine to decrease NOx emissions which were significantly increased with hydroxygen addition. Mass flow ratio of water with respect to gasoline was kept constant as 0.25/1. The original electronic control unit (ECU) wasn't modified and a self-developed ECU was used to control gas injectors (for hydroxygen) and water injector. Initially, gasoline injection rate and intake air flow rate were measured with 50% constant throttle position for entire speed range (1500-5000Â rpm) of the test engine and then, calculated hydroxygen and water flow rates were introduced into engine. Total hydrocarbons, oxides of nitrogen and carbon monoxide were measured and COVimep, brake power, brake thermal efficiency and BSEC were calculated. According to test results, brake power, brake thermal efficiency and oxides of nitrogen of the test engine were increased up to 11.7%, 5.9% and 141.1% respectively with hydroxygen addition, whereas COVimep, BSEC, total hydrocarbons and carbon monoxide were decreased up to 15.2%, 5.6%, 74.5% and 59.5% with hydroxygen addition. The maximum increase of NOx emission with hydroxygen addition was decreased from 141.1% to 82.7% with water injection. However, the improvements in cyclic variation, brake power, brake thermal efficiency, BSEC, THC and CO emission with hydroxygen addition were reduced with water injection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 1, 5 January 2015, Pages 692-702
Journal: International Journal of Hydrogen Energy - Volume 40, Issue 1, 5 January 2015, Pages 692-702
نویسندگان
Y. Karagöz, L. Yüksek, T. Sandalcı, A.S. Dalkılıç,