کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10390490 884573 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of recoverable exhaust energy from a light-duty gasoline engine
ترجمه فارسی عنوان
تجزیه و تحلیل انرژی اگزوز قابل بازیافت از یک موتور بنزینی سبک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
While EER (Exhaust Energy Recovery) has been widely pursued for improving the total efficiency and reducing CO2 emissions of internal combustion engines, the improvement on engine efficiency has been investigated with experimental work and numerical simulation based on a steam Rankine cycle EER system. The test was conducted on a light-duty gasoline engine connected with a multi-coil helical heat exchanger. Combining those experimental and modelling results, it demonstrates that the flow rate of working fluid plays a very important and complex role for controlling the steam outlet pressure and overheat degree. For achieving required overheat and steam pressure, the flow rate must be carefully regulated if the engine working condition changes. The flow rate has also significant influence on the heat exchanger efficiency. To achieving better heat transfer efficiency, the flow rate should be maintained as high as possible. From the simulation, it is found the EER system based on the light-duty test engine could increase the engine fuel conversion efficiency up to 14%, though under general vehicle operating conditions it was just between 3% and 8%. From the test, it is found the installation of heat exchanger can increase the exhaust back pressure slightly, the total fuel saving of the engine could be up to 34% under some operating condition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 53, Issue 2, 2 May 2013, Pages 414-419
نویسندگان
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