کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
646488 | 1457158 | 2014 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Parametric analysis of a dual-loop ORC system for waste heat recovery of a diesel engine
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The maximum potential of a dual-loop organic Rankine cycle (ORC) applied to a light-duty diesel engine is analyzed over the engine's operational range by developing a mathematical model based on physical processes and boundary conditions specified according to measured data from an engine test. We further evaluate the effects of three working parameters-expander isentropic efficiency, evaporation pressure of the high-temperature loop, and condensation temperature of the low-temperature loop-on the performance of the dual-loop ORC system. The results show that using the proposed dual-loop ORC system improves the net power output of a diesel automotive engine by 19-22% in the peak thermal-efficiency region under allowable working conditions of the engine, and by 53-72% in the high-speed and low-load regions. Over the engine's entire operational range, the effective thermal efficiency increases by a maximum of 8%. Moreover, the expander isentropic efficiency and the condensation temperature of the low-temperature loop are two critical parameters that affect combined system performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 67, Issues 1â2, June 2014, Pages 168-178
Journal: Applied Thermal Engineering - Volume 67, Issues 1â2, June 2014, Pages 168-178
نویسندگان
E.H. Wang, H.G. Zhang, B.Y. Fan, M.G. Ouyang, F.Y. Yang, K. Yang, Z. Wang, J. Zhang, F.B. Yang,