کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7162111 | 1462857 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new closed-form thermodynamic model for thermal simulation of spark ignition internal combustion engines
ترجمه فارسی عنوان
یک مدل ترمودینامیکی فرم بسته جدید برای شبیه سازی حرارتی موتور احتراق داخلی احتراق جرقه
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کلمات کلیدی
مدل فرم بسته ترمودینامیک سرعت محدود، ترمودینامیک زمان محدود، موتور احتراق داخلی، موتور احتراق جرقه
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
A closed form model based on finite speed thermodynamics, FST, modified to consider various losses was developed on Otto cycle. In this regard, the governing equations of the finite speed thermodynamics were developed for expansion/compression processes while heat absorption/rejection of the Otto cycle was determined based on finite time thermodynamics, FTT. In addition, other irreversibility including power loss caused by heat transfer through the cylinder walls and irreversibility due to throttling process was integrated into the model. The developed model was verified by implementing on two different spark ignition internal combustion engines and the results of modeling were compared with experimental results as well as FTT model. It was found that the developed model was not only very simple in use like a closed form thermodynamic model, but also it models a real spark ignition engine with reasonable accuracy. The error in predicting the output power at rated operating range of the engine was 39%, while in the case of the FTT model, this figure was 167.5%. This comparison for predicting thermal efficiency was +7% error (as difference) for the developed model compared to +39.4% error of FTT model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 105, 15 November 2015, Pages 607-616
Journal: Energy Conversion and Management - Volume 105, 15 November 2015, Pages 607-616
نویسندگان
Afshin Barjaneh, Hoseyn Sayyaadi,