کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1868403 | 1530659 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Brownian micro-engines and refrigerators in a spatially periodic temperature field: Heat flow and performances
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Brownian micro-engines and refrigerators in a spatially periodic temperature field: Heat flow and performances Brownian micro-engines and refrigerators in a spatially periodic temperature field: Heat flow and performances](/preview/png/1868403.png)
چکیده انگلیسی
We study the thermodynamic features of a thermal motor driven by temperature differences, which consists of a Brownian particle moving in a sawtooth potential with an external load. The motor can work as a heat engine or a refrigerator under different conditions. The heat flow driven by both potential and kinetic energy is considered. The former is reversible when the engine works quasistatically and the latter is always irreversible. The efficiency of the heat engine (Coefficient Of Performance (COP) of a refrigerator) can never approach Carnot efficiency (COP).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 352, Issues 4â5, 3 April 2006, Pages 286-290
Journal: Physics Letters A - Volume 352, Issues 4â5, 3 April 2006, Pages 286-290
نویسندگان
Bao-Quan Ai, Liqiu Wang, Liang-Gang Liu,