温度场熵在矩形散热翅片中的应用  

The Application of Temperature Field Entropy in Rectangle Fin Radiator

作　　者：陈曦[1] 

机构地区：[1]重庆师范大学化学学院,重庆400047

出　　处：《重庆师范大学学报（自然科学版）》2007年第2期53-56,共4页Journal of Chongqing Normal University:Natural Science

基　　金：国家高技术研究发展计划项目(2002AA647020);国家自然科学基金(N0.20476063)

摘　　要：在热力学熵和物理场熵的基础上定义了温度场熵的概念,并根据物理场熵的计算方法推导出了温度场熵的计算公式。将此公式应用于矩形散热翅片的研究中,根据翅片表面温度分布函数,计算出翅片表面的温度场熵。在与翅片传热效率比较后可定量地描述矩形散热翅片的热力学完善程度。The study emphasizes on the definition of temperature field entropy and its application. By the calculation methods of physical field entropy, a quantitative correlation equation is deduced to calculate the temperature field entropy. According to the temperature distributing function of rectangle wing radiator, we can calculate the temperature field entropy on the wing radiator surface. By comparison with heat transfer efficiency the temperature field entropy on the wing surface can quantita- tively describe it~ thermodynamics consummate degree. The research also proves that the temperature field entropy on the wing surface changes with its own parameters： Length, thickness and heat conduction coefficient. It demonstrates, within a certain range, that the Hr reduces as the rising of heat conduction coefficient and thickness, or increases as the rising of length.

关 键 词：物理场熵 矩形散热翅片 温度场熵 热效 

分 类 号：O431.2[机械工程—光学工程]