摘要
采用数值计算方法对翅片管管片式换热器的肋效率进行了计算和分析,研究扁管肋片厚度、导热系数等因素对肋效率的影响,得出翅片管管片在局部换热系数和平均换热系数下,肋效率的对比分析.
The fin efficiency of flat tube-fin heat exchanger is analyzed with numerical method with consideration of the effects of the pitch of the tube, the fin thickness and heat transfer coefficient on fin efficiency. The differences of the fin efficiency obtained by using the local and averaged heat transfer coefficients are analyzed.
出处
《兰州交通大学学报》
CAS
2009年第3期144-147,共4页
Journal of Lanzhou Jiaotong University
关键词
肋效率
数值计算
传热
散热器
fin efficiency
numerical calculation
heat transfer
heat exchanger
